HUBEI AGRICULTURAL SCIENCES ›› 2019, Vol. 58 ›› Issue (14): 160-166.doi: 10.14088/j.cnki.issn0439-8114.2019.14.038

• Economy & Management • Previous Articles     Next Articles

The economic effects and ecological effects of the rice-crayfish integrated systems in Jianghan plain

CHEN Wen-hui1, PENG Liang2, LIU Ying-ying2, LI Gu2, YAO Yan-hong2   

  1. 1.Hubei Agricultural Science and Technology Personnel Office,Wuhan 430070,China;
    2.Yangtze River Fisheries Research Institute,Chinese Academy of Fishery Sciences,Wuhan 430223,China
  • Received:2019-04-01 Online:2019-07-25 Published:2019-12-06

Abstract: Based on the survey of rice-crayfish integrated systems from seven town in Jianghan plain in 2018, the current status and its problems of the development in rice-crayfish integrated systems were investigated. The production inputs, economic benefits, fertilizer and the disease and insect pests were analyzed and suggestions for the future development of rice-crayfish integrated systems were provided. Results show that the number of area and organizations are growing rapidly in recent years, especially in nearly three years. The expenses of land circulation, purchasing parental crayfish and formula feed are the mainly part of the total cost in the system, while the expenses of renting reaping machine, digging ditches and employment consist the secondary part of the total cost. Compared with the rice monoculture, the rice-crayfish integrated systems had lower application amount of nitrogen fertilizer and phosphate fertilizer, while the application amount of potash fertilizer and compound fertilizer remained basically unchanged. Although the occurrence rate of insect pests decreased in rice-crayfish integrated systems compared with the rice monoculture, the occurrence rate of disease in rice increased oppositely. This investigation revealed the key problems in the development of the rice-crayfish integrated system, and provided scientific basis for the sustainable development of this system.

Key words: rice-crayfish integrated system, economic effect, ecological effect, budgeting control, Jianghan plain

CLC Number: