Agronomy MCQ Question and Answer | Agriculture MCQ Question

Selman Abraham Waksman, the microbiologist, was born in the rural Ukrainian town of Novaya Priluka. He discovered streptomycin and used the word antibiotic for the first time in 1943.
An antibiotic is a type of antimicrobial substance active against bacteria. They are the most important type of antibacterial agent for fighting bacterial infections. They either kill or inhibit the growth of bacteria.

The Pod borer is the most dangerous pest of chickpeas, causing heavy damage to the crop. This pest has been reported to cause 50% - 60% damage to chickpea pods. It is estimated that pod borer destroys about 21% of total chickpea production each year.
Using resistant varieties and implementing good agronomic practices can help to manage pod borer.

Relay cropping is a method of multiple cropping where one crop is seeded into a standing second crop well before the harvest of the second crop. e.g., sowing pulses in a rice crop before harvest.
Intercropping is growing two or more crops nearby. e.g., wheat after rice.
Multi-tier cropping is the pattern of growing two or more crops of different heights simultaneously on a piece of land. EG: coconut + pepper + pineapple + grass.
Sole cropping is the growing of a single type of crop on a piece of land. Eg: potato.

Soil acidity is something that is neutralized by lime or a buffered salt solution to raise the pH to a specified value (usually 7.0 or 8.0) but which cannot be replaced by an unbuffered salt solution. It can be calculated by the subtraction of salt replaceable acidity from total acidity. Maximum residual acidity is associated with the continuous soil application of ammonium sulphate.

Madhya Pradesh can be divided into 11 agro-climatic zones.
Malwa plateau, Chattisgarh plains, Chattisgarh's northern hills region, Kymore Plateau & Satpura Hills, Central Narmada Valley, Vindhya Plateau, Grid region, Bundelkhand, Satpura plateau, Nimar plains and Jhabua Hills are among them. It includes an area of the western plateau and a hill zone.

Ganga safed-2 of maize is one of the popular varieties and is a double top cross hybrid. This variety is suitable for the sub-tropical of Jammu Division, Uttar Pradesh and Bihar and it matures in 95 - 100 days. This variety thrives in crop rotation with wheat, potato, mustard and other crops. grains are of medium size, white in colour and medium-maturing hybrid. It is also resistant to foliar diseases such as bacterial stalk rot.

Dhurrin is a cyanogenic glycoside produced in many plants. It is the active principle causing sorghum poisoning in many of its varieties in 1906 as the culprit of cattle poisoning by hydrogen cyanide. In hot and dry conditions, these plants become stressed, causing them to accumulate these toxins.
Dhurrin’s name is derived from the Arabic word for sorghum, transliterated to "Dhura".

The most concentrated fertilizer used for nutrient supply is anhydrous ammonia.
Ammonia (NH₃) in anhydrous form, that is without water, is an efficient and widely used source of nitrogen fertilizer. It has the highest content of nitrogen at 82%. Under atmospheric temperature and pressure, it is a colourless gas with a sharp and penetrating odor. It is easily accessible to farmers and simple to implement. However, it can be dangerous if not handled properly.

Gross domestic product (GDP) is the standard measure of the value added created by a country's production of goods and services over a given fiscal period. The share of agriculture in GDP is approximately 15%.
Agriculture and allied sectors like animal husbandry, forestry, and fishing accounted for 15.4% of the GDP with 41.49% of the workforce in 2020. India ranks first in the world with the highest net cropped area, followed by the US and China.

The term "agronomy" is derived from the Greek words "agros" meaning "field" and "nomos" meaning "management." It is something dealing with managing crops grown in a field with the application of techniques.
It is a branch of agriculture that deals with field crop production and soil management.