M. RAMANJINEYULU, M. SRINIVASA REDDY*, P.V. RAMESH BABU AND P. KAVITHA
Department Agronomy, Agricultural College, ANGRAU, Mahanandi, A.P., India
A field experiment was conducted at Agricultural College Farm, Mahanandi on sandy loam soils to know the response of maize to secondary and micronutrients with pioneer hybrid P3369. The experiment comprised of 9 treatments consisting of recommended dose of fertilizer of NPK through soil application and foliar application of secondary and micronutrients at 25 DAS. Results showed that Foliar application of micronutrient mixture along with RDF recorded significantly highest grain yield (4702 kg ha-1) and Stover yield (7318 kg ha-1) as compared to RDF (3773 and 6430 kg ha-1 of grain and Stover yield, respectively). Yield attributes viz., number of rows cob-1(16.97), number of grains row-1(36.99), cob length (19.86 cm) were highest with the application of RDF + foliar application of ZnSO4 @ 0.2 per cent (T7) and highest hundred grain weight (31.26
g) was recorded with RDF + foliar application of one per cent each of CaNO3, MgNO3 and sulphur + foliar application of ZnSO4 @ 0.2 per cent . However, number of cobs plant-1 and cob girth was not influenced by secondary and micronutrients. The treatment with RDF + foliar application of micronutrient mixture @ 0.2 per cent (T9) recorded the highest gross returns, net returns and B: C ratio.
Maize, Secondary nutrients, Micronutrients, Yield attributes and Yield.