Everything about acidic soil
Before examining acidic soil, we must first get acquainted with the concept of soil acidity.
A logarithmic scale called pH is generally used to measure the acidity of different materials.
The pH ranges from 15 to zero, and the smaller the number, the more acidic the substance.
Numbers greater than seven indicate a base or alkaline substance.
And the number seven itself is a middle ground that indicates it is a neutral substance.
Regarding soil acidity, it should be said that most soils have a pH of about seven.
If the soil pH is less than 6.5, it is considered acidic soil. In this article we are going to present Everything about acidic soil.
We provide Everything about acidic soil
It is important to know the acidity or pH of the soil because the pH of the soil affects the yield and growth of plants.
For example, in the case of field crops, greenhouse projects or in the cultivation of some sensitive plants, if you make a mistake in determining the correct pH of the soil, a person may suffer great financial losses!
Or at least not reach the desired result.
Now the question is how to find out the pH of the soil.
Soil pH measurement methods
The best and most accurate way to determine soil acidity is to test a sample in a soil laboratory.
These laboratories will determine the pH of the soil for you with high accuracy.
Home methods of measuring PH
On a small scale, planting ornamental and garden plants may not require soil testing in soil laboratories.
And measuring the pH of the soil in a home-based way can also greatly enhance people’s work.
Of course, many home remedies do not detect the pH, but only determine whether the soil is acidic or alkaline.
Among the home methods of determining acidity, the following can be mentioned.
Home kits or PH meters
Using these devices is the most accurate home method of detecting soil acidity.
PH meters are usually small devices that are very easy to use.
There are several models of them on the market, many of which have a pen-shaped tip that is inserted into the soil solution.
And they have a display that shows the pH number of the soil
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Use of identification papers
A variety of soil pH detection papers, including litmus paper and litmus paper, are available in the market.
Using identification papers is one of the fastest and most cost-effective ways to determine soil pH.
Which more or less accurately detect the pH of the soil.
The way to work with them is as follows:
You need to make a dilute solution of distilled water and soil whose acidity you want to find out.
Then put the identification paper in this solution for a few moments to get it wet.
Then you take out the paper and after a while the paper changes color.
By comparing the new color that appears on the paper with the color guide of the paper, we can understand the approximate pH of the soil.
Problems with soil acidity for plants
Soil acidity is a common agricultural problem.
If the soil is too acidic, plant growth in it will be difficult.
This is because the acidity of the soil changes the amount and concentration of soil nutrients, and this change is of two types:
1. Reduce soil nutrients
The results of studies show that if the soil is more acidic than usual,
Absorption of high-consumption and required plant elements, especially phosphorus, is greatly reduced.
This harms the growth of natural vegetation or the growth of crops on acidic soils.
2. Increase trace elements
If soil acidity is high, trace elements such as iron and aluminum in the soil will increase.
Although these elements are needed for plant growth, if their concentration in the soil becomes too high, their high absorption by plants will cause plant poisoning.
Factors affecting soil acidification
Due to the dissolution of various air elements in rainwater, these elements can change the pH of the soil and make it more acidic.
Mother rock and soil origin
Primary soil origin also affects soil acidity.
As you know, soil is made from weathering of mother rocks over hundreds and thousands of years.
And the material of the mother stones affects the soil from which it is made.
If the soil used for agriculture or greenhouse is brought from a forest environment, it is likely to be acidic.
Because the forest vegetation itself makes the soil more acidic.
And in these conditions, agricultural products may not perform well in this type of soil.