Question

how did introduction of machines in agriculture become misery to the poor farmers

Answer 1

It is a misery for the poor because they can't afford the expensive machines for their daily farming uses and maintenance of them is a harshly on them

Answer 2

Agriculture is getting mechanised . With the use of such advanced technology guarantees high production but it also costs a lot of money . The poor farmers are not able to purchase these machines and so their production is affected . This has reduced their conditions to bare subsistence level . Their condition is not much better than those landless labourers who work on other's field . In this way introduction of machines in agriculture bring misery to poor farmers.