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20201
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Subject: Soil Sciences × Author: Awasthi, Shalini Dwivedi × Thesis Type: Ph.D ×
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    ThesisItemOpen Access
    Impact of long term integrated nutrient management in soybean-wheat cropping system on mollisol of Uttarakhand
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2020-05) Awasthi, Shalini Dwivedi; Srivastava, Ajaya
    A study on the impact of Long Term integrated nutrient management in soybean- wheat cropping system on Mollisol of Uttarakhand was done. For that a field experiment was conducted at Norman E Borlauge Crop Research Centre of Govind Ballabh Pant University of Agriculture and Technology, Pantnagar during 2014-17.Combined application of chemical fertilizers along with farm yard manure NPK 100% RDF + 5 ton FYM increased soil pH, EC in soil of soybean and wheat crop during three years while significant increased was observed for organic carbon content, available nitrogen, phosphorus, and potassium in soil of soybean and wheat crop during all three years. Among STCR Targeted yield inorganic and organic mode, STCR Targeted yield 2 organic mode + 5 ton FYM ha-1 significantly increased organic carbon content, available nitrogen, phosphorus, potassium in soil of soybean and wheat crop during three years. Combined application of chemical fertilizers along with organic manure farm yard manure NPK 100% RDF + 5 ton FYM ha-1 significantly increased plant height, number of nodules, number of pods, number of effective tillers, number of ears per plant , grain weight in soybean and wheat crop during all three years. Among STCR Targeted yield inorganic and organic mode, STCR Targeted yield 2 organic mode + 5 ton FYM ha-1 also significantly increased plant height, number of nodules, number of pods, number of effective tillers, number of ears per plant , grain weight in soybean and wheat crop during three years. The highest grain yield, straw yield and biological yield in soybean and wheat crop was obtained by the combined application of chemical fertilizers along with organic manure farm yard manure during three years. The maximum grain yield varied from 29, 30.40, 32.53 q ha-1 in soybean crop and 53.33, 54.53 56.57 q ha-1 in wheat crop was obtained by NPK 100% RDF + 5 ton FYM ha-1 during three years 2014- 17.The highest straw yield varied from 36.54, 38.30, 40.99 q ha-1 in soybean crop and 74.67, 76.35, 79.19 q ha-1 in wheat crop was obtained by NPK 100% RDF + 5 ton FYM ha-1 during three years 2014-17. Among STCR Targeted yield inorganic and organic mode, STCR Targeted yield 2 organic mode + 5 ton FYM ha-1 significantly increased grain and straw yield in soybean and wheat crop during three years 2014-17. Combined application of chemical fertilizers and organic manure NPK 100% RDF + 5 ton FYM ha-1 significantly increased NPK content and uptake by soybean and wheat crop during three years. Among STCR Targeted yield inorganic and organic mode, STCR Targeted yield 2 organic mode + 5 ton FYM ha-1 significantly increased NPK content and uptake by soybean and wheat crop during three years. As a result of improved physical, chemical properties of soil and also improved growth parameters, productivity of soybean and wheat crops in soybean- wheat cropping system due to combined application of chemical fertilizers along with organic manure FYM during three years. From the present investigation it can be elucidated that the combined use of chemical fertilizer along with FYM for three years of soybean -wheat cropping system is a sustainable nutrient management practices because of improved physico- chemical properties of soil and productivity of both crops and also helps to obtained the targeted yield in soybean and wheat crops in soybean – wheat cropping system during three years.