Question

why do we need to improve the food production

Answer 1

we need to improve our food production because in feature the vegetables and fruits may be extinct or vanished due to deforestation and for cultivation.
to reduce this we need to improve our food production while in feature we may get some food to live .

Answer 2

Because the increased population demand increased production.But only production would not help there should be food security too.So it is really important to increase food production thru various means.
Hope it helps and pls mark it as the best answer. :-)