Abstract:Based on the data statistical analysis,correlation analysis and grey relational analysis method,27 varieties were used to explore the correlation of agronomic traits and yield on mung bean.The results showed that variable coefficient of different traits vary widely,they arrange from big to small as follows:branch number of main stem,pods of per plant,grain weight of per plant,yield,later growth stage,plant height,hundred-seed weight,growth days,earlier growth stage,pitch number of main stem,grain number of per pod,pod length.Test of significance showed that mung bean yield was significantly positively correlated to pods of per plant,grain weight of per plant,later growth stage,branch number of main stem,growth days as well as grain number of per pod these 6 agronomic traits,positively correlated to pod length and earlier growth stage,while it was significantly negatively correlated to hundred-seed weight.The correlation degree of agronomic traits and yield in mung bean from big to small was pods of per plant,grain weight of per plant,later growth stage,branch number of main stem,growth days,grain number of per pod,earlier growth stage,pod length,plant height,pitch number of main stem and hundred-seed weight sequentially.On the whole,in order to generate high-yielding mung bean,plants that having more pods and pitches,higher grain weight and longer later growth stage should be selected,so as to provide more suitable mung bean variety for northwestern Shandong province.

The experiment were conducted to study the effects of mechanized subsoiling and rotary tillage cultivation technology on topsoil water,bulk density,leaf area index,dry matter accumulation,yield and yield factors.The results showed that the effect of subsoiling technology is superior to shallow tillage.Subsoiling could increase soil water more than rotary tillage before maize seeding and after harvest.The soil bulk density of subsoiling was significantly lower than shallow tillage in15~35 cm except 0~15 cm soil layer.In corn jointing stage,silking stage and the milk stage,compared with the shallow tillage,the root dry weight in 0~40 cm soil layer,aboveground dry matter weight,leaf area index in subsoiling were increased.Subsoiling effectively disrupted the plough pan and improving capacity of water storage,water retention in soil.Subsoiling could prompt the root growth and increase the absorptive capacity of maize roots,and thus thick with leaves and deep-rooted,root cap coordination,which increased of 14.40%hundred grain weight,the yield increase of more than 9.07%shallow tillage.

Based on introducted three Avena sativa varieties,comparative analysis of each varieties at different growth stages of agronomic characters and nutritional value to explore suitable cultivars of Hinggan League region.The main conclusions were as follows:introduction of two varieties were suitable to be grown in Hinggan League region,which had the moderate growth period,strong resistance,high yield and stable.The baiyan No.7 was better,its grain yield was higher than control variety of 62.7%with 3 611.7 kg/hm2.The grass yield and hay yield of milky maturity stage were higher than control variety of 72.8%and 43.0%.The palatability and digestive rate of baiyan No.7 were relatively high,and it had high yield and good quality.

Introduced the concept of genetic-the coefficient of coincidence to DUS Testing,the differentiation between maize standard varieties'expression was commented in Mengninggan ecoregion and test guidelines,which is in order to perfect the guidelines of maize and accumulate datum for constructing the DUS testing system of Mengninggan ecoregion.The results shows that the differentiation of COC was less than 0.05 except Danyu13,Benyu9,Huangzaosi,Shen5003 and P138;twelve resources'COC were 1 which is include CA335,F31,Huobai,Shennong92-67,8902,B73,DH14,X178,Wu314,Qi319,4F1 and Shen137.The COC of 8 measure traits were 1(Including Character26.1)and 2 measure traits less than 0.95(Including Character29.2).The other rest of the accord with coefficients was between 0.95 and 1;the COC of qualitative traits were greater than quantitative trait and 0.98.

It is a key issue for improving crop yield and water use efficiency per unit area is a long-term commitment to improving and responding to arid agriculture,The furrow ridge technology effectively solves the problem of drought on the basis of traditional farming.This article summarized the development of technology of plastic film mulching and furrow planting cultivating techniques in raising temperature keep moisture,improve photosynthetic performance,improve soil quality and crop production.It pointed out that the furrow mulching cultivation technique was not enough in the aspects of premature senescence,soil residual film pollution,soil fertility overrun,increase production cost and so on.It is not only important to pay attention to the coupling relationship between soil moisture,temperature,fertility and crop yield formation,but also to research and development of environment-friendly plastic film and plastic film recycling equipment,further improve the furrow coating technology,and provide some research direction and reference for scientific research workers.

Aiming to uncover the principle of different ratio of BB fertilizer about N,P2O5,K2O in the wheat yield,using randomized block design,the effects of BB fertilizer under 5 different ratio were researched in the village of Dongnan,Shuiguo town,central district of Zaozhuang city in 2013.Moreover,the changes of leaf area index under the action of BB fertilizer were discussed.The results showed that the BB fertilizer can improve leaf area index of wheat as base fertilizer and the yield of wheat was increased.It had the best effect according to 375 kg/hm2 N,165 kg/hm2 P2O5 and 150 kg/hm2 K2O,and the range of increased yield reached to 16.9%.

The best water-saving model and the appropriate irrigation amount of maize was explored under the climate condition in Tongliao by comparing and analyzing the effects of different water-saving models on maize yield.The relationship between maize yield and water-saving effect under different water-saving model s were analyzed according to contrast experiment of shallow subsurface drip irrigation without mulch(SI),pipe irrigation(PI)and drip irrigation under mulch(DI).The results showed that the sort of maize yields under different water-saving models was DI 235 mm>SI 235 mm>SI 300 mm>SI 170 mm>PI 280 mm>SI 105 mm>SI 40mm.SI 235 mm was the best water-saving model,and the total water requirement from sowing to maturity was 505.2 mm,the total water drop is 235.0 mm.SI 235mm had water conservation 45 mm,and the saving water rate was 16.07%compared with PI;the cost of mulch was also saved compared with DI,thereby realizing zero pollution.

The test selects white clover as male and caucasian clover as female F1 lines,different nitrogen and potassium treatment,to observe the root of different nitrogen and potassium responses for nitrogen and potassium for plant root growth.The results showed that root length,root diameter and root surface area were determined at the same time,found that parents and hybrids in the absorption of potassium ions may be affected by the nitrogen.When nitrogen level was N2 and N3 and K level for K2 and K3 treatment root indicators showed a maximum value.Under the interaction of nitrogen and potassium,F1 and parents showed that the indexes of root system were best under N3K2 treatment.

This study conducted compared experiments about the fertilizer effects of different combinations of nitrogen(N),phosphate(P)and potassium(K)fertilizers under high-density maize planting condition(double plants in one point)and conventional planting condition(single plant in one point).The results showed that the yields under high-density maize planting condition(double plants in one point)were higher than the yields under conventional planting(single plant in one point)of similar combinations of N,P and K fertilizers.And the yield under 4th combination of enough N,P and K fertilizers(N2P2K2)increased most.The comprehensive effect of N,P and K fertilizers under high-density maize planting condition(double plants in one point)was 42.6%higher than that under conventional planting condition(single plant in one point),and N fertilizer effect was 29.2%higher;P fertilizer effect was 22.5%higher;K fertilizer effect was 14.5%higher.And agronomic efficiency of the N,P,K fertilizers under high-density maize planting condition(double plants in one point)were 10.5 kg/kg,12.7 kg/kg and 25.8 kg/kg higher than that under conventional planting condition(single plant in one point).These results proved the fertilizer effects under high-density maize planting condition(double plants in one point)was very significant higher than those under conventional planting condition(single plant in one point).Under the experimental conditions,the utilization rate of N,P,K fertilizers under high-density maize planting condition(double plants in one point)were 8.14%,5.27%and 1.99%than that under conventional planting condition(single plant in one point),respectively.

Potato residue as raw material,water as solvent to synthesize carboxymethyl potato residue,Soil Water-retaining agent was synthesised by Crosslinking Agent N,N-methylenebisacrylamide and K2S2O8-NaHSO3 redox initiation system with Carboxymethyl Potato Slag Grafting Monomer Acrylic Acid and Acrylamide.The properties of liquid absorption,water retention and repeated water absorption were studied.The products were characterized by scanning electron microscopy,XRD.The results showed that the optimum conditions of the soil water-retaining agent were as follows:the mass ratio of monomer to carboxymethyl potato residue was 6∶1;the ratio of acrylamide to acrylic acid was 6∶1;the degree of neutralization of acrylic acid was 70%;the amount of crosslinking agent was 0.16%;the amount of initiator was 0.83%;product water absorption was 1 550g/g.The best product was dried in a vacuum oven for 15 h which water retention rate remained at around 68%,to centrifugal 1 h,water rate was about 74%.

In order to screen the biocontrol strains suitable for the late blight of potato in Inner Mongolia,a strain with pathogens resistant to Phytophthora infestans was obtained from the desert soil of western Inner Mongolia.The strain was analyzed by 16S rDNA sequence and it was near Brevibacillus formosus.The results showed that the strain had good inhibitory effect on Phytophthora infestans by plate experiment,potato leaf in vitro experiment and potato tuber in vitro experiment,and had further research value.

For screening the safe and effective drugs of leek maggots,to compare the 20%of imidacloprid·Phoxim EC,1.8%of AvermectinsEC,2%of granular imidacloprid GR and 40%of PhoximEC,to select a suitable and safety pesticide of leek production by filling root test,the security clearances pesticide residues of four kinds of pesticides were determined.The result showed that the four kinds of pesticides had better control effect and lasting period on leek maggots,the drug control effect was achieved 70%after 21 days of test.The sampling determination of pesticide residues results at safety interval showed that the residue of 2%of granular imidacloprid GR was overproof at 22.5 kg/hm2,the other three kinds were within the scope of security.Considering the control effect,keeping strain effect and pesticide residues situation,the 1.8%of AvermectinsEC,the 2%of granular imidacloprid GR and the 40%of PhoximEC can be alternate used,to be as the prevention and treatment of leek maggots.It should be appropriate to reduce the 2%of granular imidacloprid GR dosage in the practical.

The European sunflower moth(Homoeosoma nebulellum Hübner)is the most serious pest on sunflower seeds resulting in serious yield losses and quality decline of sunflower.To explore the variation in chemical components from volatiles of different resistant sunflower accessions to sunflower moth,the volatiles from the sunflower heads were collected by solid-phase microextraction(SPME)and analyzed by GC-MS.The main results were as follows:the volatiles from sunflower head were identified with terpenoid compounds as the main components accounting for above 90%,such as alpha-pinene,calamine,sabinene,beta-myrcene,limonene,camphene,etc.;and with a few amount of alcohols,heterocyclic compounds,alkanes and easters.9 different kinds of compounds were indentified in resistant oil accession of S31(such as bicyclo[3.1.0]hex-2-ene,2-methyl-5-(1-methylethyl)-,bicyclo[3.1.1]hept-2-ene-2-methanol,6,6-dimethyl-,etc.)whereas they were absent in susceptible confectionery accession of 3638C.Moreover,Terpenoid compounds and relative content in S31 were less than that in 3638C.The relative contents in compounds of beta-pinene,ethanol and bornyl acetate were higher in S31 than that in 3638C.These results will help to reveal the main active components in host plant orientation for sunflower moth and provide the basis for exploiting new control methods in future.

Monitoring the soil heavy metal pollution degree is an important part of the wetland protection work.20 soil samples in the Sorci wetland park were tested,through the determination results,using cumulative pollution index method and Hakanson potential ecological harm index method the heavy metal content and the status of the pollution were analyzed,for the Sorci wetland park ecological protection decision providing scientific basis.The testing result of pH value and heavy metal content in the soil of Sorci wetland park showed that soil pH value between 4.86 and 6.12,the scope of soil heavy metal element content respectively were Pb 0.41~5.05 mg/kg,Zn 0.53~2.66 mg/kg,Cu 0.83~3.46 mg/kg,Cd 0.127~0.221 mg/kg,As 1.6~8.7 mg/kg,Hg 0.029~0.130 mg/kg,Cr 60.0~284.5 mg/kg in the study area.The average of heavy metal elements Pb,Zn,Cu,Cd,As,Hg,Cr respectively were 1.80 mg/kg,1.52 mg/kg,1.72 mg/kg,0.177 mg/kg,5.3 mg/kg,0.087 mg/kg,170.7 mg/kg.Potential ecological risk index of uniterm heavy metal elements value E under 40 belong to low grade pollution,comprehensive potential ecological harm index RI value under 150 of 7 kinds of elements,it was identified as low grade pollution.

There are rich of butterflies in the Da Liangzi River National Forest Park,while some of them are endangered as the environmental reasons.Through investigation of the distribution of endangered butterflies in four different ecological environments in the Da Liangzi River National Forest Park,survey collected a total of 38 endangered butterflies which were 7 families 22 genera and 22 species,and the order of diversity of four habitats was:meadow>shrub>forest margin>wetland.This study will provide a technical reference for the analysis of the diversity distribution of endangered butterflies in the original forest area and the protection of endangered butterflies.

Mainly using secondary recycled water of Hohhot Zhanggaiying sewage treatment plant as the research object,on the basis of a large number of reclaimed water quality testing,the factor analysis method of dimensionality reduction and score function were used to carry on the reasonable evaluation and explore the seasonal variation characteristics,and put forward the reasonable use way of recycled water.The results showed that:the reclaimed water quality in summer was significantly better than that in other seasons,and reclaimed water had obvious seasonal and dayly instability.Sewage water was better in summer than in winter and seasonal fluctuations were obvious.This paper gives the efficient and reasonable utilization suggestions for the using of reclaimed water in Hohhot.

Based on the data of crop planting area and precipitation between 2003 and 2012,the different crop(corn,wheat,cotton and sugar beet)water demand and water consumption were analyzed.The results showed that:The total amount of water of cotton in the 4 crops was the largest,followed by wheat and corn,and the total amount of water in sugar beet was the minimum.The annual water demand of economic crops was significantly higher than that of grain crops.Total annual water demand of crops showed an increasing trend between 2003 and 2012.For many years the average crop water requirement was 1.87×108 m3,and it was the lowest in 2007,it reached the maximum in 2012,which was 2.75×108 m3.In consistent with crop water demand,the total annual water consumption cotton in the 4 crops was the largest,followed by wheat and corn,and the total water consumption of sugar beet was the smallest.The total annual water consumption of crops showed an increasing trend between 2003 and 2012,and the average crop water consumption was 2.07×108 m3.Among them,crop water consumption was the lowest in 2003,and reached the maximum in 2010.The crop water consumption in the study area was consistent with the crop water requirement,which can meet the needs of crop growth,but crop water consumption was different in different regions of the same latitude.

A polyvinyl alcohol-degrading enzyme producing strain of a Janthinobacterium sp.,which can use polyvinyl alcohol as sole carbon source,was isolated from Daihai.Morphological characteristics and 16S rDNA verifies that it belongs to Janthinobacterium sp.The crude enzyme solution degrading polyvinyl alcohol(PVA)was extracted from the fermentation broth of the strain.The enzymatic properties of the extracted enzyme were analyzed,and their distribution and suitable environmental condition were studied.The results showed that PVA-degrading enzyme was distributed both inside and outside the cell,with most being secreted outside the cell.The optimum reaction conditions of the enzyme were:PVA 1.0 g/L,pH 6.5,temperature 45℃.The enzymatic activity at pH 6.5,35℃was relatively stable.The crude enzyme presented PVA degradation rates above 82%after 10 h of reaction.

Based on the the field data of spring wheat and climate data covering the period from 1981 to 2010,correlation analysis and Stepwise regression method were used.The result showed that the wheat field was mainly determined by sunshine hours of filling stage,the temperature of sowing date and wind velocity of emergence stage which played a secondly role on the yield formation of wheat.An equation was elucidated by the meteorological factor and climatic yield.Test results showed that the precision was more than 90%.

4 years old dwarfing intermediate stock Yanfu 3 and Tianhong 2 apple trees were used to study the influence of different load to the tree growth,fruit quality and yield.The result showed that the load on tree height,crown diameter,shoot length and trunk circumference was not significant.With the increase of load,fruit weight,fruit shape index,fruit coloring area and smoothness became smaller,the content of soluble sugar reduced,but fruit firmness and titratable acid content had no significant change.The higher fruit load,the more serious of fruit dropped,so actual harvesting fruit number and actual output were much lower than expected.According to the comprehensive analysis,treatment 3 and 4 were more suitable load levels,and the yield was 30 000~33 750 kg/hm2.

The mushroom residue plays an important role of form a complete set of application technology in horticultural crops planting and seedling.Using mushroom residue as material in this experiment,mixed the mushroom residue,perlite,vermiculite for tomato seedling were researched.The results showed that the mixed matrix with perlite∶mushroom residue:vermiculite ratio at 1∶1∶1 for cultivate tomato for seedling emergence rate,plant height,stem diameter,leaf area,dry and wet weight on the ground,dry and wet underground were higher than control with significant difference.It was the best matrix formula of tomato seedlings cultivation.The results provide scientific basis and technical indexes for application of mushroom residue on tomato seedling.

Portulaca grandiflora hook of the family of purslane,which is an annual or perennial fleshy herb,not only has high ornamental value,but also has medicinal efficacy and health care value.In this paper,the shoots of Portulaca grandiflora hook were used as explants,and the shoots were harvested by axillary buds.The optimal concentration of PGR and the best PGR in buds were induced by budding with 0.1%mercuric chloride 5.5 min to disinfection and in the medium with the ratio of 2.5 mg/L 6-BA and 0.1 mg/L NAA,the highest number of shoots was the highest,and the induction rate of buds was the highest when PGR had 0.5 mg/L NAA.

Ginkgo is a traditional Chinese medicine plant sources,ginkgo leaves in spring as explants,through the establishment of suspension cell culture system,was studied to explore the effect of different concentrations of rare earth cerium(Ce3+)on mineral ions,chlorophyll and flavonoids in suspension cell.The results were that appropriate concentration of Ce3+in Ginkgo biloba L.suspension cells can promote the accumulation of a variety of mineral elements.With the increase in Ce3+concentration,K+,Ca2+,Fe2+,Mg2+content and other element had significant upward trend;when Ce3+concentration was 0.1 mmol/L,other element concentration were to the highest,then declined.With the increase of Ce3+concentration,carotenoid and chlorophyll content were significantly increased.And when the medium Ce3+concentration is 0.1mmol/L,chlorophyll content was the highest.Culture concentration 0.10~0.50 mmol/L Ce3+can significantly improve the flavonoid content,a high concentration(2.00~5.00 mmol/L)Ce3+were significantly decreased flavonoid content.The results of this study showed that cerium can increase mineral accumulation and flavonoid content of Ginkgo biloba L.cells,and improve the growth of Ginkgo biloba L cells.

Pleurotus ostreatus residue is rich in amino acids,proteins,polysaccharides,calcium,phosphorus and trace elements and has high use value.Scientific and rational exploitation and utilization of the resources of residue can not only transform waste into treasure,reduce environmental pollution,but also reduce costs and improve economic benefits and have a broad application prospect.The Pleurotus ostreatus residue nutrients and comprehensive utilization of research status were summarized and concluded,and the comprehensive reuse of Pleurotus ostreatus residue foreground was prospected.

Tagetes patura is a kind of annual herbage of Asteraceae.Tagetes patura has so excellent ornamental characteristics that widely being used in flower beds and gardens.This article gave a summary to its researches on its genetic characteristics,breeding,cultivation,stresses resistance,allelopathy and some other aspects.The objective is to provide some kinds of references for further researches on Tagete spatula and to put forward the outlook of its further researches.

Whether the policy agricultural insurance can stabilize grain production,on the basis of combing the literature review,and using improved CobbDouglas production function to analyze,under the condition of traditional factors affect grain production,the policy agricultural insurance was introduced,combined the panel data of Inner Mongolia in 2007-2015,the relationship between agricultural insurance and grain production was verified with fixed effect model.The results showed that it has a positive influence on grain production on 10%level.

Urban agriculture has developed rapidly in China since its introduction from western countries.Location environment,urban agriculture development,development characteristics were analyzed respectively,selecting the representing part area of urban agriculture and drawing distribution map,analyzing and summarizing the overall urban agriculture development and distribution characteristics,and contrasting latest urban modern agricultural planning with development distribution map of the drawing,looking forward to the future development of urban agriculture in Qingdao.