Management of plant nutrient dynamics under alkaline soils through graded application of pressmud and gypsum.

Autor: Dotaniya ML; ICAR-Directorate of Rapeseed- Mustard Research, Bharatpur, India., Meena MD; ICAR-Directorate of Rapeseed- Mustard Research, Bharatpur, India., Choudhary RL; ICAR-Directorate of Rapeseed- Mustard Research, Bharatpur, India., Meena MK; ICAR-Directorate of Rapeseed- Mustard Research, Bharatpur, India., Singh H; ICAR-Directorate of Rapeseed- Mustard Research, Bharatpur, India., Dotaniya CK; Department of Soil Science & Agricultural Chemistry, SKRAU, Bikaner, India., Meena LK; ICAR-Directorate of Rapeseed- Mustard Research, Bharatpur, India., Doutaniya RK; Department of Agronomy, SKN College of Agriculture, Jobner, India., Meena KN; ICAR-Directorate of Rapeseed- Mustard Research, Bharatpur, India., Jat RS; ICAR-Directorate of Rapeseed- Mustard Research, Bharatpur, India., Rai PK; ICAR-Directorate of Rapeseed- Mustard Research, Bharatpur, India.
Jazyk: angličtina
Zdroj: PloS one [PLoS One] 2023 Aug 09; Vol. 18 (8), pp. e0288784. Date of Electronic Publication: 2023 Aug 09 (Print Publication: 2023).
DOI: 10.1371/journal.pone.0288784
Abstrakt: An incubation experiment was conducted to monitor the effect of different organic matter inputs with the graded application of gypsum at different time intervals on soil pH, sodium (Na) content and available plant nutrients like nitrogen (N) and sulphur (S) in alkaline soil. The experiment was formulated with nine treatments, i.e. control (T1), recommended dose of fertilizer (RDF) (T2), RDF+Gyp1 (T3), RDF+FYM5+Gyp2 (T4), RDF+FYM10+Gyp1 (T5), RDF+PM5+Gyp2 (T6), RDF+PM10+Gyp1 (T7), RDF+FYM2.5+PM2.5+Gyp2 (T8), RDF+FYM5+PM5+Gyp1 (T9) with three replications. Periodical soil samples were taken at six and twelve months intervals. Results showed that the addition of organic matter reduced the pH and Na content in the soil. More reduction was observed at one year period as compared to six months. The addition of farmyard manure (FYM) and pressmud (PM) at 10 t/ha with gypsum (1 t/ha) improved available N and available S content as compared to organic inputs (5 t/ha) with gypsum (2 t/ha) in soil. Pressmud application with FYM showed better availability of plant nutrients and a reduction of soil pH (8.39 to 7.79) and Na content from 626 to 391 mEq/L in the soil during the incubation period. During the study, the application of treatment T9 (FYM and PM in equal ratio with 1 t/ha gypsum) showed a better availability of available N (175 to 235 kg/ha) and S (15.44 to 23.24 kg/ha) and reduced the active ion concentration of Na. This study is very useful for the management of sodium toxicity, improving soil health and the mineralization rate of organic matter through the application of organic inputs for sustainable crop production.
Competing Interests: The authors have declared that no competing interests exist.
(Copyright: © 2023 Dotaniya et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.)
Databáze: MEDLINE
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