lnflence of different N,P,K doses on yield and yield components of tv,.o standard rice varieties of PNG , under lowand field conditions.

Abstract

Influence of 6 doses of N,P,K on yield and yield components of two PNG standard varieties Wantok & Tambu was studied under lowland field conditions, separately. Under no fertilizer treatment, the yield was the least, for both the varieties, while highest yield for Wantok and Tambu was recorded under N, P, K (kg./ha.) doses of 100: 50: 50, 120:60:60 and 140: 70: 70; and 120:60:60 and 140: 70: 70 respectively. Doses of 100:50:50 and 120:60:60 seem to be optimum for Wantok and Tambu respectively. The influence of all the doses on yield and yield component of both the varieties has also been presented.