Beef production from the grazing ley as influenced by the application of nitrogen fertiliser
Nitrogen is essential to crop production and, moreover, crop yields all over the world are probably limited more often by shortage of nitrogen than any other nutrient. The nitrogen made available to crops and grass by the soil comes from the continual breakdown of organic matter, and this may mainta...
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University of Edinburgh
1961
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| Online Access: | https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.652521 |