Effects of Application of Zn,Fe,and Mo on the Alfalfa Yield and Their Contents and Absorption Amounts;
鋅、鐵、鉬配施對紫花苜蓿產草量及鋅鐵鉬含量和吸收量的影響
Study on the Effect of Different Application Rate of Beef Cattle Feces on Yields and Nutrients Level of Dwarf Elephant Grass and on the Degradation Rate of Dry Matter;
不同牛糞施用量對矮象草產草量、營養(yǎng)物質含量及干物質降解率的影響
Effect of seeding-year clipping frequency on root weight and yield in alfalfa and brome grass mixture swards;
刈割對混播草地根重及翌年產草量的響應
Studies on grass yield monitoring and predicting models of natural grassland using remote sensing data in Northern Xinjiang.;
新疆北部天然草地產草量遙感監(jiān)測預測模型研究
The grass yield was 22 000 kg/hm2 in the second year and 38 000 kg/hm2 in the third year The proper harvest time was before the flowering stage.
3;產草量高,第2年產草量22 000 kg/hm2,第3年產草量3 8000 kg/hm2,宜在花期以前刈割利用;沙打旺再生能力比苜蓿弱,二茬草高度只有46 cm;沙打旺根系發(fā)達,抗旱、抗寒、耐瘠薄、競爭力強,能形成單一郁閉群落。
Sowing period distinctly affected the grass yield and gross protein yield.
播期能對高丹草產草量和粗蛋白產量產生明顯影響。
Regression analysis between forage yield and quality traits in sorghum-sudangrass hybrid;
高粱-蘇丹草雜交種產草量與品質性狀的回歸分析
Effect of foliage dressing on forage yield and nutrition value of alpine grassland;
葉面施肥對高寒草地產草量及牧草營養(yǎng)品質的影響
Field caging and simulated feeding were conducted to study the effects of grasshoppers of different development periods and densities on forage yield on grasslands,using the 1~(st)-3~(rd),4~(th) and 5~(th) instars and adults of Oedaleus asiaticus B.
采用田間罩籠和人工模擬取食兩種方式,分別測定了亞洲小車蝗1~3齡、4齡、5齡和成蟲在蟲口密度5、15、30頭/m2下取食牧草對草地產草量的影響。
The different sowing periods obviously shown the effect on the hay yield and the production performance such as the dry-fresh ratio and the leaf-stem ratio.
不同的播期對產草量產生明顯影響,對品質性狀鮮干比、莖葉比影響不明顯。
A randomized block design was adopted to study growing characteristics,winter-survival rate and hay yield of alfalfa sown in dryland-farming regions of southern Ningxia province on different dates.
采用隨機試驗設計方法,在寧南旱作農業(yè)區(qū)進行了不同播期對紫花苜蓿出苗率、生長發(fā)育、越冬率和產草量影響的研究。
By doing field fertilizer experiment with three factors three levels orthogonal experiment design of alfalfa, the objective of this study showed that the effects of applied nitrogen, phosphorus, potassium ratio fertilizer on alfalfa hay yields, nutrient absorption and soil fertility in the first year and the following year.
在南疆庫爾勒地區(qū),采用三因素三水平正交試驗設計,研究N、P、K配比施肥對當年及第二年紫花苜蓿產草量、養(yǎng)分吸收和土壤肥力的影響,并在北疆取樣測定四年生苜蓿地土壤肥力的變化,主要研究結論如下:產量:通過對種植當年的平均產量進行三元二次函數模擬,得到肥料效應模型,采用頻率分析方法尋優(yōu),得到在苜蓿生產中,在和本試驗類似土壤條件下種植苜蓿,施肥量投入應為N:42。
Grass output of natural grasslands in north China has dropped by 30-50 percent.
北方天然草原產草量下降了30％—50％。
Remote Sensing Methods for Monitoring Grassland Production in Inner Mongolia;
內蒙古草原產草量遙感監(jiān)測方法研究
ANALYSIS AND SURVEY OF GRASS YIELD DURING WINTER AND SPING IN 2008 IN TONGREN COUNTY
同仁縣2008年冬春草場產草量動態(tài)監(jiān)測及分析
Grass yield meteorological prediction method for main natural grasslands in China
中國主要天然草地產草量氣象預測方法
Evaluation of Main Climatic Factors Effecting on Grass Production of Natural Grassland
主要氣候因子對天然草地產草量的影響評價
Calculation of grass production and balance of livestock carrying capacity in rangeland region of Northeast China
東北草原區(qū)產草量和載畜平衡的遙感估算
Analyzing the Influence of Weather Variety on the Grass Yield of Tongliao City Northern Steppe
氣候變化對通遼市北部草原產草量的影響分析
FORAGE YIELD IN NATURAL GRASSLAND OF CORRELATIVE DEGREE ANALYSIS OF TEMPERATURE AND PRECIPITION
氣溫和降水與天然草地牧草產草量的關聯(lián)度分析
Study on the Yield and Quality of Elymus L. Seed
披堿草屬牧草種子產量及質量的研究
On the qualites of rotary lawn mowsrs;
淺析旋刀式草坪割草機產品質量狀況
The Effect of Climate Factors on the Grass Yield of Natural Pasture
氣候因子對天然草地牧草產量的影響
Dry Matter and Protein Yields of Leymus Chinensis Grassland Changes Induced by Defoliation;
人工羊草草地產量和質量對刈割的反映
Research on Remote Sensing Models for Grassland Vegetation Biomass Monitoring in Xilinguole;
錫林郭勒草地牧草產量遙感監(jiān)測模型的研究
Determination of Adenosine and Cordycepin in Cordyceps Products by Ultrahigh-Performance Liquid Chromatography
蟲草產品中腺苷和蟲草素含量的測定-UPLC檢測
Estimation of forage yield in Northern China based on NDVI data
利用NDVI資料估算中國北方草原區(qū)牧草產量
THE DYNAMIC MODEL OF MEADOW GRASSLAND NATURAL HERBAGES YIELD FORMING IN QINGHAI PLATEAU AND ITS APPLICATION
青海高原草甸草場天然牧草產量形成的動態(tài)模式及應用
2)Among grass species, the highesthay yield was western rye-grass and smooth brome, it was 21.77 ton/ha.
2)禾本科牧草中,西部黑麥草返青早,干草產量達1451.6公斤/畝。
Effect of NPK combination on forage yield and nutrient accumulation under sudangrass and ryegrass regime
蘇丹草-黑麥草輪作中氮磷鉀配施對飼草產量與養(yǎng)分積累的影響