Agronomy MCQ Question and Answer | Agriculture MCQ Question

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.

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.

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.

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.

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.

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.

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.

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.

To calculate the volume required per hectare (ha) for spraying, we need to find the area covered by one swath and then multiply it by the number of swaths required to cover one hectare.
Area covered by one swath = length × swath width = 70 m × 1.4 m = 98 m²
To cover one hectare (10,000 m²), we need to divide the total area by the area covered by one swath:
Volume required per hectare = (Area of one hectare) / (Area covered by one swath) × Volume for one swath
Volume required per hectare = (10,000 m²) / (98 m²) × 2 L = 204.08 L
Rounding off 204.08 to the nearest whole number gives 204 L. So, the correct answer is indeed Option B: 204 L.

Growing coconut, black pepper, and ginger simultaneously in the same field are called Multistoried Cropping means growing plants of different heights in the same field at the same time.
Coconut is the tall heighted tree, while black pepper is a normal height plant and ginger is the herbaceous plant grown underground.
This practice is mostly used in Orchards and plantation crops for maximum use of solar energy even under high planting density.