The physical environment of two semi-arid tropical soils with partial surface mulch cover [seedbed conditions]
1989
Bristow, K.L. (Commonwealth Scientific and Industrial Research Organization, Townsville (Australia). Div. of Soils) | Abrecht, D.G. (Commonwealth Scientific and Industrial Research Organization, Darwin (Australia). Div. of Tropical Crops and Pastures)
Seedbed conditions are compared on 2 soils with varying widths of bare zone created by seeding equipment, from nil (mulch-covered) to completely bare. Rates of drying of soils were directly related to bare-zone width; maximum temperature at 5 cm depth was greater in a loamy sand than in a clay loam, and also increased with bare-zone width. The benfits of maximising surface cover under these conditions are clearly demonstrated.
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