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绿豆/黑豆压青还田下减量施肥对宿根甘蔗产量和主要农艺性状的影响

Su Lirong,Tan Yumo, Qin Fang, Li Qin,Zeng Chengcheng, Li Zhongyi,Wei Caihui,Dong Wenbin, Liang Jun,He Tieguang

wf(2022)

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Abstract
为探讨绿豆/黑豆还田和减施化肥条件下,间作绿肥压青还田对宿根甘蔗生长的影响及绿肥还田和有机肥施用对化肥的替代作用.试验设计了常规施肥(CK)、化肥减施25%+12%营养元素当量绿豆绿肥还田+13%营养元素当量有机肥(H-LY)、化肥减施25%+全量绿豆还田(H-LQ)、化肥减施25%+25%营养元素当量有机肥(H-Y)、化肥减施25%+25%营养元素当量黑豆绿肥还田(H-HD)和化肥减施25%+全量黑豆还田(H-HQ)6个处理.结果表明,与CK处理相比,宿根蔗间作绿豆和黑豆压青还田对甘蔗株高、有效茎数和单茎重没有显著影响,所有处理的蔗茎产量与CK处理无显著差异,说明宿根蔗间作绿豆和黑豆绿肥压青还田、当量有机肥施用均可以替代25%的甘蔗化肥.
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