Influence of organic manures on nutrients status of groundnut growing soils

Abstract

Organic manures helps to improve soil physical, chemical and biological properties thus improve nutrient availability to crops. The present study was carried out to evaluate the beneficial effects of different sources of organic manures on nutrient status of groundnut growing soils during Kharif, 2016 in an ongoing long-term experiment at RARS, Tirupati since 2007. The results revealed that continuous application of various organic manures favourably improved the soil major nutrients (N, P, K), secondary nutrients (Ca, Mg and S) and micronutrients (Zn, Mn, Fe and Cu) compared to control plots. Among the various organic manures, pressmud cake @ 10 t ha-1and farm yard manure @ 10 t ha-1had greater influence on increased soil nutrient status followed by poultry manure @ 4 t ha-1.