soil science (calcium and magnesium silicate reactions in the soil in neutralizing the soil acidity)

The pH of the soil is very important for a proper crop yield. Salts such as carbonates, bicarbonates, phosphates, and organic acids render the soils acidic or basic. Farmers and gardeners need to know how acidic or basic the soil is so t..

Nutrients - Just as the human body needs nutrients for its healthy growth, plants also need certain nutrients for their growth. The nutrients required by plants for their healthy growth are 16 in number. They are carbon, hydrogen, oxygen, nitrogen, phosphorus, potassium, calcium, mag..

Potassium, sodium, lithium and calcium react violently with dilute H 2 SO 4 and dilute HCl, forming the metal salt (either sulphate or chloride) and hydrogen gas. The reaction is similar to the reaction with water. Magnesium, aluminium, zi..

Acidic water is dangerous for plants. Sulphuric and nitric acid rain damages the bark and leaves of trees and harms the fine root hairs of many plants which are needed to absorb water. It washes nutrients out of the soil. Leaf pigments are decolourised because a..

Not very reactive with dilute sulphuric acid because the colourless calcium sulphate formed is not very soluble and coats the metal inhibiting the reaction. Ca (s) + H 2 SO 4(aq) CaSO 4(s) + H 2(g) Magnesium Mg Slow reaction with water forming the sl..

. Non-metal exhibit both electrovalency or covalency. Deposition during electrolysis They are always deposited at the cathode. They are always deposited at the anode. Redox reaction These lose electrons and hence get oxidized. These gain electrons and hence get reduced. Redox agents They ..

Two types of xylem cells are involved in transport of water - tracheids and vessels. They are dead cells with lignified walls. They are joined end to end forming a capillary system to draw water up the plant. Phloem is a living tissue. Sieve tubes and companion cells are the phloem cells inv..

Pollution of Soil Surface - Large quantity of solid wastes like unused and rejected chemicals (like calcium carbonate, magnesium sulphate, ferrous chloride, ferrous oxide, radioactive wastes, fly ashes, sludge, press mud, saw dust, bottles, plastic materials) unwanted ..

Large quantity of solid wastes like unused and rejected chemicals (like calcium carbonate, magnesium sulphate, ferrous chloride, ferrous oxide, radioactive wastes, fly ashes, sludge, press mud, saw dust, bottles, plastic materials) unwanted industrial wastes generated duri..

Soil nutrients are important for plant growth and development. Plants obtain carbon, hydrogen and oxygen from air and water. But other necessary nutrients like nitrogen, phosphorus, potassium, calcium, magnesium, sulfur and more must be obtained from the soil..