Agronomy - Study Mode

[#711] The depth of sowing of bajra is
Correct Answer

(A) 1 - 2 cm

Explanation

Solution: Bajra, also known as Pearl Millet, is a Kharif crop and can be grown in different soils. It does not grow well in waterlogged soils. It is sowed by using a ridge or furrow system and the depth of sowing of bajra seed is 1 - 2 cm in the ground.

[#712] Multicoloured flower is a characteristics of
Correct Answer

(B) Lantana

Explanation

Solution: Flowers are the most attractive part of the plant. Flowers of lantana plants are multicolored and have a vine-like sprawling appearance from woody branches. Rounded bunches of small, brightly and multicolored flowers that may be red, orange, white, yellow, purple or blue are unique characteristics of the Lantana plant.

[#713] Hulling percentage of rice is
Correct Answer

(C) 67% - 70%

Explanation

Solution: Thank you for your observation — it's a valuable point and highlights an important distinction. You're right in noting that under practical field conditions , the hulling percentage of rice may vary between 60% to 66% , especially when dealing with: - Lower quality or immature paddy - Poor post-harvest handling - Suboptimal dehusking equipment However, when we refer to the standard or expected hulling percentage in the context of agronomy or agricultural engineering , we are typically talking about ideal or optimal conditions — that is: - Well-dried and properly matured paddy - Clean grain without impurities - Efficient hulling machinery Under these ideal conditions, the hulling percentage — which is the ratio of brown rice (dehusked rice) to the original paddy weight — is accepted to be in the range of 67% to 70% . This value is based on research data and is used as a benchmark in academic and competitive exams related to agriculture . Why Option C (67% - 70%) is Correct: Hulling percentage = (Weight of brown rice / Weight of paddy) × 100 A value of 67%–70% indicates high efficiency and good grain quality . This range is also mentioned in many standard agronomy textbooks and government agricultural manuals . It represents optimal post-harvest output , not average field-level performance. So, while it's true that in less controlled conditions the percentage might be slightly lower (60%–66%), the correct answer in the academic and exam-oriented context remains Option C: 67%–70% , as it represents the theoretical or ideal hulling standard used for benchmarking.

[#714] First Agricultural University in India was established in 1960, at
Correct Answer

(C) Pantnagar

Explanation

Solution: The Govind Ballabh Pant University of Agriculture is the first agricultural university in India. It was inaugurated by Jawahar Lal Nehru on 17 th November 1960 and is located in Pantnagar, Uttarakhand. This University is regarded as the harbinger of the Green Revolution in India. It brought a significant force in the development and transfer of High Yielding seeds and other agriculture-related technologies.

[#715] The concept of Q/I relationship was developed by
Correct Answer

(B) Beckett

Explanation

Solution: Beckett 1964 has developed the concept of the Q/I relationship. K is potassium ions here in the soil solution and I is the Intensity factor while Q is the Quantity factor. As per this concept, K+ in the soil solution to the changes in exchangeable K+ in the soil thus, a develop a Quantity - Intensity (Q/I) relationship for predicting the K availability to plants.