1College of Agriculture/Basrah University, Basra province, Iraq
2College of Education for Pure Science/Karbala University, Karbala province, Iraq
College of Agriculture/Misan University, Misan province, Iraq
*E-mail hashim.hanin@uomisan.edu.iq
Online Published on 31 March, 2022.
Two soil samples were selected based on the difference in particle size distribution, included fine texture (clay loam) and coarse texture (sandy). Laboratory experiment was conducted by treating both the two samples by four concentrations of Cladophora crispate extract (0,1,2,3 g/l) to evaluate the ability to release soluble and exchangeable potassium. The tested soil samples varied in soluble and exchangeable potassium content which ranged between (0.2–1.12) and (0.1–0.79) Meq/l for fine texture and coarse texture, respectively and greater amount for released potassium was in the concentration of 3g/l for fine which was higher in fine than coarse texture. The results showed linear increment in potassium phases (soluble, exchangeable and available) with the increase of algae extract concentration
Available potassium, Cladophora crispate, Algae extract, Soil texture
