Question Bank on Agronomy
Question 01. What are the examples of biennial crops?
Answer: Sugarcane, sugar beet, banana, onion.
Explanation: During first year, a biennial crop completes it’s vegetative growth and during second year it completes reproductive growth.
Question 02. What is the scientific name of indigo?
Answer: Scientific name of indigo is Indigofera tinctoria.
Question 03. List the name of 4 cash crops
Answer: List of 4 cash crops
Question 04. What is the optimum time of tillage?
Answer: The optimum time of tillage depends on available soil moisture in soil. The optimum range of soil moisture for effective ploughing is 25 to 50 per cent depletion of available moisture in soil.
Question 05. What is the depth of the deep ploughing?
Answer: The depth of the deep ploughing is 25-30 cm.
Question 06. Which is the extreme form of tillage?
Answer: Zero tillage is the extreme form of tillage. In zero tillage, the primary tillage is completely avoided and the secondary tillage is restricted to seedbed preparation on the row zone only.
Question 07. What is tilth?
Answer: Tilth is the physical condition of soil.
Question 08. Who is the father of agronomy?
Answer: Pietro de’Crescenzi is father of agronomy.
Question 09. What is stale seedbed?
Answer: In a stale seedbed 1-2 flushes of weeds are destroyed before sowing or planting of the plant.
Question 10: What are some examples of winter season weeds?
Answer: Examples of some winter season weeds are as follows:
Question 11: Which is a pre-emergence herbicide?
Answer: , Pendimethalin, Butachlor, Thiobencarb, Pretilachlor, atrazine are pre-emergence herbicides.
Question 12: How many internodes are there in a maize plant?
Answer: There are commonly 20 internodes in a maize plant.
Question 13: What is the hulling percentage of basmati rice?
Answer: The hulling percentage of rice ranges from 72-80%.
Question 14. What are the principles of crop rotation?
Answer: The principles of crop rotation are as follows:
The crops with tap roots should be followed by fibrous root system crops.
The leguminous crops should be grown after non-leguminous crops.
Exhaustive crop should be followed by less exhaustive crops.
The crops of the same family should not be grown in succession.
Question 15: What is the rank of India in sugarcane production?
Answer: India is the second-highest producer of sugarcane in the world after Brazil.
Question 16: What is the rank of India in rice production?
Answer: India is the second-highest producer of rice in the world after China.
Question 17: In which state of India is durum wheat produced mostly.
Answer: Durum wheat produced mostly in Madhya Pradesh.
12: Stevenson, J. C. and Goodman, M. M. (1972). Ecology of Exotic Races of Maize. I. Leaf Number and Tillering of 16 Races Under Four Temperatures and Two Photoperiods 1. Crop Science. pp 864-868.
13: Researchgate. The hulling percentage LB ratio and grain classification of aromatic traditionally cultivated and basmati rice varieties.