Effect of Soil Water about Different Tillage Methods in Arid Plain Land in Shaanbei Hilly Gully Region

Zhang Xingchang; Lu Zongfan

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Effect of Soil Water about Different Tillage Methods in Arid Plain Land in Shaanbei Hilly Gully Region

- Effect of Soil Water about Different Tillage Methods in Arid Plain Land in Shaanbei Hilly Gully Region
- Bulletin of Soiland Water Conservation Vol. 13, Issue 1, Pages: 38-42(1994)
- 作者机构：
  
  中国科学院水利部西北水土保持研究所
- 作者简介：
- 基金信息：
- DOI：
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- Published：1994
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Zhang Xingchang, Lu Zongfan. Effect of Soil Water about Different Tillage Methods in Arid Plain Land in Shaanbei Hilly Gully Region[J]. Bulletin of Soiland Water Conservation, 1994, 13(1): 38-42.
DOI：

Zhang Xingchang, Lu Zongfan. Effect of Soil Water about Different Tillage Methods in Arid Plain Land in Shaanbei Hilly Gully Region[J]. Bulletin of Soiland Water Conservation, 1994, 13(1): 38-42. DOI：

摘要

利用一元四次方程模型能很好模拟川旱地小麦不同耕作法的土壤水分动态及耗水量动态规律

根据回归曲线将土壤水分动态分为四个阶段

不同耕作法在不同阶段失墒量显然不同。小麦在整个生育期土壤失墒量趋势为：垄沟＋覆盖>平播＋覆盖>平播>垄沟。同时认为

小麦生育前期耗水量对产量贡献甚微

生育后期耗水量对产量贡献较大。垄沟耕作在小麦生育前期比平播的水分损耗要多

垄沟的增产作用主要表现在生长后期

为了避免生长前期失墒量及耗水量较大

应该配合碎麦草覆盖

使垄沟耕作发挥巨大的增产作用。覆盖及垄沟耕作具有明显的增产效果

因而

应该积极推广冬小麦碎麦草覆盖耕作及垄沟耕作。

Abstract

The dynamic changes of coil water and l

"s of water consumption in the field growth wheat with four different till:

ge method were .imulated by the linear regression equation model in arid plain land .lay the linear equation the dynamic change

of soil water are divided into }f stays and the different tillages of wheat have different consuming water amount in the same stage abviosely. The sequence of the water consumption of wheat in whole growth period are as follow

:ridge tillage with stubbe mulch >conservational tillage with stubbe mulch>conservational tillage>ridge. At the same time，the relationship between wheat yield and water consumption amount in earlier growth period is bigger than that in the latter period .the consuming water amount of ridge tillage in earlier stage is bigger than of the conscrvational tillage .and the increasing-yield effect of ridge tillage is responsive to the latter stage of wheat. In order to avoid the consuming water of earlier stage.the ridge tillage should cooperated with stubbe mulch.

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