Integrated nutrient management for groundnut (Arachis hypogaea) horsegram (Macrotyloma uniflorum) cropping sequence under rainfed Entisol

Abstract

A field experiment was conducted during 1999 and 2000 to evaluate the effect of integrated nutrient manage ment with 4 levels of N and 3 integrating factors (bio fertilizer, enriched farmyard manure and composted coirpith) for groundnut (Arachis hypogaea L.) horsegram [Macrotyloma uniflorum (Lam) Verdc.] cropping sequence under rainfed condition in a red loamy sand soil. The use of composted coirpith provided better nutritional environment in the soil for groundnut and also the residual horsegram crop. The 75 and 100% soil test based levels of N along with composted coirpith rated better, accounting for higher yields in both the crops. The uptake also was more with IV level of 75% and beyond, irrespective of the integrating factors. . .. Key words : Integrated nutrient management, Soil test based N, Composted Groundnut horsegram, coirpith, Biofertilizer, Enriched FYM