This is a very practical way to look at farming. we see farmers lose a lot during harvest season because they have no way to preserve what they produce, so the market gets flooded and the price just crashes. Your point about small local processing units is the real solution, because not every farmer needs a big factory, most times a small community unit is enough to change everything.

I especially liked your mango example. A mango that rots in 3 days can feed a family for months if it becomes juice or dried mango. If Pakistan can get that support for farmers, it will not only help income, it will also give young people a reason to stay in agriculture instead of running away from it.