International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2017, Volume : 5, Issue : 4
First page : (1051) Last page : (1057)
Article doi: http://dx.doi.org/10.18782/2320-7051.5650
Effect Long term fertilizer experiments on Bulk Density, Crack Volume, Soil Organic Carbon stock and Carbon sequestration rate Rice crop
Challa Venu Reddy*, Alok Tiwari, K. Tedia, Anil Verma and R. R. Saxena
Indira Gandi Krishi Vishwa Vidhyalaya, Raipur, Chattishgarh, India
*Corresponding Author E-mail: venureddychalla4u@gmail.com
Received: 15.07.2017 | Revised: 24.07.2017 | Accepted: 25.07.2017
ABSTRACT
The permanent plot after fourteen years of rice cropping on Vertisol resulted that the continuous use of farm yard manure, blue green algae and green manure in conjunction with fertilizers decreased soil bulk density and crack volume. 100% NPK+FYM treatment resulted in lowest bulk density (1.29 Mg/m3) and crack volume (625.73 cm3/m2) as compared to other treatments. Soil organic carbon (SOC) sequestration is important for improving soil fertility of cropland and for the mitigation of greenhouse gas emissions to the atmosphere. The efficiency of SOC sequestration depends on the quantity and quality of the organic matter, soil type, and climate. Little is known about the SOC sequestration efficiency of organic amendments in Vertisols. Thus, we conducted the research based on 14 years (1999–2013) of long-term fertilization experiment with a no fertilizer control, 50% NPK, 100% NPK, 150% NPK, 100% NPK+Zn, 100% NP, 100% N, 100% NPK+FYM, 50% NPK+BGA and 50% NPK+GM.. Mean SOC sequestration rate was 0.812 ton/ha/yr in 150% NPK treatment and 0.206, 0.13, -0.662, -0.821, -1.025, -1.082, -1.724, -2.817 and -3.302 t/ha/yr in 100% NPK, 100% NPK+FYM, 50% NPK+GM, 50% NPK, 100% NPK+Zn, 50% NPK+BGA, 100% NP, 100%N and Control respectively.
Key words: Bulk density, Crack Volume, Soil Organic Carbon, SOC sequestration, Vertisols.
Full Text : PDF; Journal doi : http://dx.doi.org/10.18782
Cite this article: Reddy, C.V., Tiwari, A., Tedia, K., Verma, A. and Saxena, R.R., Effect Long term fertilizer experiments on Bulk Density, Crack Volume, Soil Organic Carbon stock and Carbon sequestration rate Rice crop., Int. J. Pure App. Biosci.5(4): 1051-1057 (2017). doi: http://dx.doi.org/10.18782/2320-7051.5650
