Fertiliser Technology
5-10-5 fertilisers mean that they contain

5 to 10% filler & carrier of soil conditioners
Only 5 to 10% active fertiliser constituents
5, 10, 5% respectively of N₂, P₂O₅ and K₂O
None of these

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Fertiliser Technology
Excessive use of chemical fertilisers causes shrivelling of the roots and wilting of the plant, because the

Soil becomes too alkaline
Osmotic pressure of the soil water becomes less than that of the plant sap
Soil becomes too acidic
Osmotic pressure of the soil water becomes higher than that of the plant sap

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