【摘要】 采用三因子二次通用旋转组合设计,对天水市蔬菜主产区地膜番茄高产高效施肥配方比例进行了研究。结果表明:在甘肃东南天水生态和地膜大田栽培条件下,N、P和N、P、K不同配施,对番茄产量和效益有显著影响,其经济最佳N、P、K施肥量分别为N 177.0Kg/hm2、P2O5 166.5kg/hm2和K2O 184.5kg/hm2,此时其单产可达113163.0 kg/hm2,施肥纯收益可达77597.13元/hm2,施肥成本为1616.97元/hm2,投产比为14∶8.99.更多还原

【Abstract】 By three factors secondary common rotation design,we studied the effect of applying fertilizer on high yield and better beneficial ground mulch tomato cultivation in Tianshui area of Gansu.The results show that the yield and beneficial result was notably different for different combination application fertilizer of N,P or N,P and K in ground mulch tomato cultivation.The best economic combination application fertilizer amount were N 177Kg/hm2,P2O5 166.5kg/hm2 and K2O 184.5kg/hm2.then,the theory tomato yield was 113163Kg/hm2,the applying fertilizer cost was 1616.97 yuan/hm2,the rate of input and output was 1: 48.99.更多还原