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Position: Home > Articles > The Effect of Stocking Density of Chinese Mitten Crab on Yields of Rice and Crab in Rice-crab Culture System Hubei Agricultural Sciences 2010,49 (7) 1677-1680

稻蟹共生系统河蟹放养密度对水稻和河蟹的影响

作  者:
吕东锋;王武;马旭洲;陈再忠;于永清;李长军;闫百文
单  位:
上海海洋大学水产与生命学院;辽宁省盘山县胡家镇水产技术推广站;辽宁省盘山县河蟹技术研究所
关键词:
稻田养蟹;放养密度;经济效益
摘  要:
采用稻田陆基围隔方法,研究了成蟹放养密度对水稻产量、河蟹生长以及产量的影响,并对稻田放养不同密度的河蟹进行了经济效益分析。结果表明,河蟹的放养密度对稻田土壤化学指标影响不显著(P>0.05);河蟹的放养密度对河蟹的产量影响极显著(P<0.01);放养不同密度河蟹对水稻产量影响不显著(P>0.05);经济效益分析的结果表明,0.75只/m2稻田养蟹的净利润最高,而其他各组差异显著(P<0.05)。稻田养殖成蟹的最佳放养密度为0.75只/m2左右。
译  名:
The Effect of Stocking Density of Chinese Mitten Crab on Yields of Rice and Crab in Rice-crab Culture System
作  者:
L Dong-feng1,WANG Wu1,Ma Xu-zhou1,CHEN Zai-zhong1,YU Yong-qing2,LI Chang-jun3,YAN Bai-wen3 (1.College of Fisheries and Life, Shanghai Ocean University, Shanghai 201306; 2.Panshan County Technology Institute of Crab, Panjin 124000,Liaoning,China; 3.Hujia Fisheries Technology Extension Station of Panshan County,Panjin 124100,Liaoning,China)
关键词:
rice-crab culture; stocking density;economic benefit
摘  要:
This paper aims to do a research, by the means of rice land-based enclosure method, on the stocking density of crab's effects on rice yield, growth and production of crabs, and do an economic benefit analysis about different stocking density of crab in paddy fields.The stocking density of crab was set by three kinds, that was, 0.45,0.75 and 1.05 inds per m2.The results showed: Chemical indexes of soil in the paddy field were not significantly affected by the stocking density of crabs (P>0.05); The yield of crabs was significantly affected by the stocking density (P<0.01); Different stocking densities had not an significant effect on rice yield (P>0.05); The size of 0.75 inds crab in each square meter for net profit was the highest while the other two had almost the same profit (P<0.05).These results showed that the optimal stocking density of crab in paddy fields was 0.75 inds crab in each square meter.

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