RESPONSE OF INTEGRATED PLANT NUTRIENT SUPPLY UNDER SOIL TEST CROP RESPONSE BASED FERTILIZER RECOMMENDATION ON TARGETED YIELD AND ECONOMICS OF WHEAT (TRITICUM AESTIVUM) IN INCEPTISOLS OF CHHATTISGARH PLAINS

S.P. SINGH¹*, C.R. PATEL², K.K. PAIKRA^3
1ICAR-Krishi Vigyan Kendra, Raigarh, 496001, Indira Gandhi Krishi Viswavidyalaya, Raipur, 492012, Chhattisgarh, India
²ICAR-Krishi Vigyan Kendra, Raigarh, 496001, Indira Gandhi Krishi Viswavidyalaya, Raipur, 492012, Chhattisgarh, India
³ICAR-Krishi Vigyan Kendra, Raigarh, 496001, Indira Gandhi Krishi Viswavidyalaya, Raipur, 492012, Chhattisgarh, India
* Corresponding Author : spsinghsahab@gmail.com

Received : 30-08-2019     Accepted : 13-09-2019     Published : 15-09-2019
Volume : 11     Issue : 17       Pages : 9007 - 9010
Int J Agr Sci 11.17 (2019):9007-9010

Keywords : Wheat, Target yield, STCR, FYM, Fertilizer recommendations, Ready reckoner
Conflict of Interest : None declared
Acknowledgements/Funding : Authors are thankful to ICAR-Agricultural Technology Application Research Institute, Zone-IX, Jabalpur, M.P. and Indira Gandhi Krishi Vishwavidyalaya, Raipur, 492012, Chhattisgarh for providing necessary financial support.
Author Contribution : All authors equally contributed

Field experiments were carried out on wheat (Triticum aestivum) during rabi 2017-18 to investigate the response of integrated plant nutrient supply undersoil test crop response-based fertilizer recommendation by following Ramamoorthy’s inductive approach of fertility gradients in Inceptisols of Raigarh district of Chhattisgarh plains. The fertilizer adjustment equations are derived by the All India Coordinated Research Project (AICRP), College of Agriculture, Indira Gandhi Krishi Vishwavidyalaya, Raipur, C.G. The results revealed that targeted yield of wheat (30and 45 q ha-1) have been achieved by using the plant nutrients on the basis of targeted yield concept (soil test crop response). The N, P and K fertilizers were contributed in increase yield 31.60 and 42.75 q ha-1 in first location, 33.10 and 44.50 q ha-1 in second location, 32.40 and 43.75 q ha-1 in third location and 34.25 and 46.25 q ha-1 in fourth location as compared to farmers practice which were 22.75, 24.66, 21.85 and 23.45 q ha-1, respectively. The maximum net returns of wheat first location (Rs.16009.30 and Rs.34669.75), second location (Rs.15102.50 and Rs.34341.50), third location (Rs.13938.50 and Rs.33807.45) and fourth location (Rs.16033.00 and Rs.36212.75) were obtained in treatment where plant nutrients applied as per soil test value (STCR treatment).Soil test based fertilizer adjustment equations for targeted yield of wheat crop 2.02, 0.56 and 2.12 kg N, P2O5 and K2O nutrients (NR) were required to produce one quintal of wheat grain yield. The percent contribution from soil (CS) was recorded as 10.00, 48.29 and 8.28 % N, P2O5 and K2O nutrients in case of wheat crop. The percent contribution of organic source (CFYM) for N, P2O5 and K2O nutrients were recorded 3.47, 5.45 and 2.13 for wheat. The results clearly indicate that soil test-based fertilizers adjustment equations were evolved for wheat crop to achieve a definite yield target.

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