Which Of The Following Is A Chemical Fertilizers Mcq?

Answer: Some examples of chemical fertilizers are ammonium sulphate, ammonium phosphate, ammonium nitrate, urea, ammonium chloride and the like.

What is meant by biofertilizer?

Biofertilizer can be defined as biological products containing living microorganisms that, when applied to seed, plant surfaces, or soil, promote growth by several mechanisms such as increasing the supply of nutrients, increasing root biomass or root area and increasing nutrient uptake capacity of the plant (Vessey,

Which Pteridophyte is used as biofertilizer?

Answer: Azolla pinnata is an aquatic plant, frond floating upon the surface of the water. It grows in quiet and slow-moving water bodies because swift currents and waves break up the plant. It is a good biofertilizer.

Is sheep manure hot or cold?

Hot manures, including those from rabbits, sheep, horses and goats, need to be composted or added to soil several months prior to planting so that it can decompose enough to not be a problem. Seasoning cold manures as well as hot manures may be the best practice.

Which fertilizer is added in rice fields?

The correct answer is Blue green algae.

Is ammonium nitrate used for fertilizer?

ammonium nitrate, (NH4NO3), a salt of ammonia and nitric acid, used widely in fertilizers and explosives. The commercial grade contains about 33.5 percent nitrogen, all of which is in forms utilizable by plants; it is the most common nitrogenous component of artificial fertilizers.

Is an organic fertilizer?

An organic fertilizer is a fertilizer that is derived from organic sources, including organic compost, cattle manures, poultry droppings and domestic sewage.

How much nitrogen is in ammonium nitrate?

about 33.5 percent nitrogen

Which manure is used in paddy crop?

It is enough to apply 12.5 kg zinc sulphate /ha, if green manure (6.25 t/ha) or enriched FYM, is applied.

Blanket fertilizer recommendation.

Short duration: NPK @ 120:40:40 kg ha-1
Medium duration: NPK @ 150:50:60 kg ha-1
Long duration: NPK @ 150:50:80 kg ha-1

What are the 4 types of manure?

The different sources of manure are mentioned below: Cattle dung, urine, and slurry from biogas plants. Wastes from human habitation such as human urine, night soil, sludge, sewage, domestic waste. Droppings of goat and sheep.

The different types of manure include:

  • Green manure.
  • Farmyard manure.
  • Compost manure.

What is a cold manure?

Cold manures contain a higher ratio of carbon to nitrogen and release nutrients in a much slower manner. Cow and sheep manure are both considered cold manures. It is still a good idea to allow manure to mature before using it in the garden, regardless of whether it is considered hot or cold.

Which of the following is a chemical fertilizers Mcq?

Answer: Some examples of chemical fertilizers are ammonium sulphate, ammonium phosphate, ammonium nitrate, urea, ammonium chloride and the like.

Which of the following is a chemical fertilizer Mcq?

Answer: Some examples of chemical fertilizers are ammonium sulphate, ammonium phosphate, ammonium nitrate, urea, ammonium chloride and the like.

What are the three main types of chemical fertilizers?

Nitrogen, phosphorus and potassium, or NPK, are the “Big 3” primary nutrients in commercial fertilizers. Each of these fundamental nutrients plays a key role in plant nutrition. Nitrogen is considered to be the most important nutrient, and plants absorb more nitrogen than any other element.

How much fertilizer does India import?

India imported 10.61 lakh tonnes of fertilisers in FY19, rising to 19.15 lakh tonnes by FY21. The imports comprised four categories of fertiliser—urea, DAP (diammonium phosphate), MOP (muriate of potash) and NPK (nitrogen, phosphorous and potassium).

When was chemical fertilizers first used?

Neolithic man probably used fertilizers, but the first fertilizer produced by chemical processes was ordinary superphosphate, made early in the 19th century by treating bones with sulfuric acid. Coprolites and phosphate rock soon replaced bones as the P source. The K fertilizer industry started in Germany in 1861.

Which is the best organic fertilizer Mcq?

Manures and Fertilizers MCQ Question 2 Detailed Solution

The correct answer is Compost.

What fertilizer is used in rice fields?

Ammonium sulphate

What is the chemical formula of fertilizer?

Nitrogen, phosphorus and potassium

FertiliserFormulaEssential element(s)
Ammonium nitrateNH 4NO 3Nitrogen
Ammonium sulfate(NH 4) 2SO 4Nitrogen
Ammonium phosphate(NH 4) 3PO 4Nitrogen, phosphorus
Potassium nitrateKNO 3Potassium, nitrogen

Which of the following is used as a chemical fertilizers?

Nitrogen, Calcium oxide (CaO), and Calcium cyanamide (CaNCN) are used as fertilizers.

What is MAP fertiliser?

Mono ammonium phosphate (MAP) is a widely used source of phosphorus (P) and nitrogen (N). It's made of two constituents common in the fertiliser industry and contains the most phosphorus of any common solid fertiliser. MAP has been an important granular fertiliser for many years.

Dated : 04-Jun-2022

Category : Education

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