On another planet, there are different types of soil that have different characteristics. There are looser, nutrient-poor soils and, on the other hand, more compact, nutrient-rich soils. The composition of each soil determines its characteristics and fertility. In this case, we are going to talk about loamy soils.
In this article we will tell you what loamy soils are, what their characteristics are and why they are considered fertile soils.
What are loamy soils
Loamy soils are soils consisting to a greater extent of silt than of it is a sediment whose size does not exceed 0.05 mm. Due to its small size and light weight, it is carried by air currents and rivers, which is why it is deposited in different areas, especially near river beds.
Depending on the texture, loamy soils fall into one of three soil classifications, the other two being sand and clay. Sandy soils are characterized by a thicker, rougher and less cohesive texture. Clay, on the other hand, is soapy when wet and very water resistant.
Loamy soils are also composed of gravel, clay, and sand; perhaps it is this specificity that makes them so productive and easy to use. However, for loamy soil to be considered loamy, it must contain at least 80% silt.
Loamy Soil Properties
Slimes are brittle and soft, allowing them to travel with wind and water. During this journey, the particles become smaller and smaller due to the influence of different road surfaces and other chemical processes that take place along this journey.
The silt is able to completely change the appearance of a landscape because after its course it can be deposited in spaces such as lagoons or wetlands. As the size of this reservoir increases, the water will eventually move to another body of water. In fact, many deltas are caused by silt movement and deposition.
Loam soil particles are characterized as small particles: slightly larger than clay particles, but slightly smaller than fine sand particles.
The silt is characterized because, taking into account all its dimensions, all its particles have more or less the same size, this distinguishes it from clay, whose particles are more irregular between them. The particles that make up loamy soil are light, so they are easily transported by wind and water.
They are usually very dark brown in color and look a bit like clay. as they mold easily and are sticky when wet. However, loamy soils crumble when dry and are not as hard and dense as clay soils. Loamy soil is soft and unstable when wet, but crumbles when it dries, giving it a dusty texture.
Why are they fertile?
This soil is characterized by being very fertile, this is due to the high rate of decomposition of the organic matter it contains. As a result, a large amount of nutrients are produced, and due to the properties of loamy soils, these nutrients stay longer in these soils.
The fertile soil is very easy to work and cultivate. These are soft soils that drain and do not look plastic when wet.
Particularly loamy soils can be found on the banks of rivers, since it is through these soils that they move from one place to another. This type of soil is often found around riverbeds or in places that have previously been flooded.
The Nile Delta in Egypt is a very clear example of silty soil, with all the characteristics that make it up.
Crops
Loamy soils are characterized by the fact that they allow the growth of almost any plant or food, except for organisms that need very dry soil to grow. Indeed, the silt allows the soil to retain a lot of moisture and also contributes to constant ventilation because the air circulates freely between the particles.
As previously mentioned, silt-rich soils are often found along river banks. Therefore, these spaces are very fertile and suitable for growing different foods.
The aforementioned Nile Delta is considered one of the most fertile areas, with flourishing crops for at least a millennium.
When the same land is over-cultivated, the fertility of the loamy soil suffers as it hampers the water filtration process during the rainy season. Also, if this overgrown soil is not moistened enough, it can become very stiff and difficult to work with. Clay soil will provide significant fertility potential as long as it is kept moist and excessive tillage is avoided. For example, lettuce, rice, cabbage and artichokes can be grown in fertile soil. Trees like willows and poplars grow.
Loamy soils for construction
Just as loamy soil is considered ideal soil for agriculture due to its high fertility, it is also important to note that it may not be ideal soil for building houses and other structures.
A loamy soil is characterized by being damp and cold because it retains moisture for a long time. This is done with unstable, slow-draining soils. As a result, silty soils swell due to water retention, which constantly collides with the structure and weakens it over time.
In fact, recent research has determined that silt has the potential to play an important role in soil liquefaction (the weakening of the Earth’s surface after earthquakes). Liquefaction can be fatal as the ground at the base of the structure weakens and may collapse.
As you can see, this type of soil is one of the best for crops and sometimes for construction. Hopefully with this information you can learn more about loamy soils and their characteristics.