Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2014, Vol. 30 ›› Issue (12): 176-180.doi: 10.11924/j.issn.1000-6850.2013-2218

Special Issue: 水稻

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Application of Different Release Duration Control-released Urea Combined with Conventional Urea on Rice

  

  • Received:2013-08-19 Revised:2013-09-13 Online:2014-04-25 Published:2014-04-25

Abstract: The aim to research the effects of control released urea and common urea on rice yield and fertilizer use efficiency, in this experiment effect of controlled releasing urea on rice production was investigated by adding different proportions of controlled release urea. The results showed that: in the condition of equal amount of nitrogen, the mixture of common urea and control released urea could increase 7.8%-20.3% of rice yield and increase 8.0%-13.2% of N use efficiency than only application of common urea. Taken together, the best ratio of control released urea to total N was 30%.