Agronomy - Study Mode

[#826] Optimum seed rate of tobacco is (kilogram/hectare)
Correct Answer

(B) 2 - 3

Explanation

Solution: The optimum seed rate is the amount of crop harvested from the field when provided with all favorable parameters like temperature, rainfall, seed quality, soil quality, fertilizers, etc. For tobacco plantations, the optimum seed rate is 2 - 3 kilogram/hectare.

[#827] The studies of plants in relation to soil and climate is called
Correct Answer

(A) Agronomy

Explanation

Solution: Agronomy is the study of the crop and plants for cultivation, production, and management in the field, also dealing with its soil environment and other basic parameters. Climatology is the study of the atmosphere and weather patterns over time. Agriculture is the practice of growing plants and livestock.

[#828] Which one is made cereal?
Correct Answer

(B) Triticale

Explanation

Solution: A hybrid formed by crossing Wheat and Rye is known as Triticale . It is the combination of the words Triticum (Wheat) and Secale (Rye). It was first bred in laboratories of Scotland by A. S. Wilson in 1873. It is mostly grown for forage or fodder, but nowadays also used as breakfast cereals.

[#829] Which one of the following causes more wastages of herbicide by drift
Correct Answer

(B) Ultra-low volume sprayer

Explanation

Solution: In agriculture, herbicides are often applied using various types of sprayers or dusters. When it comes to herbicide wastage through drift, the Ultra-low volume (ULV) sprayer is the most problematic. High volume sprayer: This type of sprayer typically produces larger droplets, which are less prone to drifting. While there might be some wastage due to drift, it is generally lower compared to other methods. Ultra-low volume (ULV) sprayer: These sprayers produce extremely fine droplets, which are highly susceptible to drift. Even slight wind or air currents can carry these droplets away from the target area, resulting in significant herbicide wastage. Hand sprayer: When used properly, hand sprayers can minimize drift since the applicator has more control over the direction and intensity of spraying. However, if not used correctly, drift can still occur. Duster: Dusters are used for applying dry formulations of herbicides. While they may not directly contribute to liquid drift, there can still be wastage due to dispersion of dry particles by wind. Therefore, Option B: Ultra-low volume sprayer is the type of sprayer that causes more wastage of herbicide by drift.

[#830] Which type of clay mineral lllite is?
Correct Answer

(B) 2 : 1 non-expanding

Explanation

Solution: IIIite is a group of clay minerals in a 2 : 1 ratio and is non-expanding. It is a secondary mineral precipitate, like a phyllosilicate or layered alumino-silicate. Its structure is a 2 : 1 sandwich of silica tetrahedron (T) - alumina octahedron (O) - silica tetrahedron (T) layers.