International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2017, Volume : 5, Issue : 4
First page : (1337) Last page : (1344)
Article doi: http://dx.doi.org/10.18782/2320-7051.5657
Influence of Long-Term Application of Different Organics on Soil Physico-Chemical Properties
A. Krishna Chaitanya1*, Biswapati Mandal1, Gora Chand Hazra1, Prasanta Kumar Bandyopadhyay1 and Mahadev Pramanik2
1Department of Agricultural Chemistry and Soil Science
2Department of Agronomy, Bidhan Chandra Krishi Viswavidyalaya, Kalyani-741235, West Bengal
*Corresponding Author E-mail: krch3737@outlook.com
Received: 2.07.2017 | Revised: 11.07.2017 | Accepted: 12.07.2017
ABSTRACT
Studying the dynamics of soil organic carbon (SOC) is important for understanding the C stabilization into different pools. Carbon sequestration in soils has the potential to curb global warming besides maintaining sustainability of agricultural system under tropical and subtropical climate. Thus, a 28-year old experiment was used to assess the impact of rice-wheat cropping system with manuring and grades of fertilization on some soil properties and crop yield sustainability in an Inceptisol in India. There was significant decrease (p<0.05) in bulk density with increasing using organics over control. The oxidizable organic C content varied from 2.7 to 9.9 g kg-1 among the treatments with a decreasing trend with 50% RDF+FYM (9.9 g kg-1) > 75% RDF+FYM (8.8 g kg-1) > 50% RDF+GM (8.6 g kg-1) > 50%RDF+PS (8.3 g kg-1) > 75%RDF+FYM (8.1 g kg-1) > 75% RDF+PS (7.9 g kg-1) > RDF (7.5 g kg-1) > Control (6.8 g kg-1) treatments at 0-15 cm soil depth. Organic carbon was significantly correlated with yields of rice (r=0.74*) and wheat (r=0.71*). On the other hand organic carbon showed significant correlation with SYI of rice (r=0.77*) and wheat (=0.71*). Hence we can conclude that soil organic carbon can maintain sustainable yields by maintaining good soil structure and health.
Key words: Organic carbon, pH, Critical carbon Input, Yield
Full Text : PDF; Journal doi : http://dx.doi.org/10.18782
Cite this article: Chaitanya, A.K., Mandal, B., Hazra, G.C., Bandyopadhyay, P.K. and Pramanik, M., Influence of Long-Term Application of Different Organics on Soil Physico-Chemical Properties, Int. J. Pure App. Biosci.5(4): 1337-1344 (2017). doi: http://dx.doi.org/10.18782/2320-7051.5657
