P-fertilizer and manure requirements of groundnut in the semi-arid north-western Nigeria

Abstract

Experiment was conducted in Sokoto during the 1998 and 1999 rainy seasons to determine the effect of Phosphorus and Manure on the growth and yield of groundnut (Arachis hypogaea L.) using RCBD. Growth as well as yield of groundnut (Arachis hypogea L.) was significantly (P<0.05) and positively affected by fertilizer–P and manure alone or in combination. An application of 40 kg P₂0₅/ha was found adequate for optimum production of groundnut. The manure was found to increase groundnut production at all rate of its application. Based on the results of this investigation, a combination of 9 t/ha manure and 40 kg P₂0₅/ha may be safely recommended for the groundnut production under the upland conditions in the semi-arid northwest Nigeria.