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| 稻草还田在双季稻生产中的应用效果研究 | |
| 引用本文： | 曾文伟,石小江,张礼红,石跃才.稻草还田在双季稻生产中的应用效果研究[J].作物研究,2011,25(3):215-217,222. |
| 作者姓名： | 曾文伟 石小江 张礼红 石跃才 |
| 作者单位： | 1. 邵阳市农业科学研究所,湖南邵阳,422000 2. 湖南省瓜类研究所,邵阳,422001 3. 邵阳市农业局,湖南邵阳,422000 |
| 摘 要： | 连续3年的定田试验结果显示,稻草还田的应用效果主要表现在三个方面：一是能够增加土壤养分。与试验前比较,有机质增加0.9 g/kg,全氮增加0.25 g/kg,速效氮磷钾分别增加9,2.8和39 m g/kg;二是能使土壤物理性状明显变优。土壤容重降低0.12 g/cm3,总孔隙度和通气孔隙度分别增加4%和6.8%;三是能提高水稻生产的产投效益。稻草还田与常规施肥比较,有效穗数有所下降,但实粒数、结实率和千粒重明显增加,增产438 kg/hm2,投入成本低1 461.7元/hm2,实际收入增加2 293.9元/hm2,产投比高6.08。 |
| 关 键 词： | 水稻 稻草还田 施肥 产投效益 |
Effects of Rice Straw Backed to Soil in Double Rice Cropping Production |
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| ZENG Wen-wei,SHI Xiao-jiang,ZHANG Li-hong,SHI Yue-cai.Effects of Rice Straw Backed to Soil in Double Rice Cropping Production[J].Crop Research,2011,25(3):215-217,222. | |
| Authors: | ZENG Wen-wei SHI Xiao-jiang ZHANG Li-hong SHI Yue-cai |
| Institution: | ZENG Wen-wei1,SHI Xiao-jiang1,ZHANG Li-hong2,SHI Yue-cai3(1 Shaoyang Municipal Institute of Agricultural Sciences,Shaoyang,Hunan 422000,China,2 Hunan Cucurbitaceae Research Institute,Hunan 422001,3 Agricultural Bureau of Shaoyang City,China) |
| Abstract: | Rice straw recycled back to the soil was done in three consecutive years.The results showed that the effects of this way would increase the soil fertility as the organic matter was increased by 0.9 g/kg,total nitrogen increased by 0.25 g/kg,rapidly available NPK increased by 9 mg/kg,2.8 mg/kg and 39 mg/kg respectively;It also showed that the physics properties of the soil was improved significantly through reducing the soil bulk density by 0.12 g/cm3,total porosity and ventilation porosity increased by 4% a... |
| Keywords: | Rice Rice straw backed to the soil Fertilization Benefit of output to input in rice production |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |