【摘要】 试验以杂交玉米黔单24为试材,采用四因素五水平二次回归正交旋转组合设计,研究种植密度及氮磷钾肥施用量对玉米产量的影响。研究结果表明,在黔西南地区杂交玉米黔单24单产达到730.27kg/667m2以上的最佳高产栽培措施为:种植密度4170~4294株/667m2,氮肥22.78~25.7kg/667m2,磷肥13.75~16.25kg/667m2,钾肥9.335~11.005kg/667m2。更多还原

【Abstract】 Quadratic regression orthogonal rotational and single-factor randomized block design were adopted,and effects of planting density,fertilization and seed coating on main agronomic traits and yield were researched in order to support techniques for high-yield cultivation of hybrid maize cultivar,Qiandan24.The results showed that the optimized cultivation techniques of Qiandan 4for high-yield were that the planting density,N fertilizer,P fertilizer and K fertilizer were 4170-4294plants/667m2,22.78-25.7kg/667m2,13.75-16.25kg/667m2 and 9.335-11.005kg/667m2,respectively.更多还原