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Chinese Agricultural Science Bulletin ›› 2016, Vol. 32 ›› Issue (36): 198-204.doi: 10.11924/j.issn.1000-6850.casb16010134

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Research Progress of Nutrient Management in Three Paddy-upland Rotating Systems

Liu Chuang1,2, Chen Fang1,3, Liu Yi1, Li Zhiguo1, Zhang Guoshi1, Xie Juan1   

  1. (1Key Laboratory of Aquatic Botany and Watershed Ecology, Chinese Academy of Sciences/Wuhan Botanical Garden, Wuhan 430074; 2University of Chinese Academy of Sciences, Beijing 100049; 3Wuhan Office of International Plant Nutrition Institute, Wuhan 430074)
  • Received:2016-01-27 Revised:2016-12-12 Accepted:2016-03-21 Online:2016-12-26 Published:2016-12-26

Abstract: Based on the investigation results of three major paddy-upland rotations (rice-wheat, rice-rapeseed and rice-maize rotation) in Yangtze River valley of China, the authors discussed the nutrient input and management characteristics, nutrient input variety, nutrient input amount and proportion of base fertilizer and additional fertilizer in these three rotations. The results showed that the fertilizer input rates and proportions for rice growing season of the three rotations were different. In rice-maize rotation, rice obtained the lowest proportion (47.8%) of the total fertilizer input, while rice obtained 51.4% and 54.7% of the total fertilizer input in rice-rapeseed rotation and rice-wheat rotation, respectively. Compared with the other two rotations, rice-maize rotation showed significant advantages on grain yield, economic benefit and fertilizer use efficiency, and this rotation system had great potential in this region in the future.