Agronomy - Study Mode

[#191] Botanical name of India cotton
Correct Answer

(B) Gossypium arborium

Explanation

Solution: The botanical name of India cotton is Gossypium arboreum . India is the only country in the world where all four cultivated species are grown as it supports the livelihood of 95 million people in India.

[#192] For calculating value of P, P 2 O 5 is multiplied by
Correct Answer

(C) 0.437

[#193] Native place of arhar is
Correct Answer

(A) India

Explanation

Solution: The central origin is probably Peninsular India, where the closest wild relatives ( Cajanus cajanifolia ) occur in tropical deciduous woodlands. From India, it travelled to East Africa and West Africa. Now pigeon pea is grown in over 50 tropical countries of the world, especially in more arid regions of Africa, Asia and the Americas.

[#194] Which one is a selective herbicide?
Correct Answer

(A) Atrazine

Explanation

Solution: Selective herbicide means it can be applied to the field and it will control or suppresses the targeted weed species without affecting the growth of the main crop. Atrazine serves as a selective herbicide that inhibits the process of photosynthesis in susceptible plants.

[#195] Permanent soil property is
Correct Answer

(C) Texture

Explanation

Solution: The texture of any soil is the permanent soil property while others may vary. All soil contains mineral particles, organic matter, water, and air. Soil properties can be determined by texture, structure, porosity, chemistry and colour.