Agronomy MCQ Question and Answer | Agriculture MCQ Question

Delinting is the process of removing fuzz from the seed coat of cotton. It is a crop-specific seed management technique.
Delinting of cotton is done for quicker seed germination, and this is done by the application of hydrochloric acid gas or sulphuric acid, which completely removes all linters.

Crop rotation is the process of growing different crops one by one in one agricultural year. This technique helps in the maintenance of soil fertility as it aids in adding nutrients to the soil.
Pulses are leguminous crops that add nitrogen to the soil, which can then be used by the next crop grown on that field.

Berseem is an important winter crop in Egypt. It was introduced into India from Egypt in the 19^th century and into Pakistan, South Africa, the USA and Australia in the 20^th century. It is an annual clover cultivated mostly in irrigated sub-tropical regions.
Berseem is used as forage and green manure, as it is capable of providing 280 lbs/acre of nitrogen to the crops.

The field water use efficiency (WUE) is the ratio between the dry matter production of a plant (the output) divided by evapotranspiration. Thus the equation for WUE is:
$${\text{WUE}} = \frac{{\text{Y}}}{{{\text{ET}}}}$$
Y = Dry matter production (kg/ha)
ET = Evapotranspiration (in mm)

2, 4-Dichlorophenoxyacetic acid has been one of the oldest and most widely available herbicides and defoliants in the world since 1945.
It is an organic compound with the chemical formula C₈H₆Cl₂O₃, which is commonly known as 2, 4-D. It is a systemic herbicide that kills most broadleaf weeds by causing uncontrolled growth in crop plantations.

A seed rate is the quantity of seed of a crop that is required to sow a unit area of land for optimum crop production. It is important to determine the seed rate to determine the yield of hybrid seeds and to compare the best quality seeds.
Here, of the given options, the mustard is wrongly matched. The seed rate of mustard is about 4 to 6 lb/acre.

The inflorescence is the arrangement of flowers in a plant. The inflorescence of sugarcane is known as the Arrow. The inflorescence, or tassel, of sugarcane, is an open-branched panicle. Each tassel consists of several thousand tiny flowers, each capable of producing one seed.

The agricultural land of India is divided into 15 major agro-climatic zones, which on dividing it into sub-divisions, there are 64 zones in India. These are divided based on different agricultural parameters like climate, type of soil, optimum rainfall and temperature, etc.
The main objectives of the division of these zones are to optimize agricultural production and to increase agriculture based income.

Soil fertility is the inherent capacity of the soil to supply nutrients in a balanced amount to the crops. As per the agronomist, there are 17 essential nutrients required by the plants for optimum growth and development. And if any nutrient is missing or lacking, it can be provided by the application of fertilizers to the soil to achieve optimum productivity.