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Research Paper | Agriculture | India | Volume 12 Issue 7, July 2023 | Rating: 4.8 / 10
Formulation of Targeted Yield Equations for Okra [Abelmoschus Esculentus (L.) Monech)] in Inceptisols of Odisha
Monali Raut | Subhashis Saren
Abstract: A field investigation was carried out to formulate nutrient optimization equations for Okra [Abelmoschus esculentus (L.) Monech] under rice-vegetable cropping system in Inceptisols of Odisha. The investigation was conducted at E-block of the Central Research Farm of Odisha University of Agriculture and Technology located in Bhubaneswar during rabi, 2020-21. It was started with creation of three soil fertility gradient stripes by applying no fertilizer, recommended dose and double of the recommended dose of fertilizer in rice (cv. Lalat) during kharif, 2020. Each fertility gradient strip was sub-divided into 24 sub-plots and super imposed with 21 different combinations of nutrients containing N, P, and K; FYM in two plots at 5t and 10t ha-1and one plot was kept as absolute control and Okra (cv.Kajari) was grown in rabi, 2020-21. The highest yield (223.3 q ha-1) of Okra was achieved in S-III with the application of 130, 70, and 100 kg N, P2O5, and K2O per hectare, respectively. Nutrient requirement (NR) for producing of one quintal of Okra yield was 0.30, 0.12, and 0.20 kg N, P2O5 and K2O. The effect of graded doses of fertilizers on nutrient requirement, yield and nutrient uptake of Okra were studied and subsequently fertilizer prescription equations were derived for targeted yield of Okra. A ready reckoner chart has also been prepared for facilitating farmers to achieve desired yield target of Okra by applying the required quantity of plant nutrients in the existing soil fertility level. The equations provide a basis for site specific nutrient management based on desired yield target under varying soil fertility conditions.
Keywords: Okra, targeted yield, fertilizer prescription equations, Inceptisols, STCR-IPNS
Edition: Volume 12 Issue 7, July 2023,
Pages: 1286 - 1289