Y. GANESH*, A.R. NIRMAL KUMAR, S. TIRUMALA REDDY, P. SANDYARANI AND V. UMAMAHESH

Department of Crop Physiology, S.V. Agricultural College, ANGRAU, Tirupati-517 502.

ABSTRACT

The present experiment entitled “Influence of iron, zinc and supplemental NPK on yield and yield attributes of dry direct sown rice” was done at wetland farm of S.V. Agricultural College, ANGRAU, Tirupati during Summer, 2023. Three replications were used in the randomised block design of the experiment. The results revealed that the treatment involving RDF + 25 % additional NPK + 3% FeSO₄ at 15, 45, and grain filling + 1% ZnSO₄ at 15 DAS, 45 DAS and grain filling exhibited superior performance across all growth parameters such as plant height, leaf area index and dry matter production at 30 DAS and at harvest. Furthermore, compared to all other treatments, this one produced a significantly higher grain yield and straw yield.

KEYWORDS: Dry direct rice, Ferrous sulphate, Grain yield, Growth parameters and Zinc sulphate.