Study on Economic Phosphorus Application of Heliogreenhouse Cucumber in Yinchuan Plain

The different fertilizer amount of phosphorus on yield and economic benefits of cucumber were studied.The results showed that phosphorus application was related to increasing yield of heliogreenhouse cucumber in Yinchuan plain.But extra was not obvious for yield.The maximization of yield was 31 kg/667m2,the best for marginal yield and input-output ratio while phosphorus was 15 kg/667 m2.