Fertiliser Technology
A fertiliser plant is classified as a gas based fertiliser plant, when it uses __________ gas as a source of hydrogen for the manufacture of ammonia.

Producer
Coke oven
Natural
Coal

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Fertiliser Technology
Potassic fertilisers

None of these
Stimulate early growth and accelerate seeding
Help in development of starches of potatoes and grain
Are useful during early stage of the plant growth

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