Oats exhibit a wealth of carbohydrates,soluble dietary fiber,proteins,lipids,phenolic compounds,alkaloids,vitamins,and minerals. Among these,avenanthramide are compounds exclusively found in oats. This paper primarily reviewed the research progress related to nomenclature,classification,extraction methods,synthesis,content enhancement,structure-activity and antioxidant activity,as well as the bioavailability,and physiological activity of avenanthramide. It prospected the functional value of avenanthramide in food health and clinical medicine,as well as the optimization of chemical synthesis processes,aiming to offer insights for the development and utilization of avenanthramide.

【Objective】To understand the current situation of garden plant resources and application in park green spaces of Yuzhou District,Yulin City.【Methods】A survey of 10 artificial plant communities in park green spaces of Yuzhou district,Yulin City were conducted. The species resources and application of garden plants were statistically analyzed.【Results】There were 76 families,177 genera,and 261 species of garden plants in park green spaces of Yuzhou District,Yulin City,including 1 fern,8 gymnosperms and 252 angiosperms （consisting of 169 dicotyledonous plants and 83 monocotyledonous plants）. The dominant garden plant families were Palmae,Moraceae,Bambusoideae,Euphorbiaceae,Myrtaceae and Caesalpiniaceae. There were 105,84,4,and 68 species of trees,shrubs,woody climber,and herbs. Woody plants were mainly evergreen plants,and herbaceous plants were mainly perennial plants. A total of 19 hydrophytes and phreatophytes were found. There were 177,147,83,22,and 23 species of ornamental flower,foliage, fruit,stem,and aromatic plants,respectively.【Conclusion】The garden plant species in park green spaces of Yuzhou District,Yulin City were abundant. The dominant families of garden plants were mainly plants with tropical and subtropical origins. Evergreen trees were widely used. Garden plants were mainly ornamental flower,foliage and fruit plants.

【Objective】Conduct genetic analysis of the main nutritional quality traits of maize stems at the molecular level，to provide theoretical basis for genetic improvement of the main nutritional quality traits of maize stems.【Methods】The study used 381 different types of maize inbred lines as associated populations and planted randomly in the experimental field of the Hebi Academy of Agricultural Sciences in Henan Province in 2016 and 2017. The nutritional quality traits acid washing fiber（ADF），neutral washing fiber（NDF），and digestibility（IVDMD） were investigated during the heading，filling，and maturity stages. Using the Maize SNP50 gene chip，461 053 high-quality SNPs were obtained for genome-wide association analysis.【Results】Using the generalized linear model（GLM） analysis，a total of 392 significantly correlated stem nutritional quality traits SNPs（P<1.08×10^-7） were detected on 10 chromosomes of maize during different growth stages of the two years，with phenotypic variation interpretation rates of 9.69% -17.34%. 97 SNPs were found to be independently associated more than twice，resulting in a total of 77 candidate genes associated with stem nutritional quality traits. Using the mixed linear model（MLM）analysis，a total of 257 significantly correlated SNPs were detected over the two years（P<2.17×10^-6），with phenotypic variation interpretation rates of 9.82% -20.20%. 17 SNPs were found to be independently associated more than twice，resulting in a total of 82 candidate genes. Among them，10 overlap with GLM model candidate genes. A total of 159 candidate association genes were identified by GLM and MLM，among which 43 candidate genes were detected twice or more. Zm00001d021261 was found to be associated with ADF，NDF，and IVDMD in different years 31 times at multiple loci. This gene encoded ATP binding protein and chloroplast sensor kinase，had the highest expression in leaves at maturity stage. Zm00001d021255 was found to be associated with stem nutritional quality traits 10 times at two loci. This gene encoded cysteine rich receptor like protein kinase 25，which was only expressed in developmental internodes and female panicles，can be further studied and validated.【Conclusion】Using GLM and MLM models could quickly and effectively associate significant loci related to maize stem nutrient quality. HC-SNP could be screened through repetitive significant loci，and then associated gene enrichment regions could be excavated.

【Objective】To reveal the current situation and water-saving potential of main crops irrigation in Hetao Irrigated Area and put forward optimization suggestions.【Methods】The irrigation situation was analyzed by using the survey data and literature data of 310 households in Hanggin Rear Banner.【Results】In this region, wheat, corn and sunflower were irrigated for many times with high irrigation quota, and the average crop irrigation water productivity was only 1.43 kg/m ³.By adopting water-saving planting technology and scientific irrigated in Autumn, the three main crops could save 200 million-315 million m ³ water per year.【Conclusion】Since the irrigation behavior and low water resource utilization efficiency in Hetao irrigated area, large water-saving space can be ture by combining the border irrigation and high efficient water-saving irrigation.

One of the most important organs in plants is the root system. To maximize crop output potential,cultivating a healthy root system is critical. The growth,development,and configuration of maize root system have been studied extensively by researchers in China and overseas. This paper summarized the research results of maize root system characteristics,important factors affecting root system growth,root system configuration research methods,and main factors affecting root system configuration,based on the research progress of maize root system and its configuration,in order to provide a reference for future maize root system research.

Plant height is an important indicator of the ideal plant type of maize and closely related to yield. It affects plant photosynthetic utilization，lodging resistance，harvest index，etc. By altering cell division and elongation，phytohormones change the length and quantity of maize internodes，modifying maize plant height to achieve the effect of dwarfing crops. This paper reviewed the research progress in recent years on the mapping and cloning of QTL/genes that control maize plant height and the formation of dwarf mutants under the regulation of hormones（GA₃，IAA，BR），in order to provide references for the production and application of maize breeding.

A haploid organism is an individual containing a single set of chromosomes. A double haploid is a homozygous diploid of haploids by double chromosomes. Haploid breeding has been widely used in the research of genetic breeding by research institutions and comnlercial breeding companies worldwide. In this paper, the important technical aspects in haploid breeding and the latest progress in the breeding of haploid plants are reviewed.

【Objective】 In order to reveal the physiological response of different sugar beet varieties to saline-alkali stress and screen salt-alkali tolerant varieties.【Methods】 15 main sugar beet varieties were used as materials to simulate the effects of different degrees of salt-alkali stress（control,light,moderate and severe saline-alkali soil）on the growth and physiological indexes of sugar beet seedlings under natural soil conditions.【Results】 Compared with the control,the seedling emergence rate,fresh weight,dry weight and chlorophyll content of 15 sugar beet varieties decreased in varying degrees with the increase of salt-alkali stress.The five varieties of seedling emergence rate decreasing slightly： were MA3001,MA2070,KWS1176,KWS9149,MA079,and the five varieties of fresh weight decreasing slightly： were MA3001,KWS1176,KWS2323,NEI2499,BETA379,and the five varieties of dry weight decreasing slightly：were KWS1176,BETA5043,MA3001,MA079,BETA379.The decreases of MA3001 and KWS1176 were smaller so that these were the salt-alkali tolerant varieties.The plasmalemma permeability and MDA content in leaves of 15 sugar beet varieties increased with the increase of salt-alkali stress，and small the increase ofor the salt-alkali tolerant sugar beet seedlings was smaller.With the increase of salt-alkali stress，the SOD activity of 15 sugar beet varieties was different，and the POD activity of different varieties showed a single peak curve change，and SOD activity and POD activity of salt-alkali tolerant varieties decreased slightly in severe saline-alkali soil.【Conclusion】 MA3001 and KWS1176 are salt-alkali tolerant sugar beet varieties.They can effectively reduce the membrane lipid peroxidation and the plasmalemma permeability of leaves by strengthening the activity of antioxidant enzymes，thereby improving the salt-alkali tolerance of sugar beet seedlings.

【Objective】The evaluation index system of maize varieties suitable for mechanical grain harvest in Inner Mongolia was established to provide the basis for the evaluation,selection and timely harvest of maize varieties suitable for mechanical grain harvest in Inner Mongolia,and to point out the direction for variety breeding.【Methods】The representative varieties of six maturity groups from extremely early maturity to late maturity were used as experimental materials to study the mechanical grain harvest traits simultaneously in six ecological regions of Inner Mongolia,at the physiological maturity,10,20 and 30 d after physiological maturity,the grain breakage rate,grain fragmentation rate,impurity rate,grain moisture content and plant lodging rate were measured;The varieties with suitable ecological regions conditions and excellent mechanical grain harvest traits were selected for the identification and selection of evaluation index of varieties suitable for mechanical grain harvest.【Results】Grain breakage rate,grain fragmentation rate and impurity rate have an extremely significant positive correlation with grain moisture content（ P<0.01）. The grain moisture content at harvest stage has an extremely significant negative correlation with the time and accumulated temperature from emergence to harvest,from silking to harvest,and from maturity to harvest（ P<0.01）,and the correlation increased in turn.The grain dehydration rate has an extremely significant positive correlation with the basic moisture content and daily average temperature（ P<0.01）. The regression equation of grain dehydration rate （ y） with basic moisture content （ x ₁） and daily average temperature （ x ₂） was y=-0.523 318+0.022 732 x ₁+0.025 422 x ₂, R ²=0.419 2, P<0.01. The total yield loss rate and ear drop rate have an extremely significant positive correlation with lodging rate of plants at harvest stage（ P<0.01）,but grain drop rate was not significantly correlated with lodging rate of plants at harvest stage（ P>0.05）. There was no significant correlation between plant lodging rate and plant height,ear height,ratio of ear height to plant height,stem diameter,ratio of stem diameter to plant height（ P>0.05）. The primary and secondary index for the evaluation of maize varieties suitable for mechanical grain harvest were established,covering 3 levels and 55 index.【Conclusion】The evaluation index system of maize varieties suitable for mechanical grain harvest in Inner Mongolia was established.It takes into account the commonness and regional individuality of each ecological region,and the index is quantified and easy to operate. The provision of the “grain fragmentation rate” index points out the invisible loss in the process of mazie mechanical grain harvest,which makes the evaluation of yield loss more comprehensive.

Silage maize plays an important role in the development of animal husbandry.Germplasm resources,major characteristics and present silage maize breeding in China were reviewed.The breeding target of silage maize in the near future was proposed,and discussed the prospects for the development of silage maize to provide reference for future silage maize breeding.

【Objective】In order to effectively use herbicides for weed control,the herbicide resistant transgenic maize germplasm materials were cultivated,and the transgenic maize breeding technology was further improved.【Methods】Genetic transformation was conducted on immature embryos of callus induction of maize inbred line A188 by particle bombardment,which was carried out single factor test,the different size of immature embryo and concentration of herbicide were set respectively,and the callus induction rate was compared and analyzed.【Results】The results showed that the callus induction rate was the highest(93.3%)when the size of the immature embryo was 1.5-2.0 mm. When the concentration of bialaphos was 3 mg/L,it was the best screening concentration of herbicide. PCR detection proved that 5 positive transgenic seedlings were successfully obtained,and they showed strong glyphosate resistance in transgenic seedlings of resistance identification tests.【Conclusion】This study provides a reference for the establishment of maize genetic transformation system mediated by particle bombardment and for the cultivation of herbicide-resistant maize germplasm materials.

Sea buckthorn is widely planted in the northwest region of China,and its fruit contains abundant phenolic compounds,sugars,vitamins,etc. It has antioxidant and anti-aging,immune regulation,anti-inflammatory and anti-tumor,skin health and other effects. As a medicinal and edible plant,sea buckthorn fruit is used in industries such as food,medicine,agriculture,and animal husbandry. The article provides an overview of the chemical composition and pharmacological effects of sea buckthorn fruit,aiming to lay the foundation for further exploration and utilization of sea buckthorn fruit resources.

A lot of biological molecules are inside the cell, and they must be released from it. This is achieved by cell disruption .The paper Cell disruption of mechanical and non-mechanical technique and application were summarized. Features and problems of these techniques were discussed. In the end, the development of ultrasonic cell disruption technique was forecasted.

The rise of carbon dioxide concentration in the atmosphere is one of the main reasons for the greenhouse effect.The methods of carbon dioxide fixation were mainly studied in this paper,and put forward some methods and suggestions to strengthen carbon sequestration.The domestic and foreign carbon fixation methods mainly include artificial and natural carbon fixation.And the artificial carbon fixation includes physical carbon fixation method,chemical method and biological method.The artificial carbon sequestration method affects the balance of the ecosystem.The natural carbon sequestration includes forest ecosystem carbon sequestration,grassland ecology carbon sequestration and carbon sequestration in agricultural system.Natural carbon sequestration is a safe and effective carbon sequestration measure,but there are unreasonable land use and management.The agricultural carbon sequestration is the most practical and universal,and is most closely related to humans.It has the advantages of environmental protection and safety.The scope of agricultural production in our country is large,and the total amount of products is much.It impacts on the development of carbon sequestration deeply.However,the approaches improving the agricultural carbon sequestration efficiency also need to research.

The effects of five different land use types on physical and chemical properties of the saline-alkali soil in the Tumochuan plain,China,were analyzed by field soil sampling and laboratory experiment.Soluble salt content,composition of salt ions,and pH and alkalinity of soil profile were studied.The results showed that: soil salt ion composition and total salt content have obvious spatial distribution characteristics under different land use types.The total salt in the soil profile of pasture and forest land showed first an increase and then a decrease with increase in soil depth.Total salt in a wasteland and improved land soil profile decreased with increase in soil depth,and in farmland increased with soil depth.The distribution characteristics of soil pH,alkalinity and total alkalinity in the profile were basically the same in the five land use types.The degree of salinization and alkalinization declined in the order saline-alkali waste land > improved land > pastureland > forest land> agricultural land.The research results can provide a theoretical basis for the rational development and utilization in the Tumochuan plain.

In the genetic breeding of edible mushroom,protoplast fusion technology offers a lot of potential. It breaks through barriers across species,genera,and even families,allowing for the fusion and creation of new strains. It′s crucial for improving current edible mushrooms strains,developing new strains,and domesticating rare wild edible mushrooms. This paper reviewed current research progress in the influencing factors of protoplast preparation and regeneration,fusion methods,fusant identification methods and breeding of edible mushroom,in order to provide ideas and method basis for the genetic breeding of edible mushroom.

【Objective】To clarify potato blackleg disease source of infection in Ulanqab City,Inner Mongolia,and provide the basis for formulating effective prevention and control measures for potato blackleg disease.【Methods】The pathogen isolation,pathogenicity identification,molecular identification and soil survival tests of potato blackleg disease were carried out. Through pot experiment and field experiment,seven treatments were set up to investigate the occurrence of potato blackleg disease in the soil of continuous cropping land,seed potatoes of diseased land and diseased residues,and analyze and verify the differences in incidence rate of different treatments.【Results】The incidence rate of potato blackleg harvested in diseased areas and planted as seed potato over winter was 40.00%. Pectobacterium atrosepticum was isolated from the disease residue buried in soil after overwintering,and the incidence rate was 43.33% in the experiment of planting disease-free potato after the disease residue was planted in the disease-free soil. The incidence rate of disease-free potato was 6.67% in the previous diseased plots. The amount of pathogenic bacteria in unsterilized soil gradually decreased with the extension of time,and no longer survived after two months at normal temperature,and no longer survived after four months at -20 ℃. The results indicated that P. atrosepticum could survive the winter in the disease residual and become the primary infection source in the second year. The pathogenic bacteria in diseased soil were related to the occurrence of disease,but the bacteria free in cultivated soil could only survive for two months at natural temperature.【Conclusion】 The primary infection source of potato blackleg disease in Ulanqab City,Inner Mongolia is the infected seed potato and the disease residual after winter,and the amount of bacteria carried by the seed potato is an important factor affecting the occurrence of the disease.

In the process of plant growth,drought is an important factor restricting growth,development and yield.Humic acid （HA） plays an important role in many biological processes related to plant defense responses and morphological development.In this review,the effects of humic acid on plant morphology,physiology,biochemistry and molecular mechanisms under drought stress are reviewed.The effects of humic acid on the growth and development of plant roots and above ground plant parts under drought stress,and its effects at the plant physiological level on photosynthesis,osmotic regulation,antioxidative metabolism,hormones and mineral nutrition are discussed.The existing problems in the research of humic acid are summarized and the prospects for the application of humic acid in plant drought resistance are examined.

【Objective】 The spatiotemporal fusion technology was used to generate high spatiotemporal resolution images,which provides an idea and method for the research of crop type identification.【Methods】 Taking part of the Hetao Irrigation Area（40°10′N-41°25′N,106°23′E-108°47′E）as the study area,based on MODIS and Landsat fusion images,using enhanced adaptive reflectance spatiotemporal fusion model（ESTARFM）,to predict Landsat images and build NDVI time series image data set. Combining the ground sample data,the real image and predicted image data sets were imported into the random forest classifier,and the main crop types in the study area were compared and analyzed.【Results】 The ESTARFM model fusion image had a clearer spatial expression ability,the predicted image and the real image had a better correlation between the bands,and the R value could reach more than 0.6. The overall accuracy of crop type identification using NDVI time series prediction image data set was 93.03%,which was 12.07% higher than the real image accuracy,and the Kappa coefficient was 0.89.【Conclusion】 The ESTARFM model could effectively solve the difficulty of image missing in a specific window period of crops,and provide a better application method for crop type identification research.

Saline-alkali land is an important reserve cultivated land resource in China. The development and utilization of saline-alkali cultivated land has important practical significance for meeting population and food needs of as well as agriculture long-term sustainablility. Straw returning can improve soil structure and fertility,improve the quality of cultivated land,and reduce the salt accumulation in topsoil,making it an effective measure for improving saline-alkali soil. This paper summarized the current state of domestic straw returning technology,explained the principle and application of straw returning technology to improve saline-alkali soil,and discussed the effects of improvement on saline-alkali soil from the aspects of soil physical properties,chemical properties,biological characteristics and crop yield. The impact of improved saline-alkali straw returning technology application foreground was prospected.

The leaf chlorophyll content of maize is used to characterize crop growth status，nitrogen nutrition and health status，and is an effective indicator for crop growth evaluation and production potential evaluation. The article summarized the vertical distribution research methods，vertical distribution characteristics，and causes of vertical distribution patterns of maize leaf chlorophyll content in different leaf positions，in order to provide theoretical support for exploring the research methods of maize leaf chlorophyll content vertical distribution.

Based on the historical literature, meteorological, farming foresting pastnring production,the data are analysed and compared, by the method of mathematical statistics, analysed natural resources of farming foresting pastnring interlaced zone of, advantage of climate resources, puts forward the climate resource potential, provide a scientific basis to promote the healthy development of ecological environment and revitalize the local econom.

【Objective】 According to the ripening period of common maize and the quality demand of maize starch deep processing market,the breeding of new varieties with high starch type was carried out in order to alleviate the problems of mixed varieties and uneven quality in Inner Mongolia maize market.【Methods】 Maize hybrid breeding technique,multi-point identification and traditional maize cultivation techniques were combined.【Results】 The Neidan 35 was bredtest was conducted by crossing wih M10ND101 as the female parent and MXZJ853 as the male parent,and the hybrid intra-variety 35 was selected.In 2015,Neidan 35 was repeated seven times at six appraisal sites in Hohhot,Chifeng,Tongliao,Baotou,Bayannur and Ordos,with an average yield of 12 910.5 kg/hm ²,an increase of 7.61% over the control Jinshan 33,a significant increase in yield,and samea grain moisture content.That was basically the same as that of the control variety.In the Montco jade consortium trial in 2016—2017,in which the average yield of the production trial was 11 356.5 kg/hm ²,an increase of 6.25% over the control;the reproductive period was 128.4 d.As determined by the Ministry of Agriculture and Rural Affairs Grain Quality Supervision and Inspection and Testing Center,the starch content of the maize variety 76.86%,as a high-starch maize varieties;diseases resistance identification results were the following：for the sense of large spot disease（7S）,resistance to leaf spot curvature（5MR）,resistance to silk black ear disease（7.1% MR）,resistance to stem rot（14.7% MR）,resistance to maize borer（3.9R）.In the planting process,pay attention to the amount of water and fertilizer to prevent large spot disease.【Conclusion】 The new maize variety Naidan 35 is high-starch varieties, under ripe conditions,the starch content of the maize variety was 76.86%,it was approved by the Inner Mongolia Variety Approval Committee in 2018, and suitable in the areas with above 2 650 ℃（an≥10 ℃ active cumulative temperature）in Inner Mongolia.

【Objective】 To comprehensively understand and analyze the development process of Orthoptera insect taxonomy research,and provide reference for relevant scientific researchers.【Methods】 The data sources were the 1750—2000 Orthopteran insects taxonomy literature entries included in the Bibliographia Systematica Orthopterorum Saltatoriorum and the 2001—2019 Orthopteran insects taxonomy literature entries included in the Orthoptera Species File website,and the EndNote software was used to establish an Orthopteran insects taxonomy literature database,and based on the R language,the statistical analysis was carried out from three aspects：the distribution of annual literature,the amount of articles published by authors,and the amount of articles in source journals.【Results】 The taxonomy research of Orthoptera insects has gone through four development periods：budding period（1750—1778）,initial development period（1779—1829）,slow development period（1830—1947）and rapid development period（1948—2019）. There were a total of 281 core authors,of which 10 were high-yield core authors,and the Chinese entomologist ZHENG Zhemin published the most articles.From the distribution of source journals,a core journal group composed of 14 journals including Zootaxa, Journal of Orthoptera Research, Bulletin de la Société Entomologique de France, Articulata and Entomological News has been formed,among which Zootaxa was the largest number of articles.【Conclusion】 From 1750 to 2019,the number of articles on the taxonomy research of Orthoptera insects showed a fluctuating upward trend. At present,a stable core author group and core journal group have been formed.

【Objective】To screen varieties of dryland spring maize suitable for planting in Shanxi Province.【Methods】From 2020 to 2021，four spring maize varieties with good growth and high yield were selected as experimental materials and tested at two test sites of Chaoyang Town，Shouyang County and Dongyang Town，Yuci District in Jinzhong City. Using single factor randomized block design，the agronomic traits，photosynthetic characteristics，and dry matter accumulation of spring maize varieties were compared and the correlation analysis on yield and yield components were performed.【Results】At the test site in Chaoyang Town，Shouyang County，Dafeng 30 and Dika 159 had excellent agronomic traits，strong photosynthetic characteristics，high dry matter accumulation in leaves and panicles，and low dry matter accumulation in stems. The average yield increased by 3.59% and 1.70% compared to Taiyuan No. 9（CK），respectively. At the test site in Dongyang Town，Yuci District，the photosynthetic characteristics and dry matter accumulation of Dafeng 30 were significantly higher than those of Jindan 86 in the early growth stage，while there was no significant difference between the two in the later growth stage. Compared with Jinboshi 806（CK），the average yields of Dafeng 30 and Jindan 86 increased by 4.13% and 3.69%，respectively. The yield of spring maize was negatively correlated with bald tip length，but positively correlated with ear length，number of grains per ear，100-grain weight，and yield per plant.【Conclusion】Dafeng 30，Dika 159，and Jindan 86 were suitable for large-scale demonstration and promotion planting in the dryland spring maize planting areas of Shanxi.

【Objective】To explore the effects of different microbial agents on potato growth and development and soil nutrients in potato fields,so as to provide a reference for green and sustainable potato planting in Inner Mongolia.【Methods】Potato V7 was used as the test material,by setting distilled water（CK）,applying Bacillus sp. 188 bacterial agent（T1）, Pseudomonas sp. BP16 bacterial agent（T2）,and Streptomyces rochei D74 bacterial agent（T3） four treatments to soak the seeds for 30 min. Potato yield,tuber starch content,dry matter mass of each organ,nutrient accumulation per plant,leaf chlorophyll content,nitrate reductase activity,soil ammonium nitrogen,nitrate nitrogen,available phosphorus and available potassium content were measured at different growth stages after potato planting.【Results】After 110 days of potato planting,compared with CK,the yield of potato in T2 and T3 treatments was significantly increased by 7.14% and 9.16%（ P<0.05）,the starch content of tubers was significantly increased by 11.84% and 16.38%（ P<0.05）,the dry matter mass of potato roots,stems,leaves,and tubers were significantly increased by 26.87%,16.92%,11.77% and 13.59% by T3 treatment（ P<0.05）,the accumulation of nitrogen,phosphorus and potassium in plants was significantly increased by 28.86%,32.78% and 30.81% by T3 treatment（ P<0.05）. After 70 days of potato planting,the chlorophyll content in potato leaves treated with T3 treatment was the highest [4.29 mg/（g·FW）],and the nitrate reductase activity in the leaves was significantly increased by 15.29% compared to CK（ P<0.05）. After 50 days of potato planting,the soil nitrate nitrogen content in T3 treatment reached its maximum value（42.32 mg/kg）,the available phosphorus content significantly increased by 26.17% compared to CK（ P<0.05）,and the available potassium content in T1 and T3 treatments significantly increased by 24.95% and 21.65% compared to CK（ P<0.05）,respectively.After 70 days of planting,the soil ammonium nitrogen content in T2 treatment significantly increased by 47.03% compared to CK（ P<0.05）.【Conclusion】Soaking seeds with Streptomyces rochei D74 microbial can increase potato yield,tuber starch content,dry matter mass of each organ,plant nitrogen,phosphorus and potassium accumulation,at agent tuber formation stage,the leaf chlorophyll content at maturation stage,soil nitrate nitrogen,available potassium,available potassium content at early growth stage,soil ammonium nitrogen at agent tuber formation stage. It can be used as a suitable microbial agent for potato cultivation in Inner Mongolia Autonomous Region.

Development and use of renewable energy for sustainable development of China＇s construction of the energy strategy is of great significance.In this paper,we do a relatively comprehensive analysis on the significance of the development and use of renewable energy, discuss to ease the pressure of China＇s energy demand,improve energy structure, achieve sustainable energy use and sustainable economic and social development of renewable energy development and utilization of the practical needs and the possible path ：Finally we point out that the development of renewable energy is the important initiatives and effective ways for China＇s economic and social sustainable development.

After the construction of urban wetland park in recent years has demonstrated its significant ecological value and economic value.Some problems emerged in management have affected the development of urban wetland park itself.Corresponding countermeasures are proposed by discussing problems of urban wetland park in management for experience and reference.

Bacillus megaterium is a beneficial kind of functional bacteria,it is widely concerned and deeply studied because of the advantages of environmental friendliness,food crop safety,harmless to human and animal and so on. The research status of Bacillus megaterium on phosphate-solubilizing, biological control,water purification Exogenous gene expression and so on were summarized in this paper,it would provide the theoretical basis for further study of Bacillus megaterium.

【Objective】 In order to clarify the best cultivation pattern of soybean in the southern foothills of Daxing′Anling in Inner Mongolia,and provide technical support and theoretical basis for soybean dense-planting cultivation in this area. 【Methods】 In 2017—2019,Mengdou No.13 was used as material,and three cultivation patterns of soybean were set as experimental treatments：planting on wide and high ridge,and three rows of ridge （110 cm wide ridge,RBH）,three rows of narrow furrow and dense-planting of ridge（three rows on 65 cm ridge,RNC）,and three rows of ridge cultivation（double rows on 65 cm ridge,CK）. The agronomic characters,SPAD value,leaf area index,dry matter accumulation and yield index of soybean were analyzed,the efficiency and income were calculated through the input-output accounting.【Results】 There was no significant difference in nutrient growth days,reproductive growth days,growth period and nodes number of main stem among the treatments（ P>0.05）. The plant height and bottom pod height were RNC>RBH>CK. The effective branch numbers of CK was significantly higher than that of RNC and RBH（ P<0.05）;SPAD value showed RBH>RNC>CK and increased gradually with growth period. At flowering period（R2）,pod setting period（R4） and seed filling period（R6）,SPAD value of RBH was significantly higher than RNC and CK（ P<0.05）. Compared with CK,SPAD value of RBH increased 9.3%,7.0% and 8.6% respectively in 3 years. Leaf area index（LAI） increased gradually with growth period,maximum value of LAI reached at seed filling period,and then decreased gradually,the results showed RNC>RBH>CK and RNC increased LAI most significantly. Dry matter accumulation as RBH>RNC>CK and increased gradually with growth period. Pod number per plant,seed number per plant and seed weight per plant showed RBH>CK>RNC. No significant difference for 100 seed weight（ P>0.05）. The theoretical yield and actual yield of soybean under different cultivation patterns showed RBH > RNC > CK, and there were significant differences among different treatments（ P<0.05）. The theoretical yield and actual yield of soybean under RBH increased significantly and increase 665.2 kg/hm ² and 403.0 kg/hm ² respectively compared with RNC and CK in 2019. The income under different cultivation patterns showed RBH>RNC>CK,and the average income of RBH and RNC increased by 18.00%（1 392.0 yuan/hm ²）and 2.67%（190.4 yuan/hm ²）compared with CK.【Conclusion】 RBH（110 cm wide ridge） cultivation pattern for increasing soybean yield and efficiency in the southern foothills of Daxing′Anling in Inner Mongolia.

＂Superbugs＂ is a general term of multi-drug resistant bacteria. The new type of ＂superbugs＂ is a bacteria with resistance gene new delhi metallo-β-1aetamase-1. Recently, researchers have found that plasmids carrying a new metallo-β- lactamase gene, blaNDM-l,and many other antibiotics resistance genes can easily spread through bacterial populations and almost all β-lactam antibiotics could be hydrolyzed, It is a threat to the human health. The new ＂superbugs＂ and its route of spread as well as a preventive measure against ＂superbugs＂to respond the attack of ＂superbugs＂ on mankind were introduced in this paper.

Quinoa has multiple health effects such as antioxidant,anti-cancer,anti-allergy,sugar control,lipid regulation,cardiovascular and cerebrovascular protection,etc.Quinoa is a multi-grain food with full nutrients,high biological activity and multi-health functions,and has a large development space. This paper reviews the protein,amino acids,unsaturated fatty acids such as linoleic acid and linolenic acid,complex vitamins such as vitamin B ₂,vitamin B ₆,and folic acid,minerals such as Mg,Zn,and Fe,and bioactive substances such as polyphenols,flavonoids,saponins,and polysaccharides in quinoa,and analyzes other functions and development prospects of quinoa. And put forward the scientific and technological research suggestions of quinoa in the big health industry.