密度、施肥对马铃薯产量的影响

Effects of Planting Density and Fertilization on Yield of Potato

采用二因素随机区组试验设计方法,对马铃薯与玉米间作获得高产的最佳施肥水平和密度水平组合进行研究。结果表明：在栽培密度为2753～3070穴/667m^2范围内,施农家肥2500kg/667m^2、磷肥40kg/667m^2、钾肥20kg/667m^2、尿素7.5kg/667m^2,马铃薯单产最高,比农家肥1 500kg/667m^2、磷肥20kg/667m^2单产高47%。

2factors randomized block design was applied on study of appropriate fertilization level and planting densities on yield of potato in potato-maize intercropping.The results showed that planting densities fange from 2753～3070plants/667m^2,the fertilization rate of manure,P fertilizer,K fertilizer,Urea at 2500kg/667m^2,40kg/667m^2,20kg/667m^2,7.5kg/667m^2,respectively.The yield of which is the highest,it＇s 47% higher than fertilization of manure,P fertilizer at 1500kg/667m^2,20kg/667m^2.