黄河三角洲典型麦田氮磷钾肥料利用率研究.pdf

文档介绍：安徽农业科学, , ( ):
J. Anhui Agric. Sci. 2021 49 13 163-164 ce,Binzhou, Shandong 251911;2. Agricultural & Rural Bureau of Wudi County, Binzhou City, Shandong Prov-
ince,Binzhou, Shandong 251900;3. School of Biological & Environmental Engineering, Binzhou University, Binzhou, Shandong 256600)
Abstract
　 [Objective] To analyze the utilization rates of NPK fertilizers in the wheat farmland of the Yellow River Delta. [ Method] Five
treatments were arranged in this study, i. e. , NPK, NP, PK, NK, and slow-released fertilizer. The differences in NPK utilization between
balanced NPK fertilization and slow-released fertilizer fertilization were determined. [Result] The significant differences were observed in soil
available nutrients contents, wheat biomass production and grain yield. Higher wheat grain yield were in the balanced NPK fertilization treat-
ment, and the utilization rates of NPK fertilizers were greater than that in the slow-released fertilizer treatment. [ Conclusion] Selecting the
suitable fertilization mode could be the key step to increase the fertilizer utilization rate in the study area.
Key words
　 Wheat;Fertilizer utilization rate;NPK nutrients;Slow-released fertilizer
化肥是粮食增产的基础 世界农业的发展证明 施用化