Coal Clinker Ash Transforming Influence on Carbon Content of Sandy Soil.pdf

Agnes Dube, Tottori University
Mutsa Muhambi, Tottori University
Mitsuru Tsubo, Tottori University
Tsugiyuki Masunaga, Shimane University

Description

Coal Clinker Ash Transforming Influence on Carbon Content of Sandy Soil Authors Ms. Agnes Dube - Japan - The United Graduate School of Agricultural Sciences Mr. Mutsa Muhambi - Japan - The United Graduate School of Agricultural Sciences Dr. Mitsuru Tsubo - Japan - Tottori University Dr. Tsugiyuki Masunaga - Japan - Shimane University Dr. Eiji Nishihara - Japan - Tottori University Abstract Soil carbon (C) is increasingly becoming an important factor in assessing soil quality and improving soil CO2sink capabilities. The application of carbonaceous coal clinker ash (CA) was postulated to improve the C content of sandy soils. A three-year experiment was conducted in an improvised PVC pipe sandy field at Tottori University in Japan, to assess C content changes due to CA application. Four treatments randomly assigned to the pipes, replicated six times, were used in this experiment, these included Control (sandy only), CA1 (3 mm at 25 t ha-1), CA2 (5 mm at 25 t ha-1), and Biochar (rice husk) as a positive control (14 t ha-1). Sesame (Sesamum indicum L.) was the testing crop, and Vicia villosa R. (hairy vetch) as a green manure crop was the source of plant nutrients. The main results show that the C content, C/N ratio, and total inorganic carbon (TIC) fraction of sandy soil were significantly changed by CA1 whose characterization showed that it had a high amount of C content when compared to CA2. On the other hand, CA2 increased the EC, CEC, and exchangeable cations, of the sandy soil. PCA analysis indicated that TIC and total carbon (TC) carbon fractions were variables that influenced the yield of sesame. Therefore, the 3 mm size (CA1) improved the carbon pool of sandy soil, and the 5 mm size (CA2), improved some chemical properties of the soil.

 
May 16th, 9:30 AM May 16th, 10:00 AM

Coal Clinker Ash Transforming Influence on Carbon Content of Sandy Soil.pdf

Grand Rapids, Michigan

Coal Clinker Ash Transforming Influence on Carbon Content of Sandy Soil Authors Ms. Agnes Dube - Japan - The United Graduate School of Agricultural Sciences Mr. Mutsa Muhambi - Japan - The United Graduate School of Agricultural Sciences Dr. Mitsuru Tsubo - Japan - Tottori University Dr. Tsugiyuki Masunaga - Japan - Shimane University Dr. Eiji Nishihara - Japan - Tottori University Abstract Soil carbon (C) is increasingly becoming an important factor in assessing soil quality and improving soil CO2sink capabilities. The application of carbonaceous coal clinker ash (CA) was postulated to improve the C content of sandy soils. A three-year experiment was conducted in an improvised PVC pipe sandy field at Tottori University in Japan, to assess C content changes due to CA application. Four treatments randomly assigned to the pipes, replicated six times, were used in this experiment, these included Control (sandy only), CA1 (3 mm at 25 t ha-1), CA2 (5 mm at 25 t ha-1), and Biochar (rice husk) as a positive control (14 t ha-1). Sesame (Sesamum indicum L.) was the testing crop, and Vicia villosa R. (hairy vetch) as a green manure crop was the source of plant nutrients. The main results show that the C content, C/N ratio, and total inorganic carbon (TIC) fraction of sandy soil were significantly changed by CA1 whose characterization showed that it had a high amount of C content when compared to CA2. On the other hand, CA2 increased the EC, CEC, and exchangeable cations, of the sandy soil. PCA analysis indicated that TIC and total carbon (TC) carbon fractions were variables that influenced the yield of sesame. Therefore, the 3 mm size (CA1) improved the carbon pool of sandy soil, and the 5 mm size (CA2), improved some chemical properties of the soil.