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Chinese Agricultural Science Bulletin ›› 2015, Vol. 31 ›› Issue (4): 99-104.doi: 10.11924/j.issn.1000-6850.2014-1920

Special Issue: 园艺

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The Mathematics Model on Balanced Fertilization of N, P and K for the Content of Vc in Melon

Zhang Zhaohui1,2, Jiang Yuping1, Yang Xiaofeng1, Zuo Enqiang1, Chen Chunhong1   

  1. (1Comprehensive Test House in Zhuanghang, Shanghai Academy of Agricultural Sciences, Shanghai 201415; 2Shanghai Key Laboratory of Protected Horticultural Technology, Shanghai 201415)
  • Received:2014-07-11 Revised:2014-11-17 Accepted:2014-11-18 Online:2015-03-20 Published:2015-03-20

Abstract: The article aims to study the effect of balanced fertilization of nitrogen, phosphorus and potassium on the Vc content of melon by means of quadratic component rotational design. The mathematic model of balanced fertilization was established. The optimal quantity of fertilizer, the effect of single factor and the interaction effect were studied. The results showed that N and P, N and K, and P and K had significant interaction effects, and the right fertilization ratio could improve the Vc of melon fruit. According to the analysis, the ratio of N:P:K was 2.03:1:3.36, and the amount of N, P2O5 and K2O was 157.5, 77.4 and 260.38 kg/hm2, respectively, and the Vc of melon fruit was 25.32 mg/100 g.