| 地膜覆盖栽培水稻的密度对比试验 |
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| 引用本文： | 徐国环,何长水.地膜覆盖栽培水稻的密度对比试验[J].安徽农业科学,2008,36(1):167-168. |
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| 作者姓名： | 徐国环 何长水 |
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| 作者单位： | 上饶师范学院,江西上饶,334001 |
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| 摘 要： | 目的]为摸索地膜覆盖技术条件下的水稻最佳栽插密度。方法]以汕优63为试验品种,开展6个不同密度之间的产量等性状对比试验。结果]生育期及主要经济性状:各种密度之间生育期变化不大;不同密度处理的结实率与千粒重差异不大;基本苗及有效穗以27 cm×20 cm的为最高,并随着密度的下降而逐渐下降,以33 cm×57 cm的为最低;平均每穴最高苗及有效穗则相反,以低密度33 cm×57 cm的为最高,并随着密度的增加而逐渐下降,以最高密度27 cm×20 cm的为最低;每穗总粒数及实粒数以33 cm×57 cm的为最多,并随着密度的增加而逐渐减少,以27 cm×20 cm的为最少。产量表现:不同密度处理间产量差异较大,其中以33 cm×27 cm的单产为最高,其次是27 cm×20 cm的;处理33 cm×57 cm的单产为最低。结论]地膜覆盖栽培水稻以33 cm×27 cm为最佳密度。
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| 关 键 词： | 地膜覆盖 水稻 密度 试验 |
| 文章编号： | 0517-6611（2008）01-00167-02 |
| 收稿时间： | 2007-07-04 |
| 修稿时间： | 2007年7月4日 |
Density Comparative Test on Rice Cultivated by Plastic Film Mulching |
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| XU Guo-huan.Density Comparative Test on Rice Cultivated by Plastic Film Mulching[J].Journal of Anhui Agricultural Sciences,2008,36(1):167-168. |
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| Authors: | XU Guo-huan |
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| Abstract: | Objective] The research aimed to explore the optimum transplanting density of rice under the conditions of using plastic film mulching technology.Method] With Shanyou 63 as tested variety,a comparative test was made on the characteristics such as the yield among different densities.Result] Analysis on the growth stage and main economic characteristics showed the growth stage among various densities changed little,the differences of the seed setting rate and 1000-grain weight among different density treatments were not great,the basic seedling and its effective panicles were highest in the treatment of 27 cm × 20 cm,and they were gradually decreased with the decreasing of density with that in the treatment of 33 cm × 57 cm being lowest.The average highest seedlings and effective panicles per hole were on the contrary,that in the treatment with low density of 33 cm × 57 cm was highest and gradually decreased with the increment of density,and that in the treatment with highest density 27 cm × 20 cm being lowest.Total grain number per spike and filled grain number were most in the treatment of 33 cm × 57 cm and they were decreased with the increment of density with that in the treatment of 27 cm×20 cm being least.The yield showed that the yield among different density treatments had greater differences,among which the unit yield in the treatment of 33 cm × 27 cm was highest and that in the treatment of 27 cm × 20 cm was next and that in the treatment of 33 cm×57 cm was lowest.Conclusion] The optimum density of rice cultivated by plastic film mulching is 33 cm × 27 cm. |
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| Keywords: | Plastic film mulching Rice Density Test |
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