Page 45 - Enzymes in Tropical Soils

Enzymes in Tropical Soils 33

Chapter IV:

IMPORTANT SOIL ENZYMES

4.1 Production of Soil Enzymes
a. Roles of Soil Microorganisms
b. Roles of Soil Macroorganisms
c. Roles of Plant Roots
4.2 Forms of Soil Enzymes
4.3 Enzymes in the Cycling of Carbon
4.4 Enzymes in the Cycling of Phosphorus
4.5 Enzymes in the Cycling of Sulfur
4.6 Enzymes in the Cycling of Nitrogen and Urea Hydrolysis
4.7 Analyses of Soil Enzymes
4.8 Factors Affecting the Rates of Soil Biochemical Reactions

T
he presence of enzymes in soils are of great importance. They catalyze
numerous biochemical reactions important in the cycling some nutrient
elements such as C, N, S, and P in the soil – plant system. As shown
previously in Fig. 1.1, the presence of soil enzymes may accelerate the
transformation of nutrient elements packed in the organic structures to inorganic

Abdul Kadir Salam - 2014