Conservation tillage induced changes in organic carbon, total nitrogen and available phosphorus in a semi-arid alkaline subtropical soil

A multi-year experiment was conducted to compare the effects of conservation tillage (no-till and ridge-till) with conventional plow tillage on organic C, N, and resin-extractable P in an alkaline semi-arid subtropical soil (Hidalgo sandy clay loam, a fine-loamy, mixed, hyperthermic Typic Calciustol...

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Bibliographic Details
Published in:Soil & tillage research 2002-07, Vol.66 (2), p.153-163
Main Authors: Zibilske, L.M, Bradford, J.M, Smart, J.R
Format: Article
Language:English
Subjects:
Agronomy. Soil science and plant productions
Biological and medical sciences
Chemical, physicochemical, biochemical and biological properties
Fundamental and applied biological sciences. Psychology
No-tillage
Organic carbon
Organic matter
Organic nitrogen
Phosphorus
Physics, chemistry, biochemistry and biology of agricultural and forest soils
Plow tillage
Ridge tillage
Soil science
Stratification
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Summary:A multi-year experiment was conducted to compare the effects of conservation tillage (no-till and ridge-till) with conventional plow tillage on organic C, N, and resin-extractable P in an alkaline semi-arid subtropical soil (Hidalgo sandy clay loam, a fine-loamy, mixed, hyperthermic Typic Calciustoll) at Weslaco, TX (26°9′N 97°57′W). Tillage comparisons were established on irrigated plots in 1992 as a randomized block design with four replications. Soil samples were collected for analyses 1 month before cotton planting of the eighth year of annual cotton (planted in March) followed by corn (planted in August). No-till resulted in significantly ( p
ISSN:0167-1987
1879-3444
DOI:10.1016/S0167-1987(02)00023-5