indian agriculture & animal husbandry section 4 MCQ Questions & Answers Detailed Explanation

Answer: (d)

The Central Rice Research Institute is situated near Vidyadharpur village on the Cuttack-Paradeep Road, Orissa, India. It is one of the premier national research institutes under the Indian Council of Agricultural Research.

Answer: (a)

Alkali, or alkaline, soils are clay soils with high pH (> 8.5), a poor soil structure and a low infiltration capacity. Often they have a hard calcareous layer at 0.5 to 1-metre depth.

Alkali soils owe their unfavourable physicochemical properties mainly to the dominating presence of sodium carbonate which causes the soil to swell and difficult to clarify/settle.

Answer: (c)

India has been divided into fifteen different agroclimatic zones by the Planning Commission of India, which are further divided into more homogeneous 72 sub-zones.

However, under the National Agricultural Research Project (NARP), implemented with World Bank funding, the entire country was divided into 126 agro-climatic zones, each consisting of several districts. In each of the zones, a research station was established under a specific SAU to carry out applied and adaptive research relevant to the zone.

Answer: (c)

Answer: (b)

India is the largest producer and exporter of tea in the world. The ideal climatic conditions for the production and growing of tea are as follows:

• Temperature: 21°C to 29°C is ideal for the production of tea. High temperature is required in summer. The lowest temperature for the growth of tea is 16°C.
• Rainfall: 150-250 cm of rainfall is required for tea cultivation.
• Soil: Tea shrubs require fertile mountain soil mixed with lime and iron. The soil should be rich in humus.
• Land: Tea cultivation needs well-drained land. Stagnation of water is not good for tea plants. Heavy rainfall but no stagnancy of water, such mountain slopes are good for tea cultivation.

Answer: (c)