Agronomy - Study Mode

[#266] The highest water requiring crop is
Correct Answer

(D) Sugarcane

Explanation

Solution: The fields of Sugarcane require the highest amount of water, the yield is good when water is available in excess amount all the time, especially at the crucial stages of irrigation.

[#267] Which of the followings is not a sugar crop?
Correct Answer

(C) Clusterbean

Explanation

Solution: Sugarcane is the main producer of sugar and sugar beet is the second most crop to contribute to sugar production. Sugar beet contains approximately 16% of sugar in it. Hence Cluster bean is not a sugar crop. It is an annual legume crop.

[#268] Postponing of first irrigation to 40 - 45 days after sowing is always preferable for cotton crop to
Correct Answer

(B) Prevent excessive vegetative growth

Explanation

Solution: Postponing of first irrigation to 40 - 45 days after sowing is always preferable for the cotton crop to prevent excessive vegetative growth. The water requirement of cotton is low during the first 60 - 70 days after sowing & highest during flowering and ball development.

[#269] Application of gypsum is required more for
Correct Answer

(D) Groundnut

Explanation

Solution: Gypsum is very source of calcium and Sulphur which can improve the yield and quality of plants. Application of gypsum encourages pod formation and better filling up of the pods of groundnuts. Gypsum act as a soil amendment agent and reduces soil erosion by increasing the ability of soil to soak up water after precipitation hence reducing runoff.

[#270] Propanil (Stamp F-34) herbicide should be applied in rice after transplanting
Correct Answer

(B) 6 - 8 days

Explanation

Solution: Propanil is the herbicide used for the treatment of several types of grass and broad leaved weeds on a rice plantation. It should be applied after 6 - 8 days after transplanting. Propanil is an acetanilide post emergence herbicide with no residual effect.