Agronomy MCQ Question and Answer | Agriculture MCQ Question

Lodging is defined as the permanent displacement of crops that stems from their vertical position to the ground level, which ultimately reduces the yield as it becomes difficult to harvest.
The timing of lodging can control its effect on yield, disease, grain moisture, quality and evenness of ripening. Crop lodging time in Sugarcane was conducted in Hawai.

Deficiency symptoms of nitrogen occur in plants and can be first observed on lower leaves that are older. The overall growth of plants becomes poor and leaves become pale green to yellow because the plant become deficient in chlorophyll in the absence of nitrogen.

Maize, Moong and Jowar are Short day plant means they require a maximum of 8 hours of daylight.
But wheat is not a short day plant, it is a long day plant as it requires a maximum of 12 - 16 hours of day light for proper growth and development of the plant.

IBPGR is International Board for Plant Genetic Resources located in Rome, Italy.
IITA is the International Institute of Agricultural was founded in 1967 and is located in Ibadan, Nigeria.
ILRAD is International Laboratory for Research on Animal Disease and is headquartered in Nairobi, Kenya.
ICRISAT is International Crops Research Institute for Semi-Arid Tropics and is headquartered in Hyderabad, Telangana, India.

Productivity of an intercrop per unit area of ground compared with that expected from sole crop sown in the same proportions is termed as Land Equivalent Ratio.
The Land Equivalent Ratio (LER) is the ratio of the area under sole cropping to the area under intercropped needed to give equal amounts of yield at the same management level. It is the sum of the fractions of the intercropped yields divided by the sole crop yields.

Percolation is the movement of water in a downward direction within the soil. It is also termed permeability or hydraulic conductivity.
It is the slow process of the movement of water through pores or free spaces in the soil.
The water flows to recharge the groundwater in the water table and aquifers.

A catch crop is a fast-growing crop that is grown between successive planting of the main crop. It makes more efficient use of growing space.
These catch crops are sown to prevent minerals from being flushed away from the soil and at the same time, it helps to get an additional income without further investment.

Ammonium sulphate is an inorganic salt and is most commonly used as a soil fertilizer. It contains 21% of nitrogen and 24% of sulphate.
Hence, 21% of 500 is 105 therefore, approximately 100 kg of nitrogen is supplied by 500 kg of Ammonium sulphate.

Phalaris minor is a pernicious weed, which infests several crops during the winter season, particularly the Dwarf wheat in rice - wheat intercropping sequence.
It grows as a tufted annual bunchgrass with a spike like a panicle and grows up to 1.8 meters in height. It is used as fodder or forage for livestock and birdseed.

A chisel is a tool with a cutting edge blade on its end, for carving or cutting a hard material such as wood, stone or metal by hand or mechanical power.
It is a popular farming tool used for deep tillage, to loosen and aerate the soil while leaving crop residue at the surface of the soil. It generally ploughs to the depth of 50 - 60cm.