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。
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, P2O57.78kg, K2O 4.14kg; N＋ P2O5 3.74 kg, N ＋ K2O 2.83 kg, P2O5 ＋ K2O 2.18 kg, N ＋ P2O5 ＋ K2O 3.85 kg, respectively.
出处
《土壤》
CAS
CSCD
北大核心
2012年第1期50-54,共5页
Soils
基金
农业部测土配方施肥项目资助
关键词
油菜
氮磷钾
肥料效应
海门
Rape, NPK, Fertilizer response, Haimen
