Residual phosphorus availability after soil application of different organic waste in varying soil P status soils

Palvi Kataria; Jagdeep Singh; Gobinder Singh; M S Mavi; Mika Sillanpää; Saleh Al-Farraj

doi:10.1016/j.heliyon.2024.e25732

Residual phosphorus availability after soil application of different organic waste in varying soil P status soils

Heliyon. 2024 Feb 2;10(7):e25732. doi: 10.1016/j.heliyon.2024.e25732. eCollection 2024 Apr 15.

Authors

Palvi Kataria¹, Jagdeep Singh¹, Gobinder Singh¹, M S Mavi¹, Mika Sillanpää^{2

3

4

5

6

7}, Saleh Al-Farraj⁸

Affiliations

¹ Department of Soil Science, Punjab Agricultural University, Ludhiana, Punjab, 141 004, India.
² Functional Materials Group, Gulf University for Science and Technology, Mubarak Al-Abdullah, 32093 Kuwait, Kuwait.
³ School of Technology, Woxsen University, Hyderabad, Telangana, India.
⁴ Centre of Research Impact and Outcome, Chitkara University Institute of Engineering and Technology, Chitkara University, Rajpura, 140401, Punjab, India.
⁵ Division of Research & Development, Lovely Professional University, Phagwara, 144411, Punjab, India.
⁶ Adnan Kassar School of Business, Lebanese American University, Beirut, Lebanon.
⁷ Department of Chemical Engineering, School of Mining, Metallurgy and Chemical Engineering, University of Johannesburg, P. O. Box 17011, Doornfontein 2028, South Africa.
⁸ Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia.

Abstract

Transformations of applied phosphorus (P) fertilizer to inaccessible residual soil P is the main cause of inadequate P availability to plants in the majority of the cultivated soils. This study investigated the effect of organic wastes (rice-residue biochar, farmyard manure (FYM), poultry manure (PM), green manure (GM), and wheat straw (WS) on residual-P mobilization and its bioavailability in maize crops under different P status soils. Surface soil samples of 'medium-P' (12.5-22.5 kg P ha^-1) and 'high-P' (22.5-50.0 kg P ha^-1) status soils were collected from a long-term differential P fertilization experiment on maize-wheat rotation and were subjected to examine P adsorption/desorption, phosphatase activity and microbial biomass P (MBP) after incubation with organic amendments of varying elemental composition. The incorporation of organic manures decreases P sorption with maximum decrease in FYM-treated soils, indicating increased P concentration in soil solution. In contrast, WS due to its wider C/P ratio increased P sorption and did not produce any significant impact on the bioavailability of P. High-P status soils witnessed lower P sorption than medium-P soils. The MBP increased in the order of PM > FYM > GM > WS > biochar irrespective of soil P status. The availability and mobility of residual-P with FYM and PM was significantly higher than that of residual-P from biochar, GM and WS. Organics with wider C/P ratio immobilize bioavailable P in the short term regardless of soil P status.

Keywords: Adsorption; Bioavailability; Desorption; Organic manures; Phosphorus; Wheat residue.