agronomy question answer for mcq or one liner 2025
1. Q: The most common type of water conveyance system in the farm is?
A: Open channel.
👉 Open channels are simple, cost-effective ditches or furrows used to carry water from source to field.
2. Q: The seeding or planting the crop into a growing stand is called?
A: Interplanting.
👉 Interplanting is growing a new crop among the existing plants without removing them.
3. Q: What is other name for Kangni (Setaria italica) millet?
A: Foxtail millet.
👉 Foxtail millet is a drought-resistant cereal known as Kangni in India.
4. Q: Dhaincha is a green manuring crop which corrects alkalinity if grown for?
A: 4-5 years.
👉 Continuous cultivation of Dhaincha improves soil health and reduces pH in alkaline soils.
5. Q: Beat, break, jerk method for fiber extraction is used in?
A: Jute source.
👉 This traditional method is used to separate jute fibers after retting.
6. Q: Contact selective herbicide is?
A: Propanil.
👉 Propanil kills weeds on contact without harming the main crop like rice.
7. Q: Elephant grass is popularly known as?
A: Napier grass (Pennisetum purpureum).
👉 It's a high-yielding forage grass used for feeding livestock.
8. Q: Green oat is the best crop for?
A: Hay making.
👉 Oats harvested green are ideal for nutritious hay for animals.
9. Q: In maize, soft starch is called amylase and hard starch is called?
A: Amylopectin.
👉 Amylose gives softness; amylopectin gives hardness to maize kernels.
10. Q: Legume crops are also known as?
A: Restorative crops.
👉 Legumes fix nitrogen in the soil, restoring fertility.
11. Q: Paddy grain has?
A: 4–6% of bran.
👉 Rice bran is the outer layer and a rich source of nutrients.
12. Q: Proso-millet is not an?
A: Erosion-resistant crop.
👉 Unlike other millets, proso-millet has shallow roots, offering less soil binding.
13. Q: Safflower oil is valued for its high?
A: Linoleic acid.
👉 Linoleic acid is a heart-healthy polyunsaturated fatty acid.
14. Q: Sugarcane considered mature if brix ratio is?
A: 18–20.
👉 Brix indicates sugar content; 18–20% means good maturity for harvest.
15. Q: The most suitable crop rotation to increase soil nutrients is?
A: Groundnut–wheat.
👉 Groundnut fixes nitrogen, benefiting the following wheat crop.
16. Q: The temperature at which highest % of seed germination occurs is called?
A: Optimum temperature.
👉 It's the ideal range for a seed to sprout quickly and healthily.
17. Q: Wheat bran is best source of?
A: Phosphorus to animals.
👉 Wheat bran is rich in minerals like phosphorus, essential for animal health.
18. Q: Predominantly used method of irrigation for coconut is?
A: Basin flooding.
👉 Water is filled around the base of the tree in a basin structure.
19. Q: Beaten rice is also known as?
A: Maked rice.
👉 It's flattened rice made by pounding parboiled rice.
20. Q: Contract farming started for the first time in?
A: Tamil Nadu.
👉 Tamil Nadu pioneered the organized farming system under contracts.
21. Q: Eyes in potato are useful for?
A: Vegetative propagation.
👉 New potato plants sprout from the "eyes" or buds.
22. Q: Greening of potato results in?
A: Decrease in nutritional quality.
👉 Exposure to light causes chlorophyll and toxic solanine formation.
23. Q: In morning, groundnut plant is?
A: Self-pollinated.
👉 Groundnut flowers self-pollinate before fully opening.
24. Q: Little millet can withstand?
A: Drought and waterlogging.
👉 It's a hardy millet tolerant to both dry and wet conditions.
25. Q: “Parawilt” is a physiological disorder in?
A: Cotton.
👉 It causes sudden wilting in cotton plants due to poor oxygen supply to roots.
26. Q: Protogyny is present in?
A: Bajra.
👉 Female flower parts mature before male ones, aiding cross-pollination.
27. Q: Sahyadri Megha is a newly released variety of?
A: Rice.
👉 It’s a high-yielding, climate-resilient variety developed in India.
28. Q: Suitable temperature for crop cultivation is?
A: 15–30°C.
👉 Most crops grow optimally within this temperature range.
29. Q: Natural farming was developed in?
A: Japan.
👉 Japanese farmer Masanobu Fukuoka introduced this chemical-free method.
30. Q: Thumb rule for depth of seed sowing is?
A: 3–4 times the diameter of the seed.
👉 Helps ensure the seed is not buried too deep or too shallow.
