soil fertilization 第1页

Compensation effectsof planting density and fertilization on grain yield,water use efficiency and seedsnutrient contents of dry land spring wheat Effects of different manure management practices on soil carbon and basal respiration Effect of fertilization in immature loess subsoil on productivity and rhizospheric soil nutrient and biological activity of cereal crops Comparison Study on Soil Chemical Characteristics in Tropical Natural Forests in Different Succession Stages THE NUTRIENT DISTRIBUTION IN PLANT AS EFFECTED BY APPLICATION OF N,P FERTILIZER