Long-term effect of fym and nitrogen fertilizer on the distribution of k fraction in soil under pearl millet wheat cropping system

Kumar, R. and Narwal, R.P. (2016) Long-term effect of fym and nitrogen fertilizer on the distribution of k fraction in soil under pearl millet wheat cropping system. Forage Research, 42 (2). pp. 131-134.

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Abstract

The present study evaluated the effect of farmyard manure and fertilizer-N doses on distribution of different K fractions in a long-term field experiment. The long-term field experiment was conducted since 1967 in Department of Soil Science on a coarse loamy, Typic Ustochrept soil using a pearl millet-wheat cropping sequence. Total-K content of soil increased with the application of FYM. Water soluble-K, exchangeable-K, non exchangeable-K and lattice-K were ranged from 35-77 mg/kg, 155-1117 mg/kg, 2215- 4346 mg/kg and 11076-15407 mg/kg, respectively in surface soil. The water soluble-K, exchangeable-K, non exchangeable-K and lattice-K were higher in surface soil. Farmyard manure applied in rabi season had more effects as compared to kharif season. Application of fertilizer-N had deleterious effect on all K fractions. The percent contribution of different K fractions towards total K in surface and sub-surface soil followed the order: water soluble-K < exchangeable-K < non exchangeable-K < Lattice-K.

Item Type: Article
Uncontrolled Keywords: Fertilizer-N, FYM, Long-term, Pearl millet, Potassium fractions and wheat
Author Affiliation: Department of Soil Science, CCS Haryana Agricultural University, Hisar-125004 (Haryana), India
Subjects: Plant Protection
Divisions: Millet
Depositing User: Mr B Krishnamurthy
Date Deposited: 21 Jul 2017 04:25
Last Modified: 21 Jul 2017 04:25
URI: http://eprints.icrisat.ac.in/id/eprint/14856

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