soil nitrate-N 第1页

Relationships between nitrogen application rate soil nitrate-nitrogen, plant nitrogen concentration and wheat scab Interactive effects of irrigation and nitrogen fertilizer on nitrogen fertilizer recovery and nitrate-N movement across soil profile in a winter wheat field Effects of nitrogen rate on nitrogen fertilizer use of winter wheat and content of soil nitrate-N under different fertility condition Effects of N fertilization on winter wheat grain yield and its crude protein content and apparent N losses Effect of intercropping three legume crops with maize on soil nitrate-N accumulation and distribution in the soil profile