摘要
为了提高生姜产量和肥料利用率,通过"3414"试验,建立了以生姜产量目标函数的肥料效应模型。结果表明:当姜田施入90t.hm-2优质有机肥后,目标产量为95 968kg.hm-2时,氮磷钾最大需要量为尿素1 171.5kg.hm-2、过磷酸钙214.5kg.hm-2、硫酸钾849.0kg.hm-2。在分兜期、姜块膨大期喷施"天蓝薯宝"营养肥,可以提高生姜产量。
In order to improve the yield of ginger and fertilizer use efficiency, based on the ＇3414＇ design, the fertilizer effect model was built which taking ginger yield as target function. The results showed that：when applying 90 t·hm 2 organic fertilizer in ginger field, the target yield reached 95 968 kg. hm-2, the maximum requirement of N,P and K was urea 1 171.5 kg-hm-2 ,superphosphate 214.5 kg-hm-2 ,potassium sulfate 849. 0 kg-hm-2. It could raise the yield of ginger when spraying ＇ sky blue potato treasure＇ nutrition fertilizer at splitting poket stage and swelling stage.
出处
《黑龙江农业科学》
2013年第5期29-31,共3页
Heilongjiang Agricultural Sciences
