N fertilizer use efficiency 第1页

Effects of Different N Management Modes on Grain Yield and Quality as well as Fertilizer N Use Efficiency of Winter Wheat Effects of Wheat Residue Incorporation and Nitrogen Management Techniques on Formation of the Grain Yield of Rice Effect of different N rates on nutrient accumulation and nitrogen use efficiency in rainfed land Lanzhou lily Absorption and utilization of different nitrogen forms for sweet potato Suitable nitrogen fertilization mode for high yield and quality and high N use efficiency in high density direct-sown rapeseed(Brassica napus L.) Effects of value-added urea on wheat yield and N use efficiency and the distribution of residual N in soil profiles Agronomic responses to nitrogen application and nitrogen utilization in rice fields Nitrogen balance in paddy fields under different rotation systems in the Taihu Lake Region Effect and mechanism of organic-inorganic compound fertilization on chemical fertilizer utilizationI. Effect of urea compounded with organic material on maize yield and fertilizer utilization Effect of different furrow irrigation patterns on cotton nitrogen absorption and nitrogen fertilizer use Dyanmics and residue of soil nitrate in summer maize field of North China Effects of sulfur-and polymer-coated controlled releaseurea fertilizers on spatial-temporal variations of soil NO-3-N and nitrogen balance and nitrogen use efficiency Effects of fertilizer-N application for double early rice on the yield,nitrogen use efficiency and soil nitrogen content of double late rice