Jacobs Journal of Plant Biology

Predicting Soil Organic Carbon Turnover in Soils at the Middle Region of Iraqi Using Infrared Spectra

Published on: 2019-03-18

Abstract

Organic carbon plays a significant role in soil fertility and consequently for cost effective farming. In the current survey, two cases of nutrient richness were examined; the organic carbon (C), nitrogen (N), organic matter (OM), C/N ratio, Potassium (K) and phosphorus (P) to predict the residual fulfill of the one-time utilization compost applied under weather conditions at the middle of Iraq after soil management for 14 years also the role of effective microorganisms and bio-fertilizers at 3 years (2015-2018). A functional model associated with flora, soil with different textures and high level of salinity was obtained with the aid of Fourier Transform-Infrared (FT-IR) spectroscopy. Mid-FTIR spectroscopy was employed for detecting the typical chemical groups after addition of OM to the soils. Soil samples were collected from 73 sites at 0–30 cm depth, from fields allocated at the Middle region of Iraq. Results were based on the variability in the OM absorbed bands after prediction of standard deviation (RPD) in flora soil of agricultural system and in the hydrophilic components (3500- 1600 cm-1), which correlated significantly with the RPD in the agricultural system. The soil selection sampling with a high distribution of hydrophobic proportions was those most related to salinity and soil texture. Data concerning Iraqi soil support the assessment of the organic carbon soil attribution framework as well as the soil productivity under different agricultural systems.

Keywords

Organic carbon; Bio-fertilizers; Effective microorganisms; FTIR spectroscopy