摘要
采用“311-B”二次回归最优设计 ,以氮、磷、钾肥为供试因子 ,番茄产量为目标函数 ,对番茄高产数学模型进行了研究。根据模型得出最佳施肥量为 :尿素 2 2 7kg/hm2 ,过磷酸钙 75 1kg/hm2 ,硫酸钾 14 2kg/hm2 ,产量可达 6 336 4 10kg/hm2 ,利润为 9936 6 6元 /hm2 ,并对氮磷钾单因素效应及交互作用作了具体剖析。
Application 311 B twice regression D the best design,tomatoes were tested with N,P and K.Applying model of tomatoes were studied.From the model,result of the amount of applying fertilizer of the optimization 1 ha land were applied with 227 kg carbamide;751 kg calcium superphosphate;142 kg potassium suiphate,the yield reached 63364 10 kg/ha and the profit was 99 366 60 yuan /ha.Efficiency of single fact and their interaction were analyzed.
出处
《华北农学报》
CSCD
北大核心
2002年第3期104-108,共5页
Acta Agriculturae Boreali-Sinica
基金
内蒙古民族大学科研基金 (2 0 0 0 0 12 )
