Question

1. A silt loam in a Peshawar valley can hold 35% moisture on volume basis at field capacity in rootzone, at permanent wilting point it can hold 6.67% moisture on weight basis, actual moisture content in soil on volume basis is 22%. The bulk density of the soil is 1.5 g/cm3. The crop cultivated on the soil with these characteristics has a rootzone of 1.5 meters and an evapotranspiration of 5 mm per day. a. What is the actual available water in the rootzone of this crop (in mm)? b. How much water (in mm) should be applied to get the soil in the rootzone at field capacity? c. Find the maximum available water when moisture content in rootzone is at field capacity (in mm)? d. After the field is brought at field capacity by applying required depth of water calculated in (b) , how many days does it take before the soil reaches back to 22% moisture by volume? Please solve this i really need correct answer

Answer 1

Answer:

When dry soil is crushed in the hand, it can be seen that it is composed of all kinds of particles of different sizes.

Most of these particles originate from the degradation of rocks; they are called mineral particles. Some originate from residues of plants or animals (rotting leaves, pieces of bone, etc.), these are called organic particles (or organic matter). The soil particles seem to touch each other, but in reality have spaces in between. These spaces are called pores. When the soil is "dry", the pores are mainly filled with air. After irrigation or rainfall, the pores are mainly filled with water. Living material is found in the soil. It can be live roots as well as beetles, worms, larvae etc. They help to aerate the soil and thus create favourable growing conditions for the plant roots

Explanation: