Why did the Irish learn from the Indians to grow potatoes, but it led to famine?

Because when the Irish learned to grow potatoes, he didn't learn the essence of potato growing in India. When planting potatoes, he didn't make reasonable use of the planting spacing between plants for farming, but when planting this crop, he planted every potato very close. Although this increased the yield of the year, it would make the potato suffer from virus pollution in the later processing. After the potato was destroyed by this virus, they didn't stop the potato from being destroyed. Instead, they planted a lot of seeds in the potato field next year to cultivate potatoes.

First, the introduction of potatoes Irish people have been pursuing low-cost and high-efficiency crops. When they met potatoes, they found that potatoes were this crop. Moreover, potatoes are very easy to grow and do not need any technology. After the introduction of plants such as potatoes, it can be said that it has greatly promoted the population growth of local people. Once the population grows, more food is needed to supply. There is no doubt that these foods are potatoes. Ireland's population has grown rapidly, almost doubling, and its dependence on potatoes is also very large.

Second, the introduction method of potatoes is wrong. Although they learned the technology of planting potatoes from others, they didn't fully learn this technology, because planting potatoes requires not only such planting, but also planting two different varieties of potatoes together to prevent them from spreading viruses. However, the Irish planted the same kind of potatoes together and planted them closely, and the potato late blight spread rapidly among different potatoes. This virus not only makes it difficult for potatoes to grow, but also harms different crops and plants.

At that time, potato production was greatly reduced, and people could not accept the reality. There were no potatoes, and the extra population had no food supply, which caused the famine at that time.