| 不同水分条件下保水剂对小麦产量和水分利用的影响 |
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| 引用本文： | 武继承,郑惠玲,史福刚,杨占平.不同水分条件下保水剂对小麦产量和水分利用的影响[J].华北农学报,2007,22(5):40-42. |
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| 作者姓名： | 武继承 郑惠玲 史福刚 杨占平 |
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| 作者单位： | 1. 河南省农业科学院植物营养与资源环境研究所,河南,郑州,450002
2. 河南省土壤肥料站,河南,郑州,450002 |
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| 基金项目： | 国家“863”项目(2002AA2Z4291)，河南省重点科技攻关项目(0423102600) |
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| 摘 要： | 研究了不同水分条件下保水剂对小麦增产的效应,结果表明,施用保水剂可以增加小麦穗长和穗粒数、提高千粒重,从而提高小麦产量。不灌水条件下施用保水剂可增产8.42%~22.75%,以60 kg/hm2和45 kg/hm2处理较好;灌一水条件下施用保水剂可增产10.86%~19.86%,以45 kg/hm2处理最好;灌二水条件下施用保水剂可增产10.79%~18.42%。水分利用率在不同处理间也有很大差异,不灌水条件下施用保水剂降水利用率分别提高1.11~2.99kg/(mm.hm2),以60 kg/hm2处理提高最多;灌一水条件下施用保水剂时灌水利用率分别增加0.063~0.206 kg/m3,以30kg/hm2处理最高;灌二水条件下施用保水剂灌水利用率分别增加0.029~0.192 kg/m3,以90 kg/hm2处理提高最多。说明保水剂对旱地小麦产量和水分利用率的提高具有积极效果,并表现为水分匮乏时显著,充分时减弱的特点。
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| 关 键 词： | 保水剂 小麦 增产效应 水分利用率 |
| 文章编号： | 1000-7091（2007）05-0040-03 |
| 修稿时间： | 2007-03-08 |
Effect of Water-retaining Agent on Wheat Production and Water Utilization under Different Moisture Conditions in Dryland |
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| WU Ji-cheng,ZHENG Hui-ling,SHI Fu-gang,YANG Zhan-ping.Effect of Water-retaining Agent on Wheat Production and Water Utilization under Different Moisture Conditions in Dryland[J].Acta Agriculturae Boreali-Sinica,2007,22(5):40-42. |
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| Authors: | WU Ji-cheng ZHENG Hui-ling SHI Fu-gang YANG Zhan-ping |
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| Institution: | 1. Institute of Plant Nutrition and Resource Environment, Henan Academy of Agriculture Sciences, Zhengzhou 450002, China; 2. Henan Work Station of Soil and Fertilizer, Zhengzhou 450002, China |
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| Abstract: | On the study of nutrient water-retaining agent on wheat production and water utilization under different moisture conditions,the results showed nutrient water-retaining agent could improve wheat spike length,spike grains,1 000 grain weight and yield.The yield of nutrient water-retaining agent treatments could be increased 8.42%-22.75%under no irrigated condition,the treatment of 60 kg/ha was the best one.The yield of nutrient water-retaining agent treatments could be increased 10.86%-19.86%under once irrigated condition,the treatment of 45 kg/ha was the best one.The yield of nutrient water-retaining agent treatments could be increased 10.79%-18.42%under twice-irrigated condition,the difference was reduced among the treatments of nutrient water-retaining agent.However,the efficiency of precipitation and irrigated water utilization also had notable difference among different volume of treatment nutrient water-retaining agent treatments under different moisture conditions,which had the same tendency to the production increased.In a word,the application of nutrient water-retaining agent had a positive role on wheat production and the efficiency of water utilization. |
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| Keywords: | Nutrient water-retaining agent Wheat Increase production effect Efficiency of water utilization |
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