They are large plantations with trees or other types of plants of a single species, in this process the same methods are used for all plantations such as fertilization, pest control and high production. The most frequent plantations are: sugar cane, cereals, cotton and the pine tree. This monoculture system can reach maximum agricultural production in a short time and are generally used where there is a shortage of human labor.

It is said that this system is the typical example of the economy at scale, reaching low prices of the product that is harvested. Monoculture systems also present a series of disadvantages in the ecological sphere and biodiversity since they cause the erosion of soil nutrients, eroding it, replacing natural forests, as well as the alteration of the hydrological cycle, the decrease in the production of Food and the deterioration of the landscape in tourist areas can cause diseases since there is no diversity in the cultivation and because of this the animals that previously lived in that place cannot feed themselves.

The opposite happens with insects since they do get food in these monoculture sites, which can cause the spread of a large number of pests. Monocultures cause the loss of diversity in natural systems due to human manipulation in the destruction of species and due to pollution.