Soil-water conservation as affected by primary tillage practices
作者:
BerryW.A.J.,
MallettJ.B.,
JohnstonM.A.,
期刊:
South African Journal of Plant and Soil
(Taylor Available online 1985)
卷期:
Volume 2,
issue 1
页码: 19-20
ISSN:0257-1862
年代: 1985
DOI:10.1080/02571862.1985.10634132
出版商: Taylor&Francis Group
关键词: Soil-water conservation;stubble mulching;tillage
数据来源: Taylor
摘要:
An investigation of water conservation as affected by different primary tillage methods was conducted on a soil of the Doveton series (fine-loamy, mixed, thermic family of Rhodic Paleudults), where a direct sampling technique was used to monitor the soil-water profiles. Soil samples were taken for the period just prior to early winter tillage to two weeks before the maize cropflowered. The resultsshowedthat tillage practices which maintain higher levels of surface residues retained more water than practices which by their mode of soil disturbance leave soil surfaces relatively‘clean’. Measured differences in soil physical properties and possibly also surface residue distribution resulting from tillage were used to explain why reduced tillage systems provided better water conservation.S. Afr. J. Plant Soil1985, 2: 21–26
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