Instrumental Characterization of Crop Residues and Coal Derived Humic Substances and their Impact on Soil Organic Matter
Instrumental Characterization of Crop Residues and Coal Derived Humic Substances and their Impact on Soil Organic Matter
Raza Ullah Khan1*, Ahmad Khan1, Mohammad Zameer Khan1, Fayyaz Hussain1, Zafar Islam2 and Muhammad Asad Hameed2
Figure 1:
The map of Chakwal district.
Figure 2:
Relative proportion of HSs in different crop residues.
Figure 3:
HPLC separations HA commercial and HAs derived from different plant materials; (A) Sunflower (B) Soybean (C) Rubber plant (D) Mulberry (E) Mung (F) Falsa (G) Rubber plant and (H) Papaya with corresponding HA standard material shown as a, b, c, d, e, f, g and h.
Figure 4:
Comparison of CDHA extracted with NaOH (A) and KOH (B).
Figure 5:
Response of SOM to HSs extracted from different sources.
June 2021
Vol. 34, Iss. 2, Pages 254-493
