Impact of sulfur and boron fertilization on yield, quality of crop and nutrient use efficiencies in rapeseed in subtropical acidic soil of Assam, India

Basumatary, Anjali; Chauhan, Shweta; Bhupenchandra, Ingudam; Das, K.N.; Ozah, D.

doi:10.1080/01904167.2021.1884708

Cited by 6 publications

(1 citation statement)

References 10 publications

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“…Similar low per cent utilisation of applied S was also reported by many researchers across the globe (Aula et al, 2019) even when calculated using 35 S (Hu et al, 2005); although a higher amount was also reported by others. For example, Basumatary et al (2018) reported S utilisation to the extent of 9.6%-24.8% of the applied amounts by black gram with variable doses of S. In a recent review on S utilisation by cereals, it was reported that ~18% of applied S could be utilised by the crops (Aula et al, 2019). Our crop, sorghum had a lower grain yield (1.07 Mg ha À1 ) compared with the average of the world (Global-1.45 and Asia-1.13 Mg ha À1 , FAOSTAT, 2019).…”

Section: S Retention ¼mentioning

confidence: 99%

Sulphur flow in soil–plant system with long‐term agricultural practices on a Vertisol

Ghosh

Murmu

Adhikary

et al. 2022

European J Soil Science

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Sulphur (S) deficiency is widespread in agricultural fields across the globe. Its flow in the soil–plant system under different management practices is too poorly understood to strategize S fertilisation with increased efficiency. Accordingly, an attempt was made to elucidate the pathways of S flow in soils and to plants under organic, inorganic, and integrated nitrogen (N) management practices using a 30‐year‐old long‐term field experiment planted with sorghum in the semi‐arid tropics. Partitioning soil S into pools, we observed that exchangeable (4.2%) and adsorbed (4.6%) pools constituted a small part of total soil S but contributed mainly to S nutrition (46% and 33%) of sorghum; it also contributed to the variability of S extractable by six commonly used extractants. Using multiple criteria, the superiority of monocalcium phosphate as an extractant for assessment of S in Vertisols was established. Among the N management practices, integrated N management performed better in supplying S in soils and to sorghum, and excelled, both in retention (35.9% of applied) and utilisation (13%) of S, curbing its losses (51.1%) from the system, over the organics (26%, 8.4%, and 65.6%, respectively) and inorganic (11.6%, 7.1%, and 81.3%, respectively) management practices. The integrated management practices with farmyard manure (FYM) excelled in improving S in soils, including economics. Out of the organics, FYM was more effective in improving S availability in soils and its nutrition of the crop over the crop residue, and green manure. Changes in organic C, and oxides and hydroxides of Fe and Al in soils are the keys governing the flows of S in the soil–plant system. A detailed pathway of the increased efficacy of S fertilisation upon conjoint application of N sources over the others was highlighted for adoption in Vertisols of semi‐arid tropics. Highlights Inter‐relationship between pools and extractants of S were elucidated. Organic C and sesquioxides played a key role in S transformation in soils. Monocalcium phosphate was the most sensitive extractant for S in soils. Sixty two percent of the applied S was lost, 28% retained and 10% utilised.

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