Question

a farmer was advised not to use a particular type of fertilizer for his crop and harvesting a crop of peas give one reason for such an advice name any two crops other than pea crop which might have shown the same effect

Answer 1

Because the nitrogenous compounds restored by peas will be of no use and the fertilizer also not good for the soil.
crops that will work as peas do are
1)grams

Answer 2

After harvesting a crop of pea the soil would retain nitrogenous compounds for some time Since pea a leguminous plant always produce kind of Nitrogen compounds as the rhizobium symbiotic bacteria in the root nodules of these converts the nitrogen from the atmosphere into nitrogenous compounds so the soil will already have a good amount of Nitrogen compound and the farmers was advised not to use the fertilizers containing the nitrogen since the amount of Nitrogen compound is already high in the soil

. Two crops other than pea which might have showed the same effect could be the crop of Gram and pulses