Agronomy - Study Mode

[#866] Zero tillage system was first used successfully in 1950 in pasture removation in
Correct Answer

(D) USA

Explanation

Solution: 'Zero tillage system' was first used successfully in 1950 for pasture renovation in the USA. A zero tillage system is an agricultural technique of growing crops or pasture without disturbing the soil through tillage. It decreases the amount of soil erosion.

[#867] Temperature of cold waves is less from normal by how many degrees?
Correct Answer

(A) 6° - 8°C

Explanation

Solution: A cold wave is declared as cold when the minimum temperature of the wave is 10 degrees Celcius or below. It is usually less than normal by 6° - 8°C.

[#868] Quantum yield of Photosynthesis
Correct Answer

(B) 0.08 - 0.12

Explanation

Solution: The quantum yield of any radiation-induced process like photosynthesis is the number of times a specific event occurs per photon absorbed by the system. It is a definitive measure of the energetic efficiency of photo autotrophy. It is calculated from light intensity and the rate of photosynthesis. It is approximately 0.08 - 0.12.

[#869] Which of the following is spreading type variety or groundnut?
Correct Answer

(B) M-13

Explanation

Solution: M-13 is one of the high yielding and spreading types variety of groundnut. The main axis of the plant is very short and erect and it spread horizontally along the ground usually an inch above the ground except at the tips.

[#870] Green revolution In India was a result of
Correct Answer

(D) Development of dwarf varieties of wheat and rice

Explanation

Solution: The Green Revolution began in the 1960s initiated by Norman E. Borlaug, during which agriculture was converted into a modern industrial system by the adoption of technology, high yielding variety and dwarf varieties of wheat and rice.