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Effect of age and cutting frequency on below-ground biomass in grass-clover

By F.P. Vinther

Abstract

Significant amounts of plant biomass and fixed N are incorporated into soil as roots, nodules and root exudates during the growth of grass-clover, which consequently is exposed to soil microbial degradation when the field is ploughed. This has major implications for our understanding of the potential contributions of legumes in the N economics and losses in grass-clover cropping systems. \ud \ud We have studied the effects of grass-clover pasture age and cutting frequency (simulated grazing) on the development of the above ground as well as the below ground plant biomass, with emphasis on below-harvest contribution to the total N2 fixation.\u

Topics: Nutrient turnover, Pasture and forage crops
Year: 2004
OAI identifier: oai:orgprints.org:3368
Provided by: Organic Eprints

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