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沃特和PAM施用方式对土壤水分及玉米生长的影响
引用本文:杜社妮,白岗栓,赵世伟,吴瑞俊.沃特和PAM施用方式对土壤水分及玉米生长的影响[J].农业工程学报,2008,24(11):30-35.
作者姓名:杜社妮  白岗栓  赵世伟  吴瑞俊
作者单位:西北农林科技大学水土保持研究所,杨凌,712100;中国科学院水利部水土保持研究所,杨凌,712100
基金项目:国家"十一五"科技支撑项目,国家"863"计划项目
摘    要:为了鉴别沃特保水剂和PAM不同施用方式的施用效果,在陕北黄土丘陵沟壑区开展了撒施、沟施、穴施对土壤水含量和玉米生长影响的田间试验。结果表明不同施用方式提高了0~10cm土层土壤水含量,而30~40cm土层土壤水含量则随降水量的多少呈现出不同的规律性。随着玉米的生长,不同施用方式影响的土层深度逐渐加深,从三叶期0~50cm土层增加到成熟期的0~200cm土层,土壤水含量表现为沟施、穴施高于撒施,撒施高于对照。3种施用方式对玉米出苗无显著影响,但均提高了玉米生物量、籽粒产量、水分利用效率,降低了玉米的耗水量,其中沟施、穴施的效果强于撒施。沃特、PAM相同施用方式对土壤水含量和玉米生长无显著影响,且沟施和穴施之间无显著性差异,但沃特单位施用量单位面积的增产量高于PAM。玉米生产中,沃特、PAM应以沟施或穴施为主。

关 键 词:土壤水含量  施用方式  沃特保水剂  PAM  玉米  生长状况
收稿时间:2007/10/25 0:00:00
修稿时间:2008/10/20 0:00:00

Effects of Wote super absorbent and PAM with different application methods on soil moisture and maize growth
Du Sheni,Bai Gangshuan,Zhao Shiwei and Wu Ruijun.Effects of Wote super absorbent and PAM with different application methods on soil moisture and maize growth[J].Transactions of the Chinese Society of Agricultural Engineering,2008,24(11):30-35.
Authors:Du Sheni  Bai Gangshuan  Zhao Shiwei and Wu Ruijun
Institution:1.Institute of Soil and Water Conservation,Northwest Agriculture and Forestry University,Yangling 712100,China; 2.Institute of Soil and Water Conservation,Chinese Academy of Sciences and Ministry of Water Resources,Yangling 712100,China,1.Institute of Soil and Water Conservation,Northwest Agriculture and Forestry University,Yangling 712100,China; 2.Institute of Soil and Water Conservation,Chinese Academy of Sciences and Ministry of Water Resources,Yangling 712100,China,1.Institute of Soil and Water Conservation,Northwest Agriculture and Forestry University,Yangling 712100,China; 2.Institute of Soil and Water Conservation,Chinese Academy of Sciences and Ministry of Water Resources,Yangling 712100,China and 1.Institute of Soil and Water Conservation,Northwest Agriculture and Forestry University,Yangling 712100,China; 2.Institute of Soil and Water Conservation,Chinese Academy of Sciences and Ministry of Water Resources,Yangling 712100,China
Abstract:
Keywords:soil moisture  application methods  Wote super absorbent  PAM  maize  growth condition
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