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《Chinese Agricultural Science Bulletin》 2016-21
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Effect of Different Media on Rice Seedling Growth

Zhao Shuang;Liu Kefeng;Gao Chengda;Colllege of Plant Science and Technology;Colllege of Urban & Rural Development, Beijing University of Agriculture;  
It is of great significance to cultivate good and strong rice seedlings using different proportions of media. The authors used four raw materials, vermiculite, perlite, peat and wormcast, and mixed them together according to different proportions for breeding rice seedling. First of all, the different physical and chemicalproperties of the growing media were analyzed, then their effects on rice seedling growth were compared, finallythe best ratio was determined. The results showed that the mixed growing media of domestic peat: sand =2:1and wormcast: domestic peat: sand =2:1:1 were suitable for the growth of rice seedling. Comprehensivecomparison found that weak acid environment was favorable to rice growth, and the rice seedlings grew well indomestic peat. Wormcast could effectively increase the nutrient content, but too much of it would increase thep H value of the growing medium, which was adverse to rice growth. The control of the wormcast amount could replace part of peat to meet the requirement of rice growth.
【Fund】: “十二五”国家科技支撑计划重点项目(2012DAD14B09/1083299009/004);; 北京市教育委员会科技成果转化项目(PXM2014_014207_000080 PXM2016_014207_00011);; 北京市农村工作委员会项目(20150119)
【CateGory Index】: S511
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