[1]晋凡生,张宝林.旱塬地玉米农田免耕覆盖的土壤环境效应[J].水土保持研究,2000,7(04):60-64.
　JIN Fansheng,ZHANG Baolin.The Effects of No tillage with Mulch on Soil Environment for Maize Dryland[J].Research of Soil and Water Conservation,2000,7(04):60-64.
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旱塬地玉米农田免耕覆盖的土壤环境效应

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 7 期数: 2000年04期 页码: 60-64 栏目: 出版日期: 1900-01-01
Title:
The Effects of No tillage with Mulch on Soil Environment for Maize Dryland
作者:
晋凡生1, 张宝林2
1. 山西省农业科学院旱地农业研究中心, 太原030031;
2. 山西省农业科学院农业资源综合考察研究所, 太原030006
Author(s):
JIN Fansheng1, ZHANG Baolin2
1. Arid Farming Research Centre, Shanxi Academy of Agricultural Sciences, Taiyuan 030031, PRC;
2. Institute of Agricultural Resources Comprehensive Expedition, Shanxi Academy of Agricultural Sciences, Taiyuan 030006, PRC
关键词:
旱塬地; 免耕覆盖; 玉米; 土壤环境
Keywords:
dryland; no tillage with mulch; corn; soil environment
分类号:
S513.048
摘要:
免耕覆盖4500kg/hm2以上的处理比传统耕作增产22.15%～25.65%.土壤水分利用率提高2.9625kg/（mm·hm2）.春播前0～200cm土层速动易效水含量比传统耕作增加17.02～47.9mm.距地表5，10，15cm处的地积温与覆盖量呈极显著直线负相关.0～10cm土壤容重随覆盖量增加而减小.土壤有机质、全N、速效P与覆盖量呈极显著直线回归关系.脲酶比传统耕作增加幅度为0.04～0.48mg/g，碱性磷酸酶增幅为0.05～1.08m
Abstract:
Under the condition of no tillage with mulch which amount was above 4 500 kg/hm2,increase of corn yields was 22.15%~25.65%; the water utilized coefficient of soil can increase 2.962 5 kg/(mm·hm2); compared the treatments of no tillage with mulch to the traditional tillage,the contents of quick moving available water in 0~200 cm soil layers can increase 17.02~47.9 mm before spring sowing.There was a significant negative correlation between earth cumulative temperature in 5,10,15 cm soil layers and the amounts of stalk mulch;the more the mulch amounts were,the less the volume weight in 0~10 cm soil layers was; the significant relations of linear regression were formed between organic substance,total N,available P and mulch amounts.Compared the treatments of no tillage with mulch to the traditional tillage,amounts increased of urease,basic phosphatase,invertase were 0.04~0.48 mg/g,0.05~1.08 mg/g and 1.7~12.8 mg/g; there was a significant linear correlation between the three kinds of enzyme and the amounts of mulch.

参考文献/References:

[1] 张宝林,等.旱塬地玉米免耕覆盖耕作试验研究[J].山西农业大学学报,1994,14(1):43～51
[2] 晋凡生,等.旱塬地玉米降水生产潜势及其提高途径的研究[J].华北农学报,1995,10(增刊):35～40
[3] 张宝林,等.旱塬地玉米深松——免耕覆盖、施肥模式化研究[J].华北农学报,1995,10(增刊):23～29
[4] 陈奇恩,等.黄土高原残塬沟壑区高效农业生态系统发展研究[J].山西农业科学,1993,21(3):1～8
[5] 山仑,等.黄土高原旱地农业的理论与实践[M].北京:科学出版社,1993

备注/Memo

收稿日期:2000-10-13
基金项目:国家“九五”科技攻关项目黄土高原水土流失区农业综合发展技术研究第6专题——晋西残塬区高产型农业综合发展研究（96-004-05-06）的内容.

更新日期/Last Update: 1900-01-01