Establishing critical limits of sulphur for groundnut (Arachis hypogaea)

Autor: RAHUL KUMAR, G C HAZRA, RUMA DAS, S P MAJUMDER, DHANESHWAR PADHAN, A C DAS
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: The Indian Journal of Agricultural Sciences, Vol 89, Iss 11 (2019)
Druh dokumentu: article
ISSN: 0019-5022
2394-3319
DOI: 10.56093/ijas.v89i11.95345
Popis: Sulphur is essential for growth and development of groundnut (Arachis hypogaea L.). Deficiency of S is widespread in soils of India, and is becoming a major concern for the quality and yield of groundnut crop. Therefore, a study was conducted to investigate the response of groundnut to S application in alluvial Inceptisols of West Bengal with four levels of S, i.e. 0, 15, 30 and 45 kg/ha. The critical limits of Sulphur in soil and plant for deï¬ciency, adequacy and toxicity were determined from Bray percent yield (BPY). The amount of CaCl2 extractable S in soils varied from11.90–29.17 mg/kg while the critical level for deficiency of S in groundnut was graphically 18.6 mg/kg and statistically 19.58 mg/kg in soils. Application of S increased groundnut yield signiï¬cantly, concentration of S in plant and its uptake by groundnut parts. The critical limit was determined to be 3.0 g/kg for groundnut plants and 4.42 g/ kg for groundnut nuts at harvest.
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