Agronomy - Study Mode

[#706] The seed rate of potato is
Correct Answer

(D) 20 - 25 quintals/hectare

Explanation

Solution: The seed rate of potatoes is 15 - 18 quintals/hectare for round varieties and 20 - 25 quintals/hectare for oval varieties. While the yield of any cultivation depends upon the quality of the seed, soil type, irrigation, spacing, climate, rainfall, etc.

[#707] Direction of Stevenson Screen in Northern hemisphere should be
Correct Answer

(A) North facing

Explanation

Solution: A Stevenson screen is a shelter or enclosure for meteorological instruments against precipitation and direct heat radiation from the outside environment. The screen should face pole wards, which means it should face north in the northern hemisphere and south in the southern hemisphere to keep the sun from shining directly on the thermometers and affecting the readings.

[#708] Which potential is not calculated for soil water?
Correct Answer

(B) Turgor potential

Explanation

Solution: Matric potential, pressure potential and gravity potential are all calculated for soil water while turgor potential is not calculated for soil water. The turgor potential is the difference between osmotic potential and water potential, assuming that matric potential and gravitational potential are negligible. A matric potential exits in soil when the soil is unsaturated and the water in the soil is under tension.

[#709] 'Awarodhi' variety of gram is resistant to
Correct Answer

(A) Wilt

Explanation

Solution: Awarodhi variety of gram is resistant to Wilt. Chickpea is a plant that belongs to the family of legumes. It is very high in fiber content and protein content. While wilting is the disease in grams caused by a fungus that lives in the soil. Leaves become yellow, dry, and ultimately drop from the plant.

[#710] Central Institute of Agricultural Engineer established at
Correct Answer

(C) Bhopal

Explanation

Solution: Central Institute of Agricultural Engineer was established at Bhopal on 15 th February 1976 under ICAR. The main motive of this institute is to address the areas of farm machinery, post-harvest technology and energy in agriculture. It also includes activities based on Agro-industrial extension, Instrumentation, irrigation and Drainage Engineering.