| 缓释型保水剂对土壤物理性状作用及油菜增产效果的研究 |
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| 引用本文： | 朱林,韩文节,於忠祥,冯贵良,曹海生,孙庆业.缓释型保水剂对土壤物理性状作用及油菜增产效果的研究[J].土壤通报,2006,37(4):644-647. |
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| 作者姓名： | 朱林 韩文节 於忠祥 冯贵良 曹海生 孙庆业 |
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| 作者单位： | 1. 安徽农业大学,资源与环境学院,安徽,合肥,230036
2. 安徽大学,生命科学学院,安徽,合肥,230039 |
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| 基金项目： | 国家农业综合开发办公室农业科技开发基金;安徽省合肥市科技局科研项目 |
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| 摘 要： | 田间小区试验对施用缓释型保水剂、保水剂、常规肥料下土壤物理性状及油菜生长进行了研究。结果表明,缓释型保水剂为植株提供适宜的水分条件,促进了作物生长,油菜产量增加;缓释型保水剂具有保水和持水性能,提高了土壤水分含量,同时改善了土壤物理性状,降低土壤容重,使土壤孔隙数量增加,提高了土壤总孔隙度,尤其增加了非毛管孔隙度,增强了土壤通气性能;缓释型保水剂增加了土壤中大于0.25mm团聚体的数量,从而提高了土壤通气性,同时也增加了土壤中2mm以上的团聚体数量,提高了土壤的抗蚀性。
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| 关 键 词： | 缓释型保水剂 土壤物理性状 油菜增产 |
| 文章编号： | 0564-3945(2006)04-0644-04 |
| 修稿时间： | 2005年6月6日 |
Effects of Slow Release Water - retaining Reagent on Soil Physical Properties and Rape Yield |
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| ZHU Lin,HAN Wen-jie,YU Zhong-xiang,FENG Gui-liang,CHAO Hai-sheng,SUN Qin-ye.Effects of Slow Release Water - retaining Reagent on Soil Physical Properties and Rape Yield[J].Chinese Journal of Soil Science,2006,37(4):644-647. |
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| Authors: | ZHU Lin HAN Wen-jie YU Zhong-xiang FENG Gui-liang CHAO Hai-sheng SUN Qin-ye |
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| Abstract: | Soil physical properties and rape growth were investigated in the field experiment.The resuts showed that release waterretaining reagent provided fitting conditions of moister for the vegetable,improved rape growth and enhanced the yield of rape.water-retaining reagent of relaxed releasing had the capability of retaining and holding soil water,which improved soil physical properties,increased the pore amount in soil and decreased bulk density of the soil.It can enhance the total porosity,especially non-capillary porosity,so it can improve aeration of the soil.Waterretaining reagent of relaxed releasing in creased the amount of water-stable aggregates bigger than 0.25mm so that it advanced aeration of the soil.It could also increase the amount of water-stable aggregate bigger than 2 mm,therefore,improved erode resistance. |
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| Keywords: | Show relase water-retaining reagent Physical properties of the soil Rape-yield increase |
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