Agronomy - Study Mode

[#556] Nitrification of organic nitrogen compound is brought by
Correct Answer

(B) Autotrophic organism

Explanation

Solution: Nitrification is the process of converting ammonia into nitrite or nitrate, with the help of soil microorganisms with the consumption of oxygen. Nitrification is the aerobic process performed by the group of autotrophic bacteria and archaea.

[#557] Lens esculenta is the scientific name of
Correct Answer

(D) Lentil

Explanation

Solution: Lens esculenta is the scientific name of Lentil a type of pulse that belongs to the family of legumes. It is an annual plant known for its lens-shaped seeds. Lentils have the second highest ratio of protein to food energy of any legume after soybeans. It contains carotenoids, lutein and polyunsaturated fatty acids.

[#558] Dolomite is
Correct Answer

(D) MgCO 3 CaCO 3

Explanation

Solution: Dolomite is the sedimentary carbonate rock that contains a high percentage of the mineral, MgCO 3 CaCO 3 . Chemically it is an anhydrous double carbonate mineral composed of calcium and magnesium carbonate. The mineral dolomite crystallizes in the trigonal-rhombohedral system. It forms white, tan, grey or pink crystals.

[#559] Seed rate for transplanting of bajra is
Correct Answer

(A) 1 kg

Explanation

Solution: Bajra is the edible seeds of pearl millet plants. It is a type of Kharif crop. It grows well in dry and warm climatic conditions and its drought tolerant crop requires low annual rainfall ranging between 40 cm to 60 cm. Pearl millet nurseries are raised in well fertilized raised seed beds. Healthy seedlings of 15 - 20 days old are transplanted in the water soaked fields. The seed rate for transplanting Bajra is 1 kg.

[#560] Select the pair which is not correctly matched
Correct Answer

(D) Indian dwarf wheat - T. Vulgare

Explanation

Solution: Emmer wheat - Triticum Dicoccum Macaroni - Triticum Durum Mexican wheat - Triticum Aestivum Indian dwarf wheat - Triticum Sphaerococcum