Soil Test Crop Response correlation studies were carried out in maize under Integrated Plant Nutrition System (STCR-IPNS) on Typic Rhodustalf of Tamil Nadu, adopting “Inductive cum Targeted yield modelâ€. The basic parameters for the “Targeted yield model†viz. nutrient requirement (NR), contribution of nutrients from soil (Cs), fertilizer (Cf) and farmyard manure (Cfym) were computed from field experimental data. Using these parameters, the fertiliser prescription equations were developed under IPNS and ready reckoner of fertiliser doses were formulated for desired yield target of maize for a range of soil test values. The quantity of fertilizer nutrients that could be saved due to the application of FYM @ 12.5 t ha-1 was assessed to the tune of 40, 20 and 26 kg fertilizer N, P2O5 and K2 O respectively, when applied along with the NPK fertilizers. The per cent reduction in fertilizer N, P2O5 and K2 O under IPNS increased with increasing soil available NPK.
For MASU related issues :
PUBLISHER
SECRETARY
Madras
Agricultural Students Union
Tamil Nadu Agricultural University
Coimbatore - 641 003
Tamil Nadu, India.
For MAJ related issues :
EDITOR-IN-CHIEF
Madras
Agricultural Students Union
Tamil Nadu Agricultural University
Coimbatore - 641 003
Tamil Nadu, India.
Copyright © Madras Agricultural Journal | Masu Journal All rights reserved.
Please provide the registered email ID
Please enter the new password
