菜用脱毒马铃薯肥料效应试验

摘要

对菜用脱毒马铃薯宣薯3号进行“3414”肥料效应试验.结果表明,马铃薯宣薯3号最佳施肥量为高肥力地块施N 200.6 kg/hm2、P2O5 129.3 kg/hm2、K2O 215.3 kg/hm2,马铃薯产量可达10777.1 kg/hm2;中肥力地块施N 183.8 kg/hm2、P2O5 128.3 kg/hm2、K2O 83.6 kg/hm2,马铃薯产量可达13713.0 kg/hm2;低肥力地块施N 74.1 kg/hm2、P2O5 87.0 kg/hm2、K2O 29.1 kg/hm2,马铃薯产量可达9070.8 kg/hm2.%The fertilizer effect on a virus-free vegetable potato cullivar, Xuanbhu No. 3, was studied through "3414" experiment. The results showed that the optimum N, P2O5, and K2O application dose were 200.6, 129.3, and 215.3 kg/hm2 respectively in high fertility soils, under this condition, the yield of the potato cultivar could reach 10 777.1 kg/hm2 The optimum application dose of N, P2O5, and K2O in meddle fertility soils were 192.9, 183 8, and 83.6 kg/hm2 respectively; and in low fertility soil were 74.1, 87.0, and 29.1 kg/hm2 respectively; and the corresponding yields were 13 713.0 kg/hm2 and 9 070.8 kg/hm2 respectively.