Agronomy - Study Mode

[#441] The maximum area under hybrid rice in the world, is found in which country?
Correct Answer

(B) China

Explanation

Solution: China is the hub of hybrid rice, it is the country where hybrid rice was developed for the first time and is grown on a large scale. It is estimated to be planted on more than 50% of rice growing fields. China is the largest producer of rice in the world, making up 30% of global rice production.

[#442] Which one is not allowed in Organic Farming in India?
Correct Answer

(C) Using GMO crops

Explanation

Solution: The use of GMO crops is not allowed in organic farming in India. GMOs has genetically modified organisms or seeds or products are prohibited as an organic product. That means any organic farmer cannot grow GMO seeds. Even organic farmers who will suffer any contamination can lose their organic certification and the premium they earn for their organic crop.

[#443] Carthamus tinctorius is a botanical name of
Correct Answer

(B) Safflower

Explanation

Solution: Safflower is the false saffron, the scientific name Carthamus tinctorius belongs to the Compositae or Asteraceae family. It is a diploid oilseed crop used in cosmetics and as edible vegetable oil.

[#444] Hygroscopic water is retained in soil at
Correct Answer

(C) 31 bar

Explanation

Solution: Hygroscopic water is the water found on the soil as an extremely thin tightly held film around the soil particles, it is absorbed as moisture from the air. It is found not only in pores but also on the surface of soil particles. It can be retained from the soil by over drying at 105 degrees Celsius and pressure at 31 bar.

[#445] Which one of the following terms is used to denote the relative land area under sole crop required to produce the same yield as obtained under a mixed or an intercropping system at the same management?
Correct Answer

(A) Land equivalent ratio

Explanation

Solution: The land equivalent ratio is a term that describes the relative land area required under sole cropping to produce the same yield as under intercropping. It can be used whenever more than one type of yield can be obtained from the same area.