桐梓县杂交玉米氮磷钾的合理配施效应  

Effects of combined application of N,P,K on the hybrid maize in Tongzi

作　　者：蔡叶 王静 

机构地区：[1]贵州省桐梓县农业局土肥站,贵州桐梓563200

出　　处：《山地农业生物学报》2007年第3期198-202,共5页Journal of Mountain Agriculture and Biology

基　　金：农业部测土配方施肥补贴项目资助[农办财(2006)11]

摘　　要：采用“3414”平衡施肥方案,在桐梓县肥力较高的小黄沙泥土上进行了杂交玉米的肥料效应田间试验。结果表明,增产效果最佳的肥料配方为处理6,即尿素32.6kg.667m-2、普钙62.5kg.667m-2、氯化钾26.7kg.667m-2;从经济效益分析来看,以低氮低磷中钾处理的肥料增产效益最好,其肥料的产/投比为2.42,其肥料配方为处理12(N1P1K2),即尿素13.6kg.667m-2、普钙31.25kg.667m-2、氯化钾13.3kg.667m-2。A＂3414＂equilibrium fertilizer scheme was adopted to study fertilizer effect of hybrid corn in small yellow sand soil of Tongzi county. The results show that treatment 6 is best fertilizer formula for increase production effect, namely urea 32. 6kg·667m^-2 ,ordinary calcium 62. 5kg·667m^-2 ,potassium chloride 26.7kg·667m^-2. According to the analysis of economilc efficiency,the potassium processing fertilizer is the best for increasing production in low nitrogen and low phosphorus conditions. The ratio of output and input is 2.42 and the formula the fertilizer is as follows, urea 13.6kg·667m^-2 ,ordinary calcium 31.25kg·667m^-2 ,potassium chloride 13.3kg·667m^-2.

关 键 词：玉米 氮 磷 钾 施肥量 桐梓 

分 类 号：S513[农业科学—作物学]