Agronomy MCQ Question and Answer | Agriculture MCQ Question

Arrowing is known as the emergence of inflorescence in sugarcane. The inflorescence of sugarcane is a panicle known as an arrow. Generally, each flowering stalk terminates into a single arrow. Arrowing or flowering is not a desired trait of sugarcane from the point of production.
Arrowing depends upon various factors like variety, cultural practices, and environmental parameters.

Pulse crops belong to a family of legumes and they have the unique capability of fixing atmospheric nitrogen through their root nodules in symbiotic association with the bacterias. But Rajma (Phaseolus vulgaris) is the only pulse crop that does not fix nitrogen from the atmosphere.

NBSS stands for National Bureau of Soil Survey the headquarters of the Bureau is shifted to Nagpur in June 1978.

CSSRI stands for central soil Salinity Research Institute located in Karnal, Haryana, India.

IPC is an International Petroleum Company, settled in Peru.

ILCA stands for The International Livestock Centre for Africa and is located in Ethiopia.

A flame Photometer is a device used in inorganic chemical analysis to determine the concentration of certain metal ions like Sodium, Potassium, lithium and calcium.
It works on the principle of a controlled flame test with the intensity of the flame colour quantified by photoelectric circuitry.

Plants are classified based on the requirement of daylight for their proper growth and development i.e. long day plants and short day plants. The plants which require more than twelve hours of daylight are termed as long day plants. Whereas the plants which need less than 8 hours of daylight are short-day plants.
Out of the given options Lobia, pea and berseem are long day plants, whereas oat is a short day plant.

With the adequate availability of water for irrigation 4 - 6 irrigation is required for proper yield in wheat crop. It also depends on the soil type and rainfall. The crown root initiation (CRI) stage is the first recommended and crucial stage of irrigation.

Out of the given options, Silverfish is not a fish it is an insect. It is a species of small, primitive, wingless insect in the order Zygentoma.
It is silvery or light grey, combined with a fish-like appearance in its movements.

HD-2009 is a high-yielding double dwarf variety, highly resistant to rust. It is sensitive to 2, 4D. whereas 2, 4D is an herbicide that kills plants also it is a plant growth regulator.

Anaerobic condition in the rice field is responsible for gaseous loss of nitrogen by Denitrification. It is the microbial process of reducing nitrate and nitrite to gaseous forms of nitrogen, principally nitrous oxide and nitrogen.
Nitrogen loss by anaerobic oxidation of ammonium in the rice rhizosphere.