Preliminary Results of a Two-Year Sorghum Trial on a Grumsol, Waigani, Papua New Guinea.

Abstract

Grain sorghum was grown on a grumusol at Waigani. One pot trial and a two year field trial were carried out to test the response of the crop to nitrogen fertilizer. The yield was more than doubled with use of fertilizer. The plot trial showed that phosphorus and potassium were prerequisites for response to nitrogen.