EFFECT OF PLOUGHING AND DIRECT DRILLING ON SOIL NITRATE CONTENT
作者:
R. J. DOWDELL,
R. Q. CANNELL,
期刊:
Journal of Soil Science
(WILEY Available online 1975)
卷期:
Volume 26,
issue 1
页码: 53-61
ISSN:0022-4588
年代: 1975
DOI:10.1111/j.1365-2389.1975.tb01929.x
出版商: Blackwell Publishing Ltd
数据来源: WILEY
摘要:
SummaryThe concentration of nitrate‐N at 30 cm depth in a clay soil was 2–5 times greater (p<.05) after ploughing than after direct drilling during the winter and spring of 1972–3. However, by early May no significant differences could be detected between cultivation treatments. It is concluded that decreased mineralization of soil nitrogen in the direct‐drilled soil is the main factor responsible for the differences o
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