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Effect of Conservation Tillage on Soil Temperature, Water Content and Yield in Arable Black Soil(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2011年01期
Page:
56-61
Research Field:
Publishing date:

Info

Title:
Effect of Conservation Tillage on Soil Temperature, Water Content and Yield in Arable Black Soil
Author(s):
LIU Shuang1 2 ZHANG Xing-yi1
1.Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin 150081, Heilongjiang;
2.Graduate College, Chinese Academy of Sciences, Beijing 100049, China
Keywords:
Conservational tillage Soil water content Soil temperature Yield
PACS:
S565.1
DOI:
10.11861/j.issn.1000-9841.2011.01.0056
Abstract:
Conservation tillage is an effective technique for increasing crop yield in arid areas. The objective of this field experiment was to compare the effects of three different tillage systems (no tillage, reduced tillage and conventional tillage) on soil temperature, soil water content and crop yield in arable black soil region of Hailun County, Heilongjiang province from 2004 to 2009. The result showed that no-tillage with mulch (NT) and reduced tillage (RT) under soybean and corn rotation system, the soybean yield in NT and RT averagely increased by 10% and 3.7% in 2004 and 2008, respeltively;decreased by 4.6% in 2006, and increased by 3.7% during three years. The yields were significantly different between NT, RT and CT (P<0.05) in 2004 and 2008. Moreover, the corn grain yields reduced under NT and RT, separately. The yield under NT was significantly different (P<0.05) compared with other tillage systems. Furthermore, NT could increase soil water content in the topsoil of 0~15 cm and the soil water content in the furrow were higher than ridge. During the sowing period the soil surface temperature was increased in the order of NT

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Last Update: 2014-09-11