A soil fertility status inventory work was carried out in some villages of Khordha and Bhubaneswar blocks belonging to Khordha district located in the North-Eastern Ghats Agro Climatic Zone of Odisha, India. Results show that soil texture of the villages under investigation varied from loamy sand to clay loam. Clay content varied from 2.4 to 34.0 percent. Soil pH ranged between 4.24 and 6.93 and electrical conductivity of the entire study area remained below 1 dSm -1 . Soil Organic Carbon (SOC) content ranged between 1.1 to 11.6 g kg -1 . Available nitrogen content in these soils was found to be varying between 50.0 to 225.0 kg ha -1 . Available Bray"s phosphorus content varied from 11.3 to 2326.5 kg ha -1 . Available soil potassium content varied widely from 37.6 to 458.3 kg ha -1 . CaCl 2 extractable soil sulphur varied from 2.17 to 11.02 mg kg -1 . Hot water soluble boron content ranged from 0.91 to 2.68 mg kg -1 . All the figures in lower range were found in upland soils while the higher values for all the parameters were found in low land soils.

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A field experiment was conducted to formulate the fertilizer prescription equations for achieving desired yield target of green gram (Vigna radiata L. Wilczek) during 2013-14. Three fertility gradient stripes were created by applying no fertilizer, recommended dose of fertilizer (RDF) and double of the RDF in rice in order to develop three fertility gradient stripes during kharif. Each strip was again sub-divided into 24 sub plots and green gram was cultivated with different treatment combinations. One plot was kept as absolute control while FYM was applied in two sub-plots and rest 21 plots were applied with different graded doses of fertilizers. Initial and post harvest soil nutrient status, nutrient uptake, nutrient requirement, soil efficiency, fertilizer efficiency and yield data were recorded. The highest yield (12.15 q ha -1 ) was achieved with application of 30:50:50 (N: P 2 O 5 : K 2 O). Fertilizer prescription equations were formulated by multiple regression equation for site specific nutrient management on the basis of initial soil fertility status and targeted yield approach. The equations and ready reckoner were developed for higher production with optimum use of fertilizers according to desired yield target of green gram with sustainable manner.

A field experiment was conducted during 2014-2015 to study the response of French bean (Phaseolus vulgaris) to graded doses of fertilizer and to formulate soil test based fertilizer recommendation for targeted yield of french bean under ricefrench bean cropping system in a lateritic soils of Odisha. Detailed morphological and physico-chemical properties of a typifying pedon of the experimental site was conducted. In kharif season, three fertility gradient strips were created (B-I, B-II & B-III) by application of no fertilizer, recommended dose of fertilizer and twice of the recommended dose in rice. Each of these fertility gradient strips were divided into 24 sub-plots where 21 plots were treated with different treatment combinations of N, P and K, two plots received 2.5 and 5.0 t ha-1 and one plot was kept as absolute control. French bean (cv. Anupam) was grown in these sub-plotsfor investigation during rabi. Highest pod yield, uptake of N, P and K of french bean was achieved in B-III block. Mean pod yield varies from 57.6 to 75.0 q ha-1 whereas, uptake of N, P and K vary from 67.9 to 75.0, 49.0 to 56.6 and 69.9 to 84.9 kg ha-1 respectively. Targeted yield equations for french bean were developed using the Ramamoorthy's targeted yield approach for site specific integrated nutrient management.