coated controlled release 第1页

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 sulfur- and polymer-coated controlled release urea fertilizers on wheat yield and quality and fertilizer nitrogen use efficiency. Effects of coated controlled release urea combined with conventional urea on winter wheat growth and soil NO3--N. Effects of sulfur- and polymer-coated controlled release urea on yield, photosynthetic characteristics and nitrogen fertilizer efficiency of rice Study on the use of polymer/bentonite composites for controlled release Study on fertilizer efficiency and its mechanism of urea and ammonium bicarbonate treated with controlled-release technology Progress on evaluation methods for nutrient release characteristic of coated controlled release fertilizers