| 吕雯,汪有科.不同秸秆还田模式冬麦田土壤水分特征比较[J].干旱地区农业研究,2006,(3):68~71 |
| 不同秸秆还田模式冬麦田土壤水分特征比较 |
| tudy on soil moisture of different tillage measures under straw mulch |
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| DOI：10.7606/j.issn.1000-7601.2006.03.14 |
| 中文关键词: 保墒秸秆覆盖 耕作方式 冬小麦 土壤水分 |
| 英文关键词:straw mulch tillage measures wheat field soil moisture |
| 基金项目:“国家“863”节水农业重大专项(2002AA2Z4211) |
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| 中文摘要: |
| 在陕西杨凌区布设田间试验,在冬小麦发育期间观测5种不同玉米秸秆覆盖与耕作方式相结合模式的土壤水分特征。结果表明5种覆盖耕作模式的土壤水分垂直变异系数大小排列为传统翻耕(0.1376)>浅旋覆盖(0.1360)>传统覆盖(0.1309)>深翻覆盖(0.1265)>免耕留茬(0.1167);免耕覆盖土壤水分贮存量(342 mm)最高,以浅旋覆盖(289 mm)、传统翻耕(287 mm)土壤水分贮存量相对为低,深翻覆盖(307 mm)、传统覆盖(300 mm)土壤水分贮存量相对居中。 |
| 英文摘要: |
| The experiment was conducted at Yangling.During the growth period of winter wheat.Five tillage modes under straw mulch were disposed in the field,including stalk returning farmland and shallow plowing,conventional tillage,deep plowing under straw mulch,low stubble of corn,conventional tillage under straw mulch.During the growth period of winter wheat,soil moisture from 0 to 100 cm depth of low stubble of corn is the highest in the five modes,that of conventional tillage is the lowest,deep plowing under straw mulch is less than low stubble,and that of stalk returning farmland and conventional tillage under straw mulch was moderate. |
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