Influence of sulphur, phosphorus and farmyard manure on yield attributes and yield of maize (Zea mays) in southern Rajasthan conditions

Abstract

A field experiment was conducted at Instructional Farm, Rajasthan College of Agricultrue, Udaipur, during the rainy (kharif) seasons of 1999 and 2000 on clay-loam soil, to study the effect of sulphur, phosphorus and farm- yard manure on yield attributes and yield of maize (Zea mays L.). Cobslplant, rowslcob, cob weight, grain weight1 cob, seed index, seed and stover yields, N, P, S and Fe uptake by seed stover and total uptake by maize in- creased significantly as a result of sulphur application. Application of 60 kg Slha significantly recorded higher seed and stover yields over 0 and 30 kg Slha by 29.1 and 11.0 and 25.1 and 9.5% respectively. Application of 40 kg phosphorus increased significantly the yield attributes and seed and stover yields over 20 kg P,O,/ha, repre- senting a mean increases of 13.6 and 12.5% respectively. Application of 10 tonnes FYMIha enhanced signifi- cantly the yield attributes and yield over no farmyard manure to the magnitude of 13.9 in seed and 11.2% in sto- ver yield, respectively.