摘要
采用"3414"试验设计,进行了马铃薯肥料效应试验,建立了氮磷钾肥料效应回归模型y=559.481 8+26.342 3N+45.763 6P+95.082 4K+8.333 8NP+0.892 1NK+1.684 2PK-6.394 7N2-8.433 9P2-3.897 2K2。最大施肥量为:N129.5 kg/hm2,P2O5127.2kg/hm2,K2O 225.3 kg/hm2,理论上可获得马铃薯产量为23 716.7 kg/hm2。最佳施肥量为:N105.9 kg/hm2,P2O5107.6kg/hm2,K2O 201.4 kg/hm2,理论上可获得马铃薯产量为23 458.3 kg/hm2。
Using ＂3414＂ experiment design,the potato fertilizer effect test was conducted.NPK expected effect regression model was y=559.481 8＋26.342 3N＋45.763 6P＋95.082 4K＋8.333 8NP＋0.892 1NK＋1.684 2PK-6.394 7N2-8.433 9P2-3.897 2K2.The biggest fertilizer rate was：N 129.5 kg/hm2,P2O5127.2 kg/hm2,K2O 225.3 kg/hm2,potato yield obtained theoretically was 23 716.7 kg/hm2.The best fertilizer rate was：N 105.9 kg/hm2,P2O5 107.6 kg/hm2,K2O 201.4 kg/hm2,23 458.3 kg/hm2 could be obtained theoretically.
出处
《宁夏农林科技》
2013年第4期39-41,共3页
Journal of Ningxia Agriculture and Forestry Science and Technology
