摘要
以临奥1号玉米品种为试验材料,设置常规施肥、氮肥减施20%、氮肥减施20%配施DCD、氮肥减施20%配施DMPP、氮肥减施20%配施CP等5个处理,在遵义市桐梓县进行田间试验,比较不同处理玉米生长发育、产量及品质情况.结果表明:氮肥减施20%条件下配施3种缓控释剂均可促进玉米生长发育、提高玉米产量、改善玉米品质,其中以配施DCD和DMPP效果最佳,其玉米产量及品质甚至可超过常规施肥水平.
Abstract
Field experiments were conducted in Tongzi County,using Lin'ao No.1 maize variety as experimental material,including conventional fertilization,20%reduction of nitrogen fertilizer,20%reduction of nitrogen fertilizer combined with DCD,20%reduc-tion of nitrogen fertilizer combined with DMPP,20%reduction of nitrogen fertilizer combined with CP.The growth,development,yield and quality of maize under different treatments were compared.The results showed that the combined application of three slow-release agents could promote the growth and development of maize,increase the yield and improve the quality of maize,among which DCD and DMPP had the best effect,and the yield and quality of maize could even exceed the conventional fertilization level.
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