Regression analysis of soil chemical composition for two shrimp farms in Texas

Several nutrients, pH, organic matter, and total soluble salts of surface s oil from 81 ponds on two Texas shrimp farms were measured. The relationship between shrimp yield and soil characteristics was analyzed statistically, Shrimp yield was negatively correlated with soil concentrations of S, P, NO 3-, B, Ca, Mg, K, Na, Cu, and total water-soluble salts. Shrimp yield was d irectly correlated with soil concentrations of Fe, Mn, and organic matter, Stepwise multiple regression analysis indicated that Ca and S concentration s explained 54% of the variation in shrimp yield.