High starch maize hybrid Si-dan 19 was used to investigate the effect of population density （45000,60000,75000, 90000plants/hm2） on assimilates accumulation and transformation at grain filling stage in cold region.The results showed that： Increasing of starch contents are similar to decreasing of soluble sugar contents with the increasing of plant density,which indicated that soluble sugar transformed starch. Free amino acid contents and slouble protein contents are unacted on plant density at grain filling stage.At early grain filling stage fat contents decreased,but at mid-late grain filling stage fat contents increased with the increasing of plant density.

A scheme of orthogonal test, which includes 4 factors and 3 levels, was designed, in which Maize Varieties,Sowing date,Density and fertilizer Varieties and Quantity. The results show that the technical formula for the Maize variety ＂Chidan 202＂which reached above 734.5 kg per 667m2, has been designed as： sowing on May 5,3600 plants per 667m2,and appling urea fertilizer 30kg per 667mE.The technical formula for the Maize variety ＂Chizao 5＂ which reached above 692.3 kg per 667m2,has been designed as： sowing during April 25 to May10,3600 plants per 667m2, and appling urea fertilizer 40kg per 667m2.The technical formula for the Maize variety＂Chidan 661＂which reached above 784.5 kg per 667mE,has been designed as：sowing on May 5,3200 plants per 667m2,and appling urea fertilizer 40kg per 667m2.

314A was the result of selective breeding by Seed Farm at Aohan Banner, Chifeng, Inner Mongolia Autonomous Region.With the traits of dwarf plant,stable sterility, short growth period,good combining ability etc.this paper gives Breeding and the Characters of 314A and the Characters of derived hybrid of 314A.

The studies on effects of planting dates to yield and quality of B.juncea Czern Coss.Spring rape were conducted.The results showed that mid-April to early May sowing could not only increase the spring rape yield but also improve the quality and induced the incidence of the spring rape.Delayed sowing, the post of growing meet the hot and rainy weather, incidence of spring rape obvious increased,seriously affect the yield and quality.but,because the temperature rise,emergence speed up,Timely sowing in the local is one of the measures to ensure high yield production.

Eleven Varieties of Mung Bean were used in this study to conduct a analysis on main economics characters relevant to grain yields.The results show that： increase of plant pod numbers and improvement of plant height was advantageous to increase of grain yields.Grain yields was improved with increase of days of flowering to bearing pods.Grain yields was reduced with increase numbers of first branchy stem. Reduction of days of bearing pods to ripening was advantageous to increase of grain yields.Betwee grain yields and others characters was small relations.and selecting height plant and increasing numbers of bearing pod was effective ways to improve grain yields.To increase days of flowering to bearing pods could improve grain yields.To reducing days of bearing pods to mature period and numbers of first branchy stem could indirectly improve grain yields. Varieties of mun~ beans nlantin~ in the .linbei area was suitable for Zhen~lv No.9.Tao 9947-6.Fenlvdnu Nn_2.

This research carried out an experimental study on the efficiency of ＂one mulching film for two years＂ in growing sunflowers,corn and potatoes.The result shows that sunflowers should not be repeatedly cultivated in ＂one mulching film for two years＂ in the way of double ridges covered by a whole film.To save energy and enhance efficiency,the optimize choice should be corn,and the second choice should be potatoes.

From 2010 to 2011, a variety test on 18 domestic and overseas alfalfa varieties such as Golden Queen, Three Profits and Farmers was conducted on the moderate saline-alkali land in Datong Basin. The germination rate, emergence rate and fresh forage yield of various varieties were compared. The dry weight/fresh weight ratio of forage for each variety was determined in 2011, and a comparative analysis was conducted to the dry forage yields of the varieties. The results showed that Golden Queen, Three Profits and Farmers had good adaptability for cold and salinity resistance and obvious yield-improving strength in moderate saline-alkali soil. Therefore we suggest that Golden Queen, Three Profits and Farmers be wildly promoted in mild to moderate saline-alkali soil in Datong Basin and other areas, so as to raise the effectiveness of cultivation.

This were carried out six times of channel catfish （letalurus punetaus） fry Wu Tsai, summer flowers transport test, fry shipment using conventional transport fry bags （70cmx40cm）,outer packing respectively using common packaging carton and foam packing two packaging, transport mode for ground vehicle aircraft flown and the combination of the long-distance transportation test, loading density were 8000 tail/box and 3000 tail/box,all achieves 92% above,proof of the use of plastic bags long-distance transport channel catfish fry is feasible.

Lytta caragane Pallas in Jia Musi in lyears of 1 generations,overwintering eggs.This paper introduces the Lytta caragane morphological and biological characteristics, and through the life history characteristics,introduced the Lytta caragane medicinal value. Through the contents of the study,help to acquire Lytta caragane acquisition and processing technology,for the development of green coriander medicinal value.

This paper analyzes the strengths, weaknesses, opportunities and threats of development on wulongjiang wetland park based on the SWOT analysis, and on the basis of this analysis, reasonable suggestions are put forward in accordance with the existing problems, and provide reference for other urban wetland parks construction in Fujian province.

By consulting the relevant literature and years of production experience,the author summarizes the tomato fertilizer requirement characteristics,nutrient absorption characteristics and the law of demand with different growth period,the different stubble,the different cultivation and fertilization conditions.well as the greenhouse tomato production of scientific fertilization technology,greenhouse tomato scientific fertilization technology：tomato production is generally 6000-8000kg/667m2,before planting organic fertilizer was applied 8000-10000kg/667m2,pure N6-8kg/667m：,the P2058-10kg/667m2,K208kg/667m2.In the beginning of the first spike fruit enlargement to the size of a walnut,can be the first top dressing applied pure N2.0-2.5kg/667ma, P2052.0-2.5kg/667ma, pure K202-3kg/667m2.Later each spike fruit reaching to the size of a walnut,each pure N2.5-3.0kg/667m2, P2052-2.5kg/667m2,K203.0-3.5kg/667mE,top dressing fertilizer 5-6 times in the growing season.

Tongliao corn ＂TON-GRAIN FIELD＂ building, on the basis of organic manure or straw, soil fertility,to maintain the ecological balance of agricultural soils,and corn growth and development,to take the test monitoring of soil, plant fertilization technology.reasonable regulation and control of chemical fertilizer.Recommended the use of the the Huolinhe weathered coal production of humic acid fertilizer formula.

A field experiment to study the different amount of nitrogen on dryland spring wheat growth conditions,in order to ascertain the dryland spring wheat growth and nitrogen application case relations and other issues.Thus for dryland spring wheat high yield and high quality nitrogen technology provides scientific basis.

This paper expounded the significance of soil testing and formulated fertilization in cultivation of tobacco, and make better the computing method defect that exists in the process of implement soil testing and formulated fertilization.A prescription fertilization and verify interface is designed,which helps to popularize the soil testing and formulated fertilization in cultivation of tobacco.

In order to solve the problem of weed damage in wheat field of conservational tillage in Hulunbeier area, increase wheat yield and farmers＇ income,eight chemical herbicides were choose to control the weed of wheat filed before the sowing and in the seedling stage. The results showed that： Chenopodium album, Polygonum convolvulus L,tall lattuce flower and leaf and green bristlegrass were dominant species of wheat field with conservational tillage in Hulunbeier area, lyme grass and salsola were the subdominule.The eight chemical herbicides all can be used to control the weed in wheat field and the control effects of mixed several herbicides were better than the single use of each herbicide.The effects on wheat yield had the same order with the effects on control effects,they both showed Glyphosate combined with 2,4-D-Butyr and puma super〉2,4-D-Butyr combined with Puma super〉Humai combined with Puma super〉10 percent of Yikuoning combined with Puma super〉2,4-D-Butyr~Puma super〉MCPA-Na〉Glyphosate〉Humai〉Pardner〉10 percent of Yikuoning〉Kuoyeku. The treatment which used several herbicides can be choose first,then were the 2,4-D-Butyr, Puma super, MCPA-Na and Glyphosate,10 percent of Yikuoning and Kuoyeku can ＇ t be used.

Select 4acaricidal agent,to wolfberry gall mite indoor toxicological test and field effect.Virulence determination of avermectin EC and the results show that： the wood matrine agent on wolfberry gall mite larva of highly virulent,LC50 were 0.0496mg/1 and 0.0982 mg/1.Field efficacy trials indicated abamectin EC and matrine agent on wolfberry gall mite control effect is high,after application 3 days reached about 90%,5 days after the highest control effect,reduce.

Warming, the impact of crop pests and diseases is huge, a direct resuh of the occurrence of pests and diseases, most of the popular winter, damage law changes. In the Baotou region, the annual average temperature is gradually increased, this change is more conducive to the occurrence of locusts, potato late blight and other pests and diseases, development, and so harm, trends aggravated difficulties, attention should be paid to the comprehensive prevention and control work.

Through the analysis of soil moisture content at all levels in different periods of Hulunbeier western grassland,The soil drought characteristics of the semiarid grassland is revealed,The seasonal distribution of drought and characteristics of moisture in the soil levels are analysed monthly.The results showed： Particularly drought appeared often in 20cmdepth,moderate and light drought appeared often in 50cmor 100cm depth,serious drought occured with low frequency at all levels,the frequency of drought was more than 55%;The characteristics of seasonal distribution of drought expressed：Drought began to develop in spring,reached the most serious in early summer and rose again slightly in autumn,but is not to be able to restore soil moisture levels in early spring before the frozen,soil layer remains drought status, heralding spring drought may occur in the coming year;The western grasslands in Hulunbeier continuous drought in the spring,summer,autumn and three quarter reflects significantly.the climate characteristics of semi- drought ~rasslands.

In 2010,the annual mean temperature in datong was higher 0.2~C than normal;spring mean temperature was the second lowest since 1971,while summer temperature was the second highest since 1971.Annual preeipitation in datong was 418.9mm, 5% more than normal;precipitation in autumn was the second most since 1971.During this year, extreme weather and climate events happened freqnently,a number of meteorological items broke historical records.ln winter and spring, unusual continuous low temperature delayed spring sowing and growth of crops;In summer , the maximum temperature broke historical records,the periodic drought was obvious,the flood disasters and hail hazards were more; In autumn,the rainy weather caused waterlogging and crops regreening;In spring ,the gale and dust weather affected most of datong.These all brought more losses both to the social economy and to people life,in which,drought ,hail and flooding hazards caused more serious losses.

In Horinger County in 1971-2010 temperatures, rainfall,evaporation, strong wind days,frost-free days of data for statistical analysis, obtains the Horinger County nearly 40 years climate change characteristics of.The results showed that：in the past 40 years,Horinger County,annual average temperature fluctuated upward trend, the average increase of 0.43~C in 10a;the annual rainfall of 1971 to 1990 as the declining trend,1991-2010 fluctuated upward trend; evaporation in 1971-2000 for the declining trend,2001-2010 fluctuated upward trend;~ale number 1-38 davs：107 frost-free neriod to 212 days between.

The use of Yakeshi city 1961-2010 year annual average temperature, annual precipitation,wind,frost-free days of Yakeshi city in recent 50 years climate change and drought waterlogging occurrence characteristics. Analysis results show that： in the past 50 years,Yakeshi City,the annual average temperature is rising,the average increase of 0.32~C/10.The annual average temperature of wave crest and trough are clearly on the rise,which has 12-20 year cycle peaks, troughs have 10-16 year cycle; annual precipitation variation is not particularly evident; drought and flood occurrence probability of showing a tendency to increase;gale days showing a decreasing trend;frost-free period basically has no obvious change.

Sandstorm refers to the wind blows the dust from the earth, the air is so turbid that the level of visibility is only in one thousand meters to ten thousand meters. This kind of weather is the specific characteristic in arid regions. It is closely connected with the global green house effect, the diminution of vegetative cover and the reduced factor for the forest. With the global climate warming and the deterioration of ecological environment, the weather events and the threat is crafted. The detailed analysis of causes and the harm of the sandstorm in China in recent years had been given. They gave the measures to control and prevent sandstorm. Preventing sandstorm should coordinate the investigation of weather condition with the administration of ecology environment. It is necessary to adjust the relationship between human beings and the nature. We also should try our best to protect and improve our environment.

using a variety of meteorological data on November 7 ~13,2009 occurred during the cold weather circulation background,influence system and physical quantity field diagnostic analysis is performed on the front zone,low layer, surface cold air moving path and surface meteorological elements were studied. The results show that the weather is the height 500hPa blocking high collapsed,Tony Lake transverse trough to vertical,strong cold air south,led to a strong cold wave in.With the strong cold wave accompanied the snowfall occurs in high humidity and moisture flux convergence zone.

Using nuclear cytoplasmic interaction male sterility,Neikuiza No.4 which was three-line oil sunflower varieties was bred through successive backcross,and male sterile lines and the same type of maintainer line were bred,then hybrid with the recovery line nuclear cytoplasmic.In 2011,passed the validation of New Varieties of autonomous region.The hybrid which growth period was 94 days,with disease resistance and yield,in regional trials of autonomous regions, average yield of 23d.lkg/mu,yield increased 8.8% compared with the control MGS,seed oil content 46.73%.Appropriate to be promoted and planted in the area which〉 10℃ active accumulated temoerature above 2100℃

The breeding Jiuyu 1034 was finished by Inner Mongolia Jiu Feng Co.Ltd. Agricultural Research Institute in 2005. Results of two year regional tests and one year production test showed that its yied much higher than the CK.Jiuyu 1034 has many features,such as high yield ,good quality,disease-resistance,high surviving rate of seeding and strong adaptability and so on.

AJin E-28conventional Japonica Rice Varieties in Tianjin, in the whole growth period of about 177d,plant height 117.3em,spike length 22.0cm, weight 30.2g,riee false smut, stripe disease exhibited high resistance （ HR ）;rice blast resistance performance of（ MR ）.Anti senility, sturdy stem toughness,resistance to lodging.Late mature living tree. Quality index reached the national standard level 1.New technology for mechanized transplanting cultivation.

Marigold,selection, sowing,seedling, planting,cultivation, defloration,yield is very high.Pigment marigold picking flowers,mainly used for extracting pigment as material,extracting lutein is mainly used in food processing,the natural yellow pigment, in the international market demands exceeds supply.I personally by pigment marigold pigment marigold cultivation.

Hulubeier city is one of the main stations of potato plantation.The next few years will be the critical period of potato industrialization.In this paper, the advantages and problems of potato industrialization in Hulunbeier were discussed,and the countermeasures of promoting potato industrialization were also suggested.

Bayannor is our country green peppers sown area biggest production base,every year the green peppers sown area about 100000 Chinese acres, more than 300 dehydration Processing industry, the year production dehydrates the blue red pepper I0000 tons, accounts for the national ultimate output 70%, the product exports for sale abroad completely, has certain competitive power in the international market.The article pointed out that the Bayannor dehydrated vegetables production existence the question, and proposed the corresponding solution.