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요약정보
配方肥对中早39水稻产量、氮肥利用率及经济效益的影响
Resource Type
Academic Journal
Authors
杨佳佳
;
章日亮
;
章哲
;
缪军翔
;
刘晓霞
Source
浙江农业科学 / Journal of Zhejiang Agricultural Sciences
. 63(6):1226-1228
Subject
配方肥
中早39
产量
氮肥利用率
经济效益
Language
Chinese
ISSN
0528-9017
Online Access
Find it @ DONGA
초록
根据对氮磷钾元素的需求特性,在当地主推的水稻品种中早39上选用配方肥开展田间试验.结果表明,配方施肥对水稻产量构成因子有影响,相比其他处理,均以配方施肥区为最高.无氮区每667 m2产量最低,仅有410 kg.配方肥区水稻每667 m2纯收入1126.12元,较空白增收183.72元,各缺素处理纯收入由高到低为缺磷>缺钾>缺氮.在水稻产量限制的养分因子中,氮素最为重要,其次为钾和磷.在大田生产中,应适当增加氮肥,稳定施用磷肥,适量增加钾肥,优化氮磷钾的施用比例,提高水稻产量.配方肥的水稻当季利用率达40%,可提高水稻产量和纯收入.
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