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德宏州常规优质稻化肥减量增效研究

杨荣教,王白,王白昌,余选礼

Yunnan Agricultural Science and Technology（2018）

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Abstract
通过开展常规优质稻化肥减量增效研究试验表明,本区常规优质稻在当前施肥量(纯N111.0 kg/hm2、P2O5 48.0 kg/hm2、K2O 48.0 kg/hm2)及施肥方法(氮肥为基肥∶分蘖肥=2∶1)的基础上,化肥用量减少20％(纯N 88.8 kg/hm2、P2O5 38.4 kg/hm2、K2O 38.4 kg/hm2),且氮肥调整为基肥∶分蘖肥∶促花肥∶保花肥=1∶1∶1∶1平衡施用,产量较常规施肥水平提高16.5％,综合效益提高18.3％.
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