不同肥力土壤
Soils with different fertility
长期土壤肥力试验
Long-term soil fertility experiment
耕作土壤肥力性状
Cultivated soil fertilizer trait
国家土壤肥力监测点
national soil fertility long-term monitoring sites
潜在土壤肥力
potential fertility of soil
提高土壤肥力
increasing of soil fertility
土壤肥力
Soil fertility
soil fertilization
the soil fertility
fertility of soil
soil fertility level
soil fertilizer
soil fertility quality
fertilization measure
Soil nutrients
soil nutrient
Nutrient of soil
Soil quality
Soil fertili
Soil nutrition
Return of straws into soil
enzyme activity
Activity
Yield
integrative evaluation
Fertility
sustainable productivity
土壤肥力保持价值
keep value on soil fertility
土壤肥力补给
soil fertility replenishment
土壤肥力等级
grades of the soil fertility
soil fertility levels
Regional fertilizer response model
土壤肥力恢复
recovery of soil fertility
soil recovery
土壤肥力评价
soil fertility evaluation
evaluation of soil fertility
fertility evaluation