Agronomy - Study Mode

[#341] Value of C in Baule-Mitscherlich Equation
Correct Answer

(B) 0.30

[#342] Match the following columns: Column I (Centres) Column II (Place) a. NBSS 1. Karnal b. CSSRI 2. Nagpur c. IPC 3. Peru d. ILCA 4. Ethiopia
Correct Answer

(B) a-2, b-1, c-3, d-4

Explanation

Solution: 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.

[#343] Flame photometer is used in determination of
Correct Answer

(C) Potassium

Explanation

Solution: 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.

[#344] Which of the following is not a long day plant?
Correct Answer

(D) Oat

Explanation

Solution: 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.

[#345] Where adequate irrigation water is available four to six irrigation are applied to the wheat crop. At which of the following stages of growth is the first irrigation recommended?
Correct Answer

(A) CRI stage

Explanation

Solution: 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.