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Short-term rotations using the forage legume Lablab have a place in Central Queensland farming systems

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McCosker, K., Buck, S. R., Schwarz, A., Durkin, P. and Kelly, R. (2001) Short-term rotations using the forage legume Lablab have a place in Central Queensland farming systems. Science and Technology: Delivering Results for Agriculture? Proceedings of the 10th Agronomy Conference Hobart, Tasmania .

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Abstract

Soil nitrogen fertility decline is a problem for the farmers of Central Queensland (CQ). Nitrogen fertilisers are now widely used, but an erratic climate means that economic returns are not always achieved. Two farmer groups in CQ have ongoing experiments to make economic comparisons between a lablab/cereal rotation and conventional grain cropping regimes. At Fernlees, a sequence of lablab/sorghum/wheat is being compared with wheat/sorghum/chickpea on a low fertility open downs soil. At Theodore, an unfertilised lablab/sorghum rotation is being compared with continuous fertilised sorghum. Results after three seasons indicate that the nitrogen benefit to subsequent crops plus returns from a ley legume phase can offset the opportunity cost of not growing a grain crop on a low fertility soil.

Item Type:Article
Business groups:Animal Science
Subjects:Plant culture > Field crops > Forage crops. Feed crops
Live Archive:11 Jan 2024 04:44
Last Modified:02 Oct 2024 06:51

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