Fertility - what is it? What is the fertility of the soil?

Everyone who is directly or indirectly familiar with natural history, the concept of "fertility" is familiar. What is a productive land, not by hearsay farmers and gardeners know. First of all, it is the ability of the soil to satisfy the needs of vegetation in moisture and nutrients.

What determines fertility?

This factor is determined by the intensity of sunlight and thermal energy. Both direct and indirect conditions affect fertility. What is the influence of factors? Direct are the conditions under which water reserves, environmental reactions, the amount and form of the necessary trace elements contribute to the accumulation of nutrients. What is the fertility of the soil that has arisen under indirect conditions? This is the condition of the soil, which was affected by the quantitative effects of microorganisms, as well as the processing of fertilizers. Direct and indirect conditions have a close relationship, having a direct impact on yield.

It must be remembered that any factor separately can directly affect fertility. What is a drought, many know. This is an example of how just one condition - a lack of water - has a direct effect on the yield, slowing down the growth of plants or completely destroying them. There is also an optimal effect of the plant life factor. In this case, there is good growth and harvest. In case of excessive exposure, such as prolonged downpours or excessive fertilization of the soil, toxicosis occurs, resulting in a significant decrease in yield.

Influence of climatic zones

Nevertheless, in most cases, the factors that determine the state of the soil are involved in the aggregate, ensuring optimal fertility. What is the soil-climatic conditions, almost everyone knows. They determine fertility. For example, in the tundra zone low temperature and waterlogging of the ground prevail, as a result of which the limiting conditions are created. The forest zone is characterized by insufficient moisture and acidity of soils. The latter is explained by the excess content of such a substance as sodium chlorine. Sandy soils are characterized by a lack of moisture and nutrients, and heavy-grained soil - low aeration and high soil density.

Thus, fertility is affected by various conditions associated with soil-forming factors.

Kinds

What is fertility? The definition of this concept implies the properties of the soil, which were formed under the influence of the natural course of soil-forming processes. They are not very variable over time, but are the determining condition for the formation of soil type. There are such types of soil fertility as natural, potential, artificial, effective, effective.

It should also be the existence of a phenomenon such as potential fertility. What is the gross reserve of nutrients in the soil? This is a collection of nutrients that are not only available, but also inaccessible form. They form the potential of valuable elements for the existence of plants. In this regard, the more fully the soil reserves are used, the higher will be its fertility.