topsoil
Potting soil typically retains the most water as it is designed to hold moisture for longer periods of time to support plant growth. Sand has low water retention capabilities due to its large particles and fast drainage, while local topsoil's water retention can vary depending on its composition and organic matter content.
Clayey soil hold the most water of all, as sand and chalk. Loamy soil holds water but not as much as clayey.
Clay has a higher surface area and increased binding capacity, allowing it to hold more water than topsoil and sand. The small particle size and microscopic pores in clay soil help to retain water through adhesion and cohesion forces, making it more effective at absorbing water. Sand, on the other hand, has larger particles and gaps between them, leading to less water retention capability compared to clay.
sand
Sandy soil holds the least water, while clay soil holds the most water due to its small particle size and high water retention capacity. Loamy soil, which is a mix of sand, silt, and clay, is considered ideal for plant growth as it offers a good balance of drainage and water retention.
Clay holds more water than sand and silt. Clay particles are smaller and create a denser structure that can hold water more effectively than the larger particles of sand and silt.
Sandy soil typically holds the least amount of water due to its large particles and low organic matter content, which allows water to drain through quickly.
Sandy soil is typically nutrient-poor but drains well, whereas clay soil is nutrient-rich but often retains water. A soil that holds water poorly but has many nutrients may be loamy soil, which is a mix of sand, silt, and clay and offers good drainage while being nutrient-rich. Organic matter can also improve water retention in nutrient-rich soils.
i think sand but you should testit first ot find out
Yes, you can successfully grow grass by putting topsoil over sand. Topsoil provides nutrients and a better environment for grass roots to grow, while sand helps with drainage. This combination can support grass growth effectively.
Topsoil is typically composed of a combination of mineral particles (like sand, silt, and clay), organic matter (such as decomposed plant and animal material), water, and air. The exact composition can vary depending on location and environmental factors.
Subsoil water is water that is located below the uppermost soil layer, known as topsoil, in the ground. It is found in the layer of soil beneath the topsoil and contributes to groundwater recharge. Subsoil water is essential for sustaining plant growth and maintaining soil moisture levels.