Nitrogen and phosphorus fertilizer 第1页

Effect of different amounts of nitrogen and phosphorus fertilizers applied on soil microbial biomass during corn growth periods Effect of combined nitrogen and phosphorus fertilizer application of wheat-maize intercropping system Dynamic of Grain Falling Number in Spring Wheat and Effects of Nitrogen, Phosphorus Fertilizer and Sowing Date on It during Grain Filling Changes of soil biodiversity in Inner Mongolia steppe after 5 years of N and P fertilizer applications Interactive influence of nitrogen and phosphorus application rate on wheat yield in North Henan, China