Effects of Different Controlled Release Fertilizers on Yield and Nitrogen Utilization of Winter Wheat
Li Zishuang
Tan Deshui
Li Hongjie
Wang Wei
Zhao Tongkai
Abstract：In order to explore the suitability of different controlled release fertilizer varieties for winter wheat in Northwest Shandong,through two-year experiment,the effects of different controlled release fertilizers on winter wheat population structure,yield and nitrogen use efficiency were studied,and the comprehensive evaluation was conducted.The results showed that compared to the local optimum fertilization(OPT),CRFA,CRFB,CRFD treatments could effectively control the winter wheat population,and there were no significant differences in yield,harvest index and nitrogen translocation ratio,so they could reach the expected goal.Compared with OPT,CRFA and CRFB treatments increased the nitrogen use efficiency by 5.09 and 4.33 percentage points,respectively.According to the comprehensive analysis,the nutrient releasing characteristics of CRFA and CRFB treatments were more suitable for the growth of winter wheat,followed by the CRFD treatment.
Keywords：Controlled release fertilizerWinter wheatNitrogen utilizationPopulation structureYield
Publication Date：2017-08-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：5( 73-77 )