OBJECTIVE FORESTRY

Detailed explanation-1: -The typical soil consists of approximately 45% mineral, 5% organic matter, 20-30% water, and 20-30% air.

Detailed explanation-2: -The chemical composition of the soil, the topography, and the presence of living organisms determines the quality of soil. In general, soil contains 40-45% inorganic matter, 5% organic matter, 25% water, and 25% air.

Detailed explanation-3: -the volume of water that should be. Water content and total porosity of a soil are given as 10% and 25%, respectively Specific gravity of soil particles is 2.5. The volume of water that should be added to 100 m3 of this soil for full saturation is m3.

Detailed explanation-4: -6 A loam soil has a field capacity of 25% and wilting coefficient of 10%. The dry unit weight of soil is 1.5 gm/cc. If the root zone depth is 60 cm, determine the storage capacity of the soil. Irrigation water is applied when moisture content falls to 15%.

Detailed explanation-5: -Soil is a source of mineral nutrients for many forms of life. Soil is made of mineral matter, organic matter, water, and air. The solid mineral matter and organic matter make up about 50 percent of the soil. The average soil contains about 45 per-cent mineral matter and about 5 percent organic matter.