肥:分析结果表明:土豆的产量对N具有强线性依赖性,而生菜是对P;最佳施肥方案中N、P、K的用量土豆为292,246,542(公斤/公顷),生菜为213,667,427(公斤/公顷)。对应产量为43.18和23.13吨/公顷,且均在试验范围内达到,可信性强;对土豆,强影响因子依次为N、K、P,对生菜为P、N、K;1.N与产量的关系应用程序如下:N1=[03467101135202259336404471];Y1=[]15.1821.3625.7232.2934.0339.4543.1543.4640.8330.75];plot(N1,Y1,’+’)N2=[0285684112168224280336392];?Y12=[11.0212.7014.5616.2717.7522.5921.6319.3416.1214.11];Plot(N2,Y12,’+’)2.P与产量的关系应用程序如下:P1=[024497398147196245294342];Y2=[04793140186279372465558651];plot(P1,Y2,’*’)P2=[04998147196294391489587685];Y22=[6.399.4812.4614.3317.1021.9422.6421.3422.0724.53];Plot(P2,Y22,’*’)3.K与产量的关系应用程序如下:K1=[04793140186279372465558651];Y3=[18.9827.3534.8638.5238.4437.7338.4343.8742.7746.22];plot(K1,Y3,’*’)K2=[04793140186279372465558651];Y32=[15.7516.7616.8916.2417.5619.2017.9715.8420.1119.40]plot(K2,Y32,’*’)
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