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Brajendra ¹, L. M. Shukla ¹, B. S. Kherawat ², Munna Lal ³

Affiliations
1 Division of Soil Science and Agricultural Chemistry, Indian Agricultural Research Institute (New Delhi), IN
2 Division of Crop Improvement, Central Soil Salinity Research Institute, Karnal (Haryana), IN
3 Division of Resource Management, Central Research Institute for Dryland Agriculture, Hyderabad (A.P.), IN

Abstract

A green house experiment was carried out with surface soil samples (0-15 cm) collected in bulk from twenty different sites from plateau region of Jharkhand comprising the districts of Dhanbad, Giridih, Hazaribagh and Ranchi. Mustard was taken as a test crop. The dry matter yield and per cent relative yield were taken. To determine the critical limit of available S in soil for mustard using different extractants. The critical limit of available S for different extractants for mustard were 6.6 mg kg^-1(0.001 M HCl), 17.2 mg kg^-1(0.25 M HCl), 9.8 mg kg^-1(NaOAc+CH₃COOH), 10.2 mg kg^-1(Water soluble), 15.6 mg kg^-1(NH₄OAc+CH₃COOH), 15.6 mg kg^-1(0.15% CaCl₂), 13.2 mg kg^-1(1% NaCl ), 18.2 mg kg^-1(Heat soluble), 38.6 mg kg^-1(CaH₂PO₄), 48.8 mg kg^-1(KH₂PO₄).

Keywords

Sulphur, Critical Limit, Alfisols, Ultisols, Extractants, Mustard.

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Brajendra ¹, L. M. Shukla ¹, B. S. Kherawat ², Munna Lal ³

Affiliations
1 Division of Soil Science and Agricultural Chemistry, Indian Agricultural Research Institute (New Delhi), IN
2 Division of Crop Improvement, Central Soil Salinity Research Institute, Karnal (Haryana), IN
3 Division of Resource Management, Central Research Institute for Dryland Agriculture, Hyderabad (A.P.), IN

Abstract

In a green house experiment carried out with surface soil samples (0-15 cm) collected in bulk from twenty different sites from plateau region of Jharkhand comprising the districts of Dhanbad, Giridih, Hazaribagh and Ranchi, safflower was taken as a test crop. The dry matter yield and per cent relative yield were taken. To determine the critical limit of available S in soil for safflower using different extractants standerd statistical method was followed. The critical limit of available S for different extractants for safflower were 5.2 mg kg^-1(0.001 M HCl), 6.2 mg kg^-1(0.25 M HCl), 8.6 mg kg^-1(NaOAc+CH₃COOH), 10.4 mg kg^-1(Water soluble), 13.6 mg kg^-1(NH₄OAc+CH₃COOH), 16.2 mg kg^-1(0.15% CaCl₂), 16.8 mg kg^-1(1% NaCl), 19.6 mg kg^-1(Heat soluble), 38.2 mg kg^-1(CaH₂PO₄), 47.8 mg kg^-1(KH₂PO₄), respectively.

Keywords

Sulphur, Critical Limit, Alfisols, Ultisols, Extractants, Sanfflower.

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