Effects of Application of Zn,Fe,and Mo on the Alfalfa Yield and Their Contents and Absorption Amounts;
锌、铁、钼配施对紫花苜蓿产草量及锌铁钼含量和吸收量的影响
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;
不同牛粪施用量对矮象草产草量、营养物质含量及干物质降解率的影响
Effect of seeding-year clipping frequency on root weight and yield in alfalfa and brome grass mixture swards;
刈割对混播草地根重及翌年产草量的响应
Studies on grass yield monitoring and predicting models of natural grassland using remote sensing data in Northern Xinjiang.;
新疆北部天然草地产草量遥感监测预测模型研究
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;产草量高,第2年产草量22 000 kg/hm2,第3年产草量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;沙打旺根系发达,抗旱、抗寒、耐瘠薄、竞争力强,能形成单一郁闭群落。
Sowing period distinctly affected the grass yield and gross protein yield.
播期能对高丹草产草量和粗蛋白产量产生明显影响。
Regression analysis between forage yield and quality traits in sorghum-sudangrass hybrid;
高粱-苏丹草杂交种产草量与品质性状的回归分析
Effect of foliage dressing on forage yield and nutrition value of alpine grassland;
叶面施肥对高寒草地产草量及牧草营养品质的影响
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.
采用田间罩笼和人工模拟取食两种方式,分别测定了亚洲小车蝗1~3龄、4龄、5龄和成虫在虫口密度5、15、30头/m2下取食牧草对草地产草量的影响。
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.
不同的播期对产草量产生明显影响,对品质性状鲜干比、茎叶比影响不明显。
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.
采用随机试验设计方法,在宁南旱作农业区进行了不同播期对紫花苜蓿出苗率、生长发育、越冬率和产草量影响的研究。
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.
在南疆库尔勒地区,采用三因素三水平正交试验设计,研究N、P、K配比施肥对当年及第二年紫花苜蓿产草量、养分吸收和土壤肥力的影响,并在北疆取样测定四年生苜蓿地土壤肥力的变化,主要研究结论如下:产量:通过对种植当年的平均产量进行三元二次函数模拟,得到肥料效应模型,采用频率分析方法寻优,得到在苜蓿生产中,在和本试验类似土壤条件下种植苜蓿,施肥量投入应为N:42。
Grass output of natural grasslands in north China has dropped by 30-50 percent.
北方天然草原产草量下降了30％—50％。
Remote Sensing Methods for Monitoring Grassland Production in Inner Mongolia;
内蒙古草原产草量遥感监测方法研究
ANALYSIS AND SURVEY OF GRASS YIELD DURING WINTER AND SPING IN 2008 IN TONGREN COUNTY
同仁县2008年冬春草场产草量动态监测及分析
Grass yield meteorological prediction method for main natural grasslands in China
中国主要天然草地产草量气象预测方法
Evaluation of Main Climatic Factors Effecting on Grass Production of Natural Grassland
主要气候因子对天然草地产草量的影响评价
Calculation of grass production and balance of livestock carrying capacity in rangeland region of Northeast China
东北草原区产草量和载畜平衡的遥感估算
Analyzing the Influence of Weather Variety on the Grass Yield of Tongliao City Northern Steppe
气候变化对通辽市北部草原产草量的影响分析
FORAGE YIELD IN NATURAL GRASSLAND OF CORRELATIVE DEGREE ANALYSIS OF TEMPERATURE AND PRECIPITION
气温和降水与天然草地牧草产草量的关联度分析
Study on the Yield and Quality of Elymus L. Seed
披碱草属牧草种子产量及质量的研究
On the qualites of rotary lawn mowsrs;
浅析旋刀式草坪割草机产品质量状况
The Effect of Climate Factors on the Grass Yield of Natural Pasture
气候因子对天然草地牧草产量的影响
Dry Matter and Protein Yields of Leymus Chinensis Grassland Changes Induced by Defoliation;
人工羊草草地产量和质量对刈割的反映
Research on Remote Sensing Models for Grassland Vegetation Biomass Monitoring in Xilinguole;
锡林郭勒草地牧草产量遥感监测模型的研究
Determination of Adenosine and Cordycepin in Cordyceps Products by Ultrahigh-Performance Liquid Chromatography
虫草产品中腺苷和虫草素含量的测定-UPLC检测
Estimation of forage yield in Northern China based on NDVI data
利用NDVI资料估算中国北方草原区牧草产量
THE DYNAMIC MODEL OF MEADOW GRASSLAND NATURAL HERBAGES YIELD FORMING IN QINGHAI PLATEAU AND ITS APPLICATION
青海高原草甸草场天然牧草产量形成的动态模式及应用
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,西部黑麦草返青早,干草产量达1451.6公斤/亩。
Effect of NPK combination on forage yield and nutrient accumulation under sudangrass and ryegrass regime
苏丹草-黑麦草轮作中氮磷钾配施对饲草产量与养分积累的影响