Цена 1 часа рабочей силы, как правило снижается.

Материал из m-17.info

Manure

Manure plays a role in the fertility of the soil by adding natural matter as well as nutrients, such as nitrogen that are trapped by bacteria in the soil. Higher organisms after that feed on the fungi and bacteria in a cycle of life that comprises the soil food web. Additionally it is a product obtained after decomposition of organic matter like cow-dung which replenishes the soil with essential elements and add humus to the soil.