E. JEEVANA LAKSHMI*, P.V. RAMESH BABU, G. PRABHAKAR REDDY, P. UMAMAHESWARI AND A. PRATAP KUMAR REDDY

Department of Agronomy, S.V. Agricultural College, ANGRAU, Tirupati-517 502, Chittoor Dt., A.P.

ABSTRACT

A field experiment was conducted during rabi, 2016-17 on sandy loam soils of college farm, Agricultural College, Mahanandi to study the effect of foliar sprays of secondary nutrients and zinc nutrition on growth, yield attributes and yield of blackgram. The experiment comprised of eight treatments viz., control (T1), RDF (20-50-0 kg N-P2O5-K2O ha-1) (T2), RDF + foliar applica-tion of one per cent CaNO3 (T 3), RDF + foliar application of one per cent MgNO3 (T4), RDF + foliar application of one per cent Sulphur (T5), RDF + foliar application of one per cent each of CaNO3, MgNO3 and Sulphur (T6), RDF + foliar application of ZnSO4 @ 0.2 per cent (T7), T6 + foliar application of ZnSO4 @ 0.2 per cent (T8). The results revealed that all the growth parameters, yield attributes and yield were significantly higher with the foliar spray of secondary nutrients (Ca, Mg and Sulphur) and zinc at 25 and 45 DAS along with recommended dose of fertilizers (T8).

KEYWORDS:

Secondary nutrients, zinc, growth parameters, yield and blackgram.