Effect of grinding on the decomposition of soil organic matter-II. Oxygen uptake and nitrogen mineralization in virgin and cultivated cracking clay soils

Craswell E.T. and Waring S.A. (1972) Effect of grinding on the decomposition of soil organic matter-II. Oxygen uptake and nitrogen mineralization in virgin and cultivated cracking clay soils. Soil Biology and Biochemistry, 4 4: 435-442. doi:10.1016/0038-0717(72)90058-2


Author Craswell E.T.
Waring S.A.
Title Effect of grinding on the decomposition of soil organic matter-II. Oxygen uptake and nitrogen mineralization in virgin and cultivated cracking clay soils
Journal name Soil Biology and Biochemistry   Check publisher's open access policy
ISSN 0038-0717
Publication date 1972-01-01
Sub-type Article (original research)
DOI 10.1016/0038-0717(72)90058-2
Volume 4
Issue 4
Start page 435
End page 442
Total pages 8
Subject 1111 Nutrition and Dietetics
1303 Specialist Studies in Education
2303 Ecology
Abstract Grinding caused large increases in both aerobic nitrogen mineralization and oxygen uptake in virgin and cultivated cracking clay soils. The large increases in organic matter decomposition in the cultivated soils, which had been depleted by 50 per cent in total organic matter, is discussed in relation to the rate of exposure of organic matter by field tillage. Grinding caused a large increase in the rate of decomposition of organic matter soon after incubation started. With time, however, the rates of decomposition in the ground and control samples were approximately equal. The similarity between this pattern and that obtained when artificial substrate is added to soil suggests that grinding increased the quantity of organic substrate available to the soil microflora.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import - Archived
 
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Created: Tue, 28 Jun 2016, 17:50:28 EST by System User