Improving top dressing recommendations for rice

  • The current nitrogen fertiliser topdressing rates for rice (PI topdressing) have been revised using historical trial data to provide better outcomes for growers
  • Farmers should aim for a plant nitrogen uptake of between 100 and 140 kg N/ha at panicle initiation (PI) to achieve top yields and the most ef cient use of nitrogen fertiliser
  • Inappropriate recommendations can occur due to inaccurate sampling area, by sampling in areas not representative of the eld or sampling at the wrong growth stage 

Brian Dunn Research Agronomist, NSW Department of Primary Industries, IREC Farmers’ Newsletter – Large Area No 179: Spring 2008

Cristy Houghton