耕作土壤肥力性状
Cultivated soil fertilizer trait
肥力的生态相对性
Fertility ecological relativity
不同肥力土壤
Soils with different fertility
长期土壤肥力试验
Long-term soil fertility experiment
根际土壤生态系统
Rhizosphric soil ecosystems
国家土壤肥力监测点
national soil fertility long-term monitoring sites
南极土壤生态系统
The soil-ecosystem in the Antarctic Continent
农田土壤生态系统
ecological system of upland soil
潜在土壤肥力
potential fertility of soil
生态土壤深度处理
ecologic soil deep treatment process