apparent budget of soil N 第1页

Studies on the spatio-temporal variations of soil NO_3~--N and apparent budget of soil nitrogen Ⅰ. Winter wheat The Spatio-temporal Variations of Soil NO_3~--N and Apparent Budget of Soil Nitrogen Ⅱ. Summer Maize Effect of nitrogen application time on dynamics of nitrate content and apparent nitrogen budget in the soil of summer maize fields Effect of coated compound fertilizer on yield,nitrogen use efficiency and soil available nitrogen in summer maize