National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
In order to refine the fertiliser prescription equation for hybrid maize on an Inceptisol (Periyenackampalayam soil series- Vertic Ustropept), a field experiment was conducted at farmer’s holding of Allapalayam village, Annur block, Coimbatore District of Tamil Nadu in Western Zone of Tamil Nadu during Rabi 2015-16. Basic parameters were calculated from the data generated from the field experiment. Using the basic parameters, crop nutrient requirement per quintal of grain production, contribution of soil available nutrients, contribution of fertilizer nutrients and contribution of farm yard manure were worked out. It was found that hybrid maize requires 1.76, 0.58 and 1.62 kg of N, P2O5 and K2O per quintal of grain produced. Using the basic parameters, fertiliser prescription equations were developed based on integrated plant nutrition system (IPNS). It was estimated that, application of FYM @ 12.5 t ha-1 with 28% moisture, 0.53%, 0.26% and 0.50% of N, P and K, respectively along with NPK fertilizers, the extent of saving inorganic fertiliser for hybrid maize was 40, 20 and 30 kg of fertiliser N, P2O5 and K2O, respectively. Thus to maintain consistent soil fertility with high rate of productivity soil test based fertiliser recommendation along with integrated nutrient management will benefit the farmer in saving of fertilizer and sustaining soil health.
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