Soil organic matter changes and crops responses to fertiliser under conservation cropping systems in the semi-arid tropics of North Queensland, Australia
- 1 January 1995
- journal article
- research article
- Published by CSIRO Publishing in Australian Journal of Experimental Agriculture
- Vol. 35 (2) , 233-237
- https://doi.org/10.1071/ea9950233
Abstract
Soil organic matter changes due to cropping in the semi-arid tropics were studied in an area with cropping potential. Soil organic carbon and total nitrogen (N) decreased after clearing and tillage, but decline was less where pasture-crop rotations were used. Crop N removal was high and exceeded the recommended fertiliser N rate. These results suggest that if cropping expansion occurs, careful management the is necessary for long-term productivity and land resource protection.Keywords
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