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海门市油菜氮磷钾肥料效应研究Ⅰ:施肥效应

作  者:
顾黄辉;许福涛;陆金萍
单  位:
江苏省海门市土壤肥料技术指导站;江苏省海门市农业技术推广中心
关键词:
油菜;氮磷钾;肥料效应;海门
摘  要:
2007—2009年度在海门市进行了油菜3414肥料效应试验。结果表明:海门市油菜产量与氮、磷、钾肥用量之间呈三元二次回归效应关系,2007—2008年度和2008—2009年度试验点综合肥料效应方程分别为:y2007-2008=98.220+4.876N-0.231N2+13.399P-1.748P2+6.346K-0.621K2+0.377NP+0.126NK+0.090PK和y2008-2009=110.352+7.636N-0.311N2+7.178P-0.929P2+3.923K-0.550K2+0.152NP+0.175NK+0.173PK。平均每千克养分增产油菜籽分别为:N 5.36 kg,P2O57.78 kg,K2O 4.14kg;N+P2O53.74 kg,N+K2O 2.83 kg,P2O5+K2O 2.18 kg,N+P2O5+K2O 3.85 kg。
译  名:
N,P and K Fertilizer Response of Rape in Haimen Ⅰ:Fertilizing Responses
作  者:
Agro-Tech Extension and Service Center,Haimen,Jiangsu 226100,China; 2 Haimen Soil Fertilizer Technology Guiding Station,Haimen,Jiangsu 226100,China)
关键词:
Rape,NPK,Fertilizer response,Haimen
摘  要:
3414 test results from 2007 to 2009 in Haimen of Jiangsu Province showed there were ternary quadratic regressions between rape yield and nitrogen,phosphorous and potassium use ratios,the regression equations of 2007 to 2008 and 2008 to 2009 were : y = 98.220 + 4.876N-0.231N2 + 13.399P-1.748P2 + 6.346K-0.621K2 + 0.377NP + 0.126NK + 0.090PK and y = 110.352 + 7.636N-0.311N2 + 7.178P-0.929P2 + 3.923K-0.550K2 + 0.152NP + 0.175NK + 0.173PK,respectively.Per kg nutrient increased rape yield by N 5.36 kg,P2O5 7.78 kg,K2O 4.14 kg;N + P2O5 3.74 kg,N + K2O 2.83 kg,P2O5 + K2O 2.18 kg,N + P2O5 + K2O 3.85 kg,respectively.

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