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Improving the soil for planting trees in the house
Improving the soil for planting trees in the house
General soil improvement Different plants require different soil characteristics for growth. Some plants prefer upland soil. But some plants prefer waterlogged soil. Soil improvement to suit each plant is different, but in general, soil improvement can be done as follows:
1. Soil improvement in floodplains for some seasons If you want to grow crops, you can do it in two ways:
- Dig a ditch to make an embankment around the area you want to plant. When it rains, the floods pump out water. by pumping water to a water level much lower than the soil surface It can grow field crops as needed, for example in the central agricultural area of Bang Khen.
- Fill the soil above the water level. and planting the desired crops, for example along the roadside, often fill the soil to grow higher to plant trees along the road But the land filling should be wide. If filling only the height of the tree The soil will not receive enough water that the plant needs.
2. Improvement of soils with high groundwater
Resulting in the burial of the sewer pipe, which this drain must be made of terracotta. The connector of the pipe is covered with coarse sand to make it easier for water to penetrate. Deeply buried sewers out of the tillage zone. and the pipes must be placed far enough apart The sandy soil is placed far apart, but if it is fine-grained soil pipes must be placed in When water is drained from pipes into canals or ditches and pumped out, for example in Holland they pump water using wind turbines.
3. Sour soil or acid soil
The soil is generally weakly acidic. But there are some places that are very acidic. until nothing can be planted This acidic soil is caused by the following reasons:
1. caused by rocks or minerals that give birth to the soil
2. Caused by decay, decay of organic matter
3. Caused by the application of some chemical fertilizers can be improved by adding lime or marl But how much to put depends on the acidity of the soil. Soil content and organic matter in the soil, but in general, the use of lime is about 200 kg per rai.
4. Sweet Soil or Alkaline Soil
Sweet soil or alkaline soil is soil that has an alkaline reaction. In general, alkaline soils are rarely found outside of some parts of the world. In Thailand, it is often found in limestone mountains. Lopburi or Saraburi.
Alkaline soil is caused by two reasons:
- caused by rocks or minerals that give birth to the soil
- Caused by the application of some chemical fertilizers General improvement of alkaline soil Usually solved by adding sulfur powder and leaving it for 3-4 weeks. How much sulfur is added depends on the humidity. of soil organic matter and soil texture
5. Saline soil
Saline soils are soils that have a large amount of table salt in the soil that makes table salt toxic to some plants. This saline soil occurs for three reasons:
- Formed from rocks or minerals that give birth to the soil, such as soil in the northeastern region.
- Caused by table salt moved from other places by the wind blowing salt vapors, such as the soil around the sea or swept away for example, some places along the sea
- Caused by the application of some chemical fertilizers for a long time, but very little. The saline soil amendment is different depending on the type of occurrence. if the saline soil is formed by rocks or minerals that give birth to the saline soil; Usually accumulated deep underground, some of which are 1000 – 3,000 meters, such as in Austria. If this deep Salt does not come to the surface of the soil. Some places are only 50-60 meters deep, such as saline soil in the northeastern region. The salt dissolves in water and comes up with water that evaporates into the air.
The way to improve this type of saline soil is Prevent the water from bringing up the salt. maybe by any means Saline soil caused by moving from other places or caused by some chemical fertilizers. Improved by leaching in fresh water or by planting some plants that can absorb large amounts of salt. and then cut off the plant for use or discarded elsewhere, such as solving the saline soil of Holland like this
6. Fresh soil
Fresh soil is soil that does not grow anything. Because the essential nutrients of plants in the soil are depleted from the soil, such as those used to grow cassava. When planting cassava for a long time and cannot grow other crops. There is a solution to make the fresh soil become more fertile. But it costs a lot. Or it takes a very long time. In general, leaving the soil fresh and then fixing it later is not a good idea. The right way is that Should be planted soil nourishing crops alternate with planting cassava. But how can the correction be done as follows:
- Modified by adding organic fertilizer. For example, sprinkling compost, manure, and BKK fertilizers must be applied up to 12 tons per rai, along with the addition of high-potassium chemical fertilizers.
- Improved by growing legumes. May be a claw plant, often planted to make the claw plant stand tall and leave it for 10-20 years when cutting the claw for other uses. therefore turned to planting new cassava
