Soil Moisture Dynamics and Crop Yield with Conservation Tillage in Tri-crop Intercropping System of Southwest China

ZOU Cong-ming; HU Xiao-dong; ZHANG Yun-lan; XUE Lan-lan; Shakeel Ahmad Anjum; XIAO Fa-ping; LI Bao-zheng; WANG Long-chang

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Soil Moisture Dynamics and Crop Yield with Conservation Tillage in Tri-crop Intercropping System of Southwest China

- Soil Moisture Dynamics and Crop Yield with Conservation Tillage in Tri-crop Intercropping System of Southwest China
- Bulletin of Soiland Water Conservation Vol. 29, Issue 6, Pages: 69-74(2010)
- 作者机构：
  
  1. 西南大学农学与生物科技学院,重庆,400715
  2. 重庆市云阳县农委,重庆,404500
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2010
- 稿件说明：
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ZOU Cong-ming, HU Xiao-dong, ZHANG Yun-lan, et al. Soil Moisture Dynamics and Crop Yield with Conservation Tillage in Tri-crop Intercropping System of Southwest China[J]. Bulletin of Soiland Water Conservation, 2010, 29(6): 69-74.
DOI：

ZOU Cong-ming, HU Xiao-dong, ZHANG Yun-lan, et al. Soil Moisture Dynamics and Crop Yield with Conservation Tillage in Tri-crop Intercropping System of Southwest China[J]. Bulletin of Soiland Water Conservation, 2010, 29(6): 69-74. DOI：

摘要

以西南地区麦/玉/薯三熟制种植模式为研究对象

研究了不同保护性耕作模式下旱地土壤水分动态变化、水分利用效率、作物产量和经济效应。结果表明

不同保护性耕作对整个农田生态系统产量和水分利用效率具有显著影响。秸秆覆盖(TS)、地膜覆盖(TM)、秸秆覆盖+地膜覆盖(TSM)和垄作+秸秆覆盖+地膜覆盖(RSM)能改善7

10月份0—60cm土层土壤含水量及贮水量

而垄作(R)、垄作+秸秆覆盖(RS)和垄作+地膜覆盖(RM)的作用不明显。与平作(CK)相比

RSM

TSM

TS和R分别使系统增产10.52%

6.11%

6.77%

4.59%

5.12%

3.15%

1.24%。这些处理对水分利用效率和降水利用效率的增幅分别为1.26%～11.08%

1.27%～10.57%。研究结果说明

从WUE、降水利用效率、产量效应、经济效益这4个方面来看

垄作+秸秆覆盖+地膜覆盖耕作模式综合效益最佳。

Abstract

Dy namics of soil moisture in root layer

water use efficiency

crop yield

and economic benefit sunder different types of conservation tillage were studied with the triple crops of wheat-maize-sweet potato in the southwest China .Results indicated that different types of conservation tillage had significant effects on cropyield and water use efficiency .Straw mulching (TS)

film mulching (TM)

straw mulching plus film mulching (TSM)

and ridge plus straw mulching plus film mulching (RSM)increased soil water storage and soil moisture in 0—60 cm soillayer in July and October

while ridge (R)

ridge plus straw mulch (RS)

and ridge plus film mulching (RM)can not remarkably affect the indexes .RSM

TSM

and Rincreased average yield by 0 .52 %

6 .11 %

6 .77 %

4 .59 %

5 .12 %

3 .15 %

and 1 .24 %

respect ively

compared with CK .T he comprehensive effect of ridge plus straw mulching plus film mulching was the best in view of water use efficiency

rainfall use efficiency

cropyield

and economic benefits.

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