indian agriculture & animal husbandry section 4 Practice Questions Answers Test with Solutions & More Shortcuts

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)

The Indira Gandhi Canal is one of the largest canal projects in India. It starts from the Harike Barrage at Firojpur, a few kilometers below the confluence of the Satluj and Bears in Punjab and terminates in the Thar Desert in the North-West of Rajasthan.

Answer: (a)

Both the statements are individually true and statement II is the correct explanation of statement I. Plantation agriculture is confined within tropical areas,

i.e. both sides of the equator. Plantations exist on every continent possessing a tropical climate.

Highly productive soil is found in the tropics which help plantation to grow.

Answer: (a)

Blue Revolution is the water equivalent of the green revolution and primarily refers to the management of water resources, especially fish production. The Blue Revolution envisages transformation of the fisheries sector with increased investment, better training and development of infrastructure.