Sulfur and phosphorus fertilisers increase the yield of barrel medic (Medicago truncatula) five-fold in native pasture on a traprock soil [southern Queensland]
1989
Clarkson, N.M. | Chaplain, N.P. (Queensland Dept. of Primary Industries, Toowoomba (Australia)) | Swann, I.F. (Queensland Dept. of Primary Industries, Caboolture (Australia))
In field trials, a single appliction of S and P in the first year produced a 5-fold yield increase in barrel medic (Medicago truncatula cv. Jemalong), every year for 3 years, on traprock country in southern inland Queensland. Elemental S was inferior to gypsum and superphosphate fortified with elemental S in the first year, but equally effective thereafter. There was no response to lime. It was concluded that adequately fertilising medic with S and P can greatly improve pasture yield and quality, and allow higher stocking rates on traprock country.
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