青贮玉米平衡施肥技术研究  

Technique of Balanced Fertilization of Nitrogen,Phosphorus and Potassium for Silage Maize

作　　者：滕险峰[1] 迟凤琴[2] 高中超[2] 赵秋[2] 

机构地区：[1]黑龙江省农业科学院,哈尔滨150086 [2]黑龙江省农业科学院土壤肥料研究所,哈尔滨150086

出　　处：《玉米科学》2007年第1期128-131,146,共5页Journal of Maize Sciences

基　　金：黑龙江省博士后基金项目(2003-2005)

摘　　要：本试验采用二次回归正交组合设计,通过田间小区试验研究了氮磷钾配合施用对青贮玉米的影响。通过主因素、单因素效应分析,定量地评价了氮肥、磷肥和钾肥用量与青贮玉米产量的关系,提出了目标产量的最优氮磷钾组合方案。从青贮玉米最大生物产量和经济效益综合考虑其最优氮肥(N)用量范围为308.4～365.0 kg/hm2,最优钾肥(K2O)用量范围为65.5～89.8 kg/hm2,磷肥(P2O5)用量最佳范围为100.1～117.0 kg/hm2。The orthogonal combination design of quadratic regression was adopted in this experiment. Effects of interaction among nitrogen, phosphorus potassium coordinating on the organism yield of silage maize was studied by field experiment. Effect of N, P, K on the organism yield of silage maize were studied quantitatively based on main and single factors effect analysis. The range of N, P, K optimal composite scheme was 308.4 - 365.0 kg/ha, 100.1 - 116.0 kg/ha, 65.5 - 89.8 kg/ha. This result provided an optimum composite scheme of N, P, K for an aimed yield. Key woldS：

关 键 词：青贮玉米 施肥 氮磷钾配合 产量模型 

分 类 号：S513.062[农业科学—作物学]