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Subject: Soil Science × Author: Dwivedi, Rama × End date: 2009 × Start date: 2004 × Type: Thesis × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    Effect of INM on production potential of wheat and residual soil properties under maize-wheat cropping sequence in a mollisol
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2004-06) Dwivedi, Rama; Shri Ram
    A field experiment was conducted during the year 2002-2003 at the Crop Research Centre of G.B. Pant University of Agriculture and Technology, Pantnagar to study the effect of INM on production potential of wheat and residual soil properties under maize-wheat cropping sequences in a Mollisol. The experiment consisted of twelve treatments (T1 to T12) with three replications. Maximum values of growth parameters and yield attributing characters and yield were found with 100% of recommended dose of NPK fertilizers. Remarkably higher values of grain and straw yields and nitrogen, phosphorus and potassium uptake by succeeding wheat crop were observed under those treatments in which FYM @ 10 tonnes/ha was incorporated in combinations with biofertilizers and chemical fertilizers in comparison to treatments receiving chemical as well as biofertilizers alone in various combinations. Maximum grain (41.30 q/ha) and straw (68.67 q/ha) yield as well as nutrients uptake of wheat were found with the application of 100% NPK of recommended dose of fertilizers to both maize and wheat crops. Physical and chemical properties viz., soil organic carbon contents, bulk density, root density, water holding capacity etc. were improved with the treatments in which FYM @ 10 t/ha was incorporated alongwith chemical and biofertilizers as compared to application of chemical fertilizers alone in various combinations. Thus sustainable and economical productivity can be obtained by substituting a part of inorganic fertilizer and combined application of FYM, green manure, inoculation by Azotobacter and PSB which improve soil fertility and organic carbon status and simultaneously physico-chemical properties of soil.