Changes in organic and inorganic sulfur fractions and S mineralisation in a Typic Haplustert after long-term cropping with different fertiliser and organic manure inputs
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Title |
Changes in organic and inorganic sulfur fractions and S mineralisation in a Typic Haplustert after long-term cropping with different fertiliser and organic manure inputs
Changes in organic and inorganic sulfur fractions and S mineralisation in a Typic Haplustert after long-term cropping with different fertiliser and organic manure inputs |
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Creator |
ICAR_CRIDA
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Subject |
organic C, total N, extractable organic S, C :N : S ratio, soybean–wheat–fodder maize rotation.
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Description |
Not Available
Changes in the status of organic and inorganic pools of soil sulfur (S), total nitrogen (N), and organic carbon, and their interrelationships and S mineralisation were examined on a Typic Haplustert soil after a 27-year long-term cropping. The results indicated that NPK( + S) applied for 27 years at 50%, 100%, and 150% of optimum recommended rates and 100% NPK( + S) with farmyard manure (FYM) increased the organic C and total N status of soil compared with the control and the initial status of the soil. Intensive cropping with continuous use of 100% NPK without S resulted in depletion of total, organic, and inorganic S concentrations by 18.13%, 17.80%, and 21.72%, respectively, over the control, while the status of total, organic and inorganic S improved in plots that received graded rates of S with NPK and NPK plus FYM. Intensive cropping with continuous use of S-free NPK fertiliser (100% NPK-S) resulted in the widest C :N: S ratio in the soil. NaHCO3-extractable total, inorganic, and organic S fractions and NaOHextractable total and inorganic S fractions were found to be better indices of soil S mineralisation than CaCl2-extractable inorganic S. Cumulative amounts of S mineralised during a 14-week incubation period varied between 2.3 and 21.3 mg S/kg soil and increased with an increase in the rates of S applied, along with NPK fertilisers. Incorporation of FYM with 100% NPK( + S) resulted in greater cumulative mineralised S over 100% NPK( + S) alone. The cumulative mineralised S showed a quadratic relationship with the duration of incubation in all the treatments. Not Available |
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Date |
2021-07-31T09:16:36Z
2021-07-31T09:16:36Z 2001-01-01 |
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Type |
Technical Report
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Identifier |
Not Available
Not Available http://krishi.icar.gov.in/jspui/handle/123456789/51641 |
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Language |
English
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Relation |
Not Available;
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Publisher |
K. Sammi ReddyA, Muneshwar SinghA, A. K. TripathiA, A. SwarupA, and A. K. DwivediB
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