EFFECTS OF NITROGEN FERTlLlSER ON PRODUCTION OF MILK SOLIDS FROM GRAZED PASTURE

A.M. Bryant; K.A. Macdonald; D.G. Clayton

doi:10.33584/jnzg.1982.43.1602

EFFECTS OF NITROGEN FERTlLlSER ON PRODUCTION OF MILK SOLIDS FROM GRAZED PASTURE

Authors

A.M. Bryant
K.A. Macdonald
D.G. Clayton

DOI:

https://doi.org/10.33584/jnzg.1982.43.1602

Abstract

In each of two years, eight 6.48 ha farmlets were used to assess effects of urea applications on dairy production. In the first year, 86 kg N/ha were applied in 2-3 dressings during May-August. Effects on annual milkfat and pasture production were not significant. In the second year 3-4 applications totalling 137 kg N/ha in April to September significantly increased annual milkfat and pasture production. Response in milkfat production per hectare to urea application averaged 0.22 (range - 0.16 to 0.45) and 0.25 (range - 0.1 I to 0.39) kgfat/ kgN in the first and second years respectively. These responses were not economic at present-day prices.

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Published

1982-01-01

Issue

Volume 43, 1982, New Plymouth

Section

Articles

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