STUDY ON EMISSIONS OF CARBON DIOXIDE FROM GRAZED PASTURE LAND USING CATTLE URINE

B. Thulasamma; Ch. Harikrishna; A. Saratchandra; P. Amareswari; D.B.V. Ramana

doi:10.56093/ijvasr.v51i2.126628

Authors

B. Thulasamma M.V.Sc. Research Scholar, Department of Livestock Production Management College of Veterinary Science P.V. Narsimha Rao Telangana Veterinary University Rajendranagar, Hyderabad, Telangana
Ch. Harikrishna Professor, Department of Livestock Farm Complex, College of Veterinary Science, P.V. Narsimha Rao Telangana Veterinary University Rajendranagar, Hyderabad, Telangana
A. Saratchandra Professor and Head, Department of Livestock Production Management, College of Veterinary Science P.V. Narsimha Rao Telangana Veterinary University Rajendranagar, Hyderabad, Telangana
P. Amareswari Principal Scientist and Head, Livestock Research Station, Mamnoor, Warangal, Telangana
D.B.V. Ramana Principal Scientist, ICAR- Central Research Institute for Dryland Agriculture, Santhoshnagar, Hyderabad, Telangana

https://doi.org/10.56093/ijvasr.v51i2.126628

Keywords:

Carbon dioxide emissions, Cattle urine, Emissions flux, Grazed pastures

Abstract

An experiment was conducted to assess the effect of application of cattle urine at a rate of 0.7 l/m² area on carbon dioxide (CO) emissions under low, medium and high pasture cover blocks of the grazing area during rainy season at Hyderabad. CO₂ emissions was significantly (P<0.05) higher in experimental plots which received cattle urine than without cattle urine. Mean CO₂ concentration increased linearly with the time i.e., from 0 to 60 minutes of sample collection under different pasture cover blocks and the differences were significantly (P<0.01) different. The CO₂ emissions flux (mg/m /h) ranged from 9.10 to 28.80, 12.30 to 27.80 and 10.40 to 32.50 with a mean of 16.50 ± 1.24, 17.50 ± 1.00 and 21.30 ± 1.58 mg/m²/h under low, medium and high vegetation covered chambers, respectively and no trend was observed in CO₂ flux among different vegetative cover blocks. The differences in mean CO₂ emissions flux among different vegetation cover plots were significantly (P<0.05) different with highest under high vegetation and lowest under low vegetation cover. It is concluded that, pasture growth would influence the CO₂ emissions from the grazing lands when applied urine of grazing animals hence, appropriate pasture management combined with rotational livestock grazing helps in containing global warming.

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