explain with an example how the use of fertilizer can alter the soil chemistry???
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Fertilizer can effect the fertility of the soil as the soil have a natural process to getting nutrients from the atmosphere and then producing hummus but when we add fertilizer in them it effect them as fertilizer arnt natural and they effect the natural process of soil and u know that once the process it changed it effect all of them so the fertilizer make the crop grow at it's own minerals and chemical and the soil can't provide it's own natural contaminets.
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nancy28:
which principles is followed in controlling weeds through biological methods
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we can control weeds in biological manners as putting weedicides which r prepared in factories
we can either pull of them as some local framers do
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