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January 1, 2008Proceedings of the New Zealand Grassland AssociationOpen Access

New Zealand made controlled release coated urea increases winter growth rates of Italian ryegrass with lower N leaching than uncoated urea

Peter Bishop H.Y. Liu M. J. Hedley P. Loganathan

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Abstract

In a field trial the application of 5 and 7% polyurethane coated controlled release urea, 10% dicyanodiamide coated urea and three x 50 split urea (SU) applications at 150 kg N/ha (150 N) increased winter pasture dry matter (DM) production of Italian ryegrass over the June-September period by between 1666 to 2240 kg DM/ha. These treatments also reduced nitrate leaching losses from 6.8 to 1 kg N/ha compared to urea (U).

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Bishop et al. (2008) studied this question.

synapsesocial.com/papers/6a95be047974e8f0414f0b8f https://doi.org/10.33584/jnzg.2008.70.2729

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