| 复合保水剂的水肥调控模拟及其肥效研究 |
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| 引用本文： | 李世坤,毛小云,廖宗文.复合保水剂的水肥调控模拟及其肥效研究[J].水土保持学报,2007,21(4):112-116. |
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| 作者姓名： | 李世坤 毛小云 廖宗文 |
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| 作者单位： | 华南农业大学,资源环境学院,广东,广州,510640 |
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| 基金项目： | 国家自然科学基金;国家科技支撑计划;广东省科技厅科技计划 |
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| 摘 要： | 利用土柱模拟试验和盆栽试验研究了复合保水剂对水肥淋失和玉米农艺性状的影响,土柱试验结果表明,加入复合保水剂后能够较对照减少淋出液体积,显著降低氮磷钾的累计淋溶率;盆栽试验结果表明,施用复合保水剂能够显著提高玉米的生物学产量和肥料的利用率.
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| 关 键 词： | 复合保水剂 溶出率 肥料利用率 玉米 |
| 文章编号： | 1009-2242(2007)04-0112-05 |
| 修稿时间： | 2007年4月5日 |
Study on Water-Fertilizer Controlling Effect and Efficiency of Complex Super Absorbent Polymers in Soil |
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| LI Shi-kun,MAO Xiao-yun,LIAO Zong-wen.Study on Water-Fertilizer Controlling Effect and Efficiency of Complex Super Absorbent Polymers in Soil[J].Journal of Soil and Water Conservation,2007,21(4):112-116. |
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| Authors: | LI Shi-kun MAO Xiao-yun LIAO Zong-wen |
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| Abstract: | This paper studied the effects of complex super absorbent polymers on nitrogen and water leaching and agriculture character of the maize through soil column test and pot experiment.The soil column test showed that the volume of eluviations was reduced;the accumulative leaching losses of soil nitrogen,phosphorus and kalium were depressed in treatment with complex super absorbent polymers.The pot experiment showed that the biomass of maize and fertilizer use efficiency was increased visibly in treatment with Complex super absorbent polymers. |
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| Keywords: | complex super absorbent polymers dissolving rate fertilizer use efficiency maize |
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