PRAYASI NAYAK, A. PRATAP KUMAR REDDY, N. SUNITHA, K. V. NAGA MADHURI
Department of Agronomy Department of Soil Science and Agricultural Chemistry
A field experiment was conducted during kharif season of 2017-18 on sandy loam soils of S.V. Agricultural College Wetland Fam, Tirupati to optimise the organic, inorganic and biofertilizer needs for sustained productivity of maize (Zea mays L.). Seven treatments comprising all possible combinations of chemical fertilizer, organic manure (vermicompost, FYM) with and without biofertilizer (Azospirillum and PSB) were laid out in randomized block design with three replications. Application of 100 per cent RDF (T ) (180-60-50 kg N, P O and K O ha-1) produced significantly higher yield attributes and kernel (5207 kg ha-1) and stover yield (6751 kg ha-1). The next best treatment was 50 per cent RDF + Vermicompost @ 1t ha-1 + Azospirillum @ 5 kg ha-1+ PSB @ 5 kg ha-1 (T ) with kernel (4683 kg ha-1) and stover yield (6394 kg ha-1) which was in turn comparable with 50 per cent RDF + FYM@ 5 t ha-1 + Azospirillum @ 5 kg ha-1+ PSB @ 5 kg ha-1 (T ).
KEY WORDS: Biofertilizers, yield attributes, yield, maize