Soil Science MCQ Question and Answer | Agriculture MCQ Question

In Acidic soils, zinc availability to crops is higher. The amount of zinc present in the soil depends on the parent materials of the soil. Highly leached soils have generally low plant available zinc. And it is mostly seen, that the soils originating from igneous rocks are also higher in zinc.

It is found that boron content in its natural deposit in the form of borax is about 11%.
Borax is a salt, a colourless crystalline solid that dissolves in water to make a basic solution. Borax is a combination of Boron, sodium and oxygen. It is commonly available in powder or granular form and has many industrial and household uses, also as pesticides.

Sulphur is an essential ingredient of the oil, and it increases the quality of the oil.

Potassium enhances drought and disease resistant power in plants.

Calcium is the essential constituent of the cell, and is crucial for plant growth and makes plants less susceptible to disease and pests.

Magnesium is an essential constituent of chlorophyll. It is important as it sustains metabolic roles within different plant cell compartments.

FYM stands for Farmyard Manure. It is an organic matter made up of compost and green manure. FYM mainly includes Dung, Urine and litter.
Farmyard manure improves the soil structure and is used as a natural fertilizer in farming. It provides essential nutrients to plants, including micronutrients that help improve the quality of gardens and crops.

Boron is the non-metallic nutrient. Boron plays a key role in a diverse range of plant functions including cell wall formation and stability, maintenance of structural and functional integrity of biological membranes, movement of sugar or energy into growing parts of plants and pollination and seed set.

Soil formation is defined as the transformation of rock material into the soil. Soil formation is the process of soil genesis as regulated by the effects of place, environment and history.
Soil formation is a slow and continuous process. It is influenced by five factors, that are parent material, climate, topography, organisms and time.

Phosphoric acid is an inorganic compound with the chemical formula H₃PO₄. It is a colourless, odourless and non-volatile syrupy liquid.
The specific gravity of any liquid is the "the ratio of the density of the liquid to the density of water at 4 degrees Celcius". the specific gravity of laboratory grade H₃PO₄ is 1.70 g/ml.

White alkali is the mixture of salts like, sodium sulphate, sodium chloride, etc. forming a white crust on some alkali soils.
White alkali is saline soil. these are the soil with high pH, a poor soil structure and a low infiltration capacity, because of which it forms a hard calcareous layer.

In the Mitscherlich technique oats plants are grown to maturity. It is performed for soil fertility investigations and is for the study of the trend of the yields from a series of plants grown to maturity.
In this technique, oats are grown to maturity in pots containing 6 lb of soil. A total of 10 pots are used. The yields of N-P and N-K treatments are expressed as a percentage of the yield from the complete N-P-K treatment.

The movement of micronutrients from one cell to another cell or within the cell mostly occurs through the process of Diffusion.
Diffusion is the process resulting from the random motion of molecules by which there is a net flow of matter from a region of high concentration to a region of low concentration.