Influences of Different Water and Nitrogen Application on Yield, WUEY and NUE in Solar Greenhouse

  • MI Guo-quan ,
  • CHENG Zhi-fang ,
  • ZHAO Xiao-bin ,
  • HAN Yong-ping ,
  • WANG Jin-hua ,
  • REN Hua-zhong
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  • 1. Horticultural Institute, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China;
    2. College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China

Received date: 2013-03-06

  Online published: 2014-10-14

Abstract

Influences of 2 water levels and 3 nitrogen levels reciprocally application on water use efficiency (WUEY) and nitrogen use efficiency(NUE) were studied in tomato(cv. Skala) solar greenhouse under similar yield as compared with the conventional method.The results showed that: The increasing effect of three factors on tomato yield was in an order of N > H2 O.There were interactions between the two factors.WUEY was significantly affected by both irrigation and nitrogen amount.Under W1(4 541. 0 m3 /ha),as the levels of nitrogen amount increased,the WUEY also increased, but no significant difference among the WUEYS.Under W2(2 270. 5 m3 /ha),N2(373. 77kg /ha) was not significant different from N1.Under the same amount of nitrogen,as the amount of irrigation in- creased,the WUEY decreased. N loss percentage was not distinctly affected by water,but strongly affected by the a- mount of nitrogen.Rational water and nitrogen can reduce N loss percentage effectively.

Cite this article

MI Guo-quan , CHENG Zhi-fang , ZHAO Xiao-bin , HAN Yong-ping , WANG Jin-hua , REN Hua-zhong . Influences of Different Water and Nitrogen Application on Yield, WUEY and NUE in Solar Greenhouse[J]. Acta Agriculturae Boreali-Sinica, 2013 , 28(4) : 174 -178 . DOI: 10.3969/j.issn.1000-7091.2013.04.032

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