Efficiency of Modified Phosphatic Fertilizer in Transplanted Rice ( Oryza sativa L.) Under Partially Reclaimed Salt Affected Soil of Uttar Pradesh

Abstract

The present investigations was conducted at the instructional farm of the Narendra Deva University of Agriculture and Technology, Kumarganj, Faizabad to evaluate the response of single super phosphate (SSP) modified with different organic and inorganic materials to rice. The application of modified and split doses of phosphatic fertilizer increased the yield, yield attributes, and nutrient uptake over the control. The maximum yield of rice was obtained in gypsum coated SSP (49.50 q ha⁻¹) than 50 % Basal + 50 % Top dressing in two split 25 % tillering stage + 25 % PI stage (44.70 q ha⁻¹) and Cow dung coated SSP (1:5) (38.80 q ha⁻¹) treatment. The SSP with gypsum coated recorded higher N, P, and K uptake response by 65.64, 168.23 and 89.06 % respectively as compared to other treatment. The maximum net income and cost benefit ratio was obtained with gypsum coated SSP followed by 50 % Basal + 50 % Top dressing in two split 25 % tillering stage + 25 % PI stage.

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