Vol. 8 (2) : March-April 2017 issue
Green Farming Vol. 8 (2) : 477-479 ; March-April, 2017
Influence of long-term use of farmyard manure and inorganic fertilizers on carbon pools in a Vertisol
P. JOGA RAOa1*, A. LALITHA KUMARIb2, M.N. VENKATESHc3 and Y. SIVA DEVIKAc4
aDeptt. of Soil Science and Agricultural Chemistry, Student of Agricultural College (ANGRAU), Bapatla - 522 101
bRegional Research Unit (Chemistry), RARS, Lam, Guntur - 522 034 (Andhra Pradesh) cDepartment of Soil Science and Agricultural Chemistry, At ARS, Garikipadu and RARS, Chintapalli - 531 111
Designation : 1Student *(jogibam24@gmail.com), 2Principal Scientist, 3,4Res. Associate
Subject : Soil Science & Agric. Chemistry; Soil Health & Soil Conservation Engg.
Paper No. : P-5646
Total Pages : 3
Received : 05 August 2016
Revised accepted : 06 February 2017
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Citation :
P. JOGA RAO, A. LALITHA KUMARI, M.N. VENKATESH and Y. SIVA DEVIKA. 2017. Influence of long-term use of farmyard manure and inorganic fertilizers on carbon pools in a Vertisol. Green Farming Vol. 8 (2) : 477-479 ; March-April, 2017
ABSTRACT
An experiment was conducted during 2013-14, to study the effect of long-term use of organic manure and inorganic fertilizers on carbon pools of soils at RARS Lam, Guntur, Andhra Pradesh. Incorporation of organic and inorganic fertilizers gave significantly higher carbon pools (Active 426 µg g-1, Microbial 264 µg g-1 and Organic carbon 0.61%) than the control. The application of 150% RD of NPK increased the carbon contents over that of 100% RD of NPK treatment. Continuous addition of inorganic fertilizers to the crop results a decrease in soil pH.
Key words :
Carbon pools (Active carbon, Organic carbon) Microbial biomass carbon, FYM, Mineralizable carbon, Vertisol.
