Vol. 8 (5) : September-October 2017 issue
Green Farming Vol. 8 (5) : 1105-1110 ; September-October, 2017
Distribution of sulphur pools as influenced by long-term application of fertilizers and manure in a Vertisol
JARUPULA SUMAN1*, B.S. DWIVEDI2, A.K. DWIVEDI3 and S.K. PANDEY4
Department of Soil Science and Agricultural Chemistry, College of Agriculture, Jawaharlal Nehru Krishi Viswavidyalaya, Krishinagar, Adhartal - 482 004, Jabalpur (Madhya Pradesh)
Designation : 1P.G. Student *(jarupulajnkvv@gmail.com), 2Sr. Scientist, 3Principal Scientist, 4Scientist
Subject : Soil Science & Agric. Chemistry; Soil Health & Soil Conservation Engg.
Paper No. : P-6915
Total Pages : 6
Received : 14 July 2017
Revised accepted : 25 August 2017
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Citation :
JARUPULA SUMAN, B.S. DWIVEDI, A.K. DWIVEDI and S.K. PANDEY. 2017. Distribution of sulphur pools as influenced by long-term application of fertilizers and manure in a Vertisol. Green Farming Vol. 8 (5) : 1105-1110 ; September-October, 2017
ABSTRACT
A field experiment was conducted during 2014-15 under LTFE at JNKVV, under soybean-wheat crop sequence with 8 treatments viz., 50%, 100%, 150% NPK, 100% NP, 100% N, 100% NPK+FYM, 100% NPK-S and Control, replicated with four times in randomized block design. The successive addition of S fertilizers increased the available S and S pools from its initial status and highest deposition (42.66 kg ha-1) in the treatment receiving 100% NPK+FYM followed by 150% NPK (39.30 kg ha-1) addition, while the lowest S status was recorded in control (13.95 kg ha-1) followed by where continuous use of N alone fertilizers and S free fertilizers. The result on relationship between pools of S and availability of S showed that highly significant further, S pools were significantly correlated with yield of soybean. The highest crop yield was recorded with balanced NPK applied with FYM (1300 kg ha-1). The finding of the experiment revealed that the abundance of various forms of S was in the following decreasing order: total S>organic S>heat soluble S>available S> water soluble S.
Key words :
N alone fertilizers, Sulphur pools, Sulphur free fertilizers.