1.
Research on Effect of Soil Erosion on Cultivated Land Soil Productivity
土壤侵蚀对耕地土壤生产力的影响研究
2.
Study on the Method of Soil Productivity Assessment in Northeast Black Soil Regions of China
东北黑土区土壤生产力评价方法研究
3.
Applied Productivity Index Model (PI) in Soil Productivity Assessment of Northern China
生产力指数模型PI在北方土壤生产力评价中的应用
4.
The cropping pattern should be adjusted, so as to give a higher yield and maintain land productivity.
进行合理轮作，不但能获得高产，而且可保持土壤生产力。
5.
Calculation and Analysis of Climate-Siol Potential Productivities in Heilongjiang Black Soil Region
黑龙江省黑土区气候—土壤生产潜力计算与分析
6.
Analysis of Climate-soil Potential Productivity in Black Soil Region of Heilongjiang Province
黑龙江省黑土区气候-土壤生产潜力分析
7.
Effects of Rice Seedlings Broadcasted among High Standing-stubbles under No-tillage Condition on Soil Microbes and Soil Enzyme Activities and Soil Fertilization and Yield;
免耕高桩抛秧对土壤微生物、酶活性及土壤肥力和产量的影响
8.
Study on the Soil Fertility Change and Long-Term Maintenance of Productivity in Chinese Fir Plantation;
杉木林土壤肥力变化和长期生产力维持研究
9.
Effect of fertilization on productivity different producing performance alfalfa varieties and soil fertility
施肥对不同品种苜蓿生产力及土壤肥力的影响
10.
Soil amelioration and ample supply of nutrients in the form of fertilizers is needed to convert poor soils into productive agricultural land.
土壤改良和增施肥料可使这些土壤逐步转变成具有农业生产力的土壤。
11.
Soil Taxonomy and Land Potential Productivity in Hotan Development Zone, Xinjiang;
新疆和田开发区土壤系统分类和生产潜力研究
12.
The Study of Soil Properties and the Potential Productivity of Crop in Kerqin Sandy Land;
科尔沁沙地土壤特性及作物生产潜力研究
13.
STUDY ON PRODUCTIVE POTENTIALITY OF SOIL RESOURCES OF LINZE ZONE OF HEXI CORRIDOR,CHINA;
河西走廊临泽样区土壤生产潜力初步研究
14.
Effect of Cultivation on Grassland Productivity and Soil Quality
开垦种植对草地生产力及土壤影响的研究
15.
Soil Nutrient Characteristics and Productivity of Natural Phyllostachys pubescens Forest in Xiaokeng,Anhui
安徽肖坑天然毛竹林生产力及其土壤养分特点
16.
Analysis of Properties of Soil Microbial Biomass Carbon in High-Yielding Corn Soil
玉米高产田土壤微生物量碳的肥力特性分析
17.
Research on the Change of Soil Fertility in the Conversion Period of Organic Processing Tomato
有机加工番茄生产转换期土壤肥力变化研究
18.
Study on the Above Ground Biomass Production and Soil Water of Artificial Lespedeza davurica Grasslands in Loess hilly-gully Region
黄土丘陵区达乌里胡枝子人工草地生产力与土壤水分特征研究