Optimisation Of Nutrient Management Strategy For Enhancing The Growth And Yield Of Hybrid Maize (zea Mays L.)

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R. RAKESH NAIK, Y. REDDI RAMU*, N. SUNITHA, V. UMAMAHESH AND A.P.K. REDDY

Department of Agronomy, S.V Agricultural College, ANGRAU, Tirupati, Andhra Pradesh, India

ABSTRACT

A field experiment was conducted durring rabi, 2015 to optimize the nutrient management strategy for enhancing the growth and yield of hybrid maize. The experiment was laid out in a randomized block design with nine treatments and replicated thrice. The treatments consisted of nine nutrient management practices viz., control; 100 per cent RDF (180-60-50 kg N, P2O5 and K2O ha-1); 125 per cent RDF; 150 per cent RDF; 100 per cent RDF + FYM @ 5 t ha-1; 100 per cent RDF + 25 kg ZnSO4 ha-1; 100 per cent RDF
+ ZnSO4 + FeSO4 each @ 25 kg ha-1 ; 100 per cent RDF + sulphur @ 30 kg ha-1 + ZnSO4 + FeSO4 each @ 25 kg ha-1; 100 per cent RDF
+ sulphur @ 30 kg ha-1 + foliar application of ZnSO4 and FeSO4 @ 0.5 per cent each at booting and silking. Application of recommended dose of fertilizers (180-60-50 kg N, P 2O5 and K2O ha-1) supplemented with 30 kg S ha-1 along with foliar application of ZnSO4 + FeSO4 @ 0.5 per cent each at booting and silking recorded the highest stature of growth attributes of maize viz., plant height, leaf area index, dry matter production and yield in maize, which was significantly superior over the rest of the treatments tried. The lowest values of the above said growth parameters and yield were recorded with control.

KEYWORDS:

High Maize, nutrient management, growth attributes, yield.