Agronomy - Study Mode

[#591] Nursery area needed for conventional transplanting of paddy is
Correct Answer

(B) $${frac{1}{{10}}^{{ ext{th}}}}$$ of total area

Explanation

Solution: For transplanting a one-hectare area of rice approximately 1000 meter square of the area is sufficient for nursery raising. It is $${frac{1}{{10}}^{{ ext{th}}}}$$ of the total area needed for conventional transplantation of rice. There are different methods of raising rice seedlings, these are the Wet bed nursery, the Dry bed nursery, the Dapog nursery, etc.

[#592] Which is not a correct match in the following
Correct Answer

(D) Structure : Relative distribution of the soil particles

Explanation

Solution: Flocculation is a process where individual clay particles are pulled together. Dispersion is the act of repellence of the soil particles. Cohesion is the intermolecular attraction between the molecules of soil particles. Soil structure is defined by the way individual particles of sand, silt and clay are assembled. Thus this was not correctly matched.

[#593] Brix value of sugarcane at maturity is
Correct Answer

(C) 16 - 18

Explanation

Solution: Brix value is a measure of the soluble solids content of a solution. Brix value can be calculated by dividing the dissolved solids by the sum of the dissolved solid plus water, all multiplied by 100. $${ ext{Bx}} = frac{{left( {{ ext{Ds}} imes { ext{100}}}
ight)}}{{left( {{ ext{Ds}} + { ext{100}}}
ight)}}$$ And Brix value of sugar cane is in between 16 - 18.

[#594] The largest living animal on the earth is
Correct Answer

(C) Blue whale

Explanation

Solution: The Antarctic Blue whale is the largest living animal on the planet. It weighs up to 4,00,000 pounds and is about 98 feet in length. Its long and slender body can be of various shades of greyish-blue dorsally. The International Union for conservation of nature has listed blue whales as endangered species as they face numerous man-made threats such as ship strikes, pollution, ocean noise and climate change.

[#595] In dwarf wheat, sowing depth is related to
Correct Answer

(B) Length of coleoptile

Explanation

Solution: In dwarf wheat variety, sowing depth is related to the length of the coleoptile. Coleoptile is the cylindrical organs that ensheath the first leaf and shoot apex in the wheat seedlings. It helps in the emergence of the first leaf by protecting it during its passage through the soil.