Register      Login
Animal Production Science Animal Production Science Society
Food, fibre and pharmaceuticals from animals
RESEARCH ARTICLE

Response of Inga rice to nitrogen fertilizer rate and timing in New South Wales

DP Heenan and LG Lewin

Australian Journal of Experimental Agriculture and Animal Husbandry 22(115) 62 - 66
Published: 1982

Abstract

Two experiments were done at the Yanco Agricultural Research Centre, New South Wales, in 1978-79 and 1979-80 to measure the response of long grain rice, cv. Inga, to rates of nitrogen applied at two different times. The highest yields were recorded when the nitrogen was applied at panicle initiation. Increasing the rate from 100 to 200 kg N/ha at panicle initiation had no effect on grain yield. When the nitrogen was applied earlier, just before permanent water, yields were highest at 50 kg N/ha and declined at the highest rates (150 and 200 kg N/ha). This negative yield response was mainly due to a drop in the percentage of filled florets, and occurred despite an increase in panicle number.

https://doi.org/10.1071/EA9820062

© CSIRO 1982

Committee on Publication Ethics


Export Citation Get Permission

View Dimensions