How to determine the acidity of the soil and bring it back to normal
One of the most important properties of soil is its acidity, which depends on the number of hydrogen ions in the soil composition and the presence of exchange of ions of aluminum and hydrogen in soil absorbing solution.
Every grower and gardener needs to determine the acidity of the soil at his beloved country and, if necessary, to bring it back to normal, as this will have a positive impact on the development of beneficial microorganisms, and most importantly plants.
Soil acidity is expressed in several degrees and is indicated by the pH value. The figure is on a scale of pH from 3.5 to 8.5 pH.
Strongly acidic soil — 3,5-4,0;Sour — 4,0-5,0;weak acid -5,0-6,0;Neutral -6,0-7,0;Alkaline — 7,0-8,0;strongly alkaline — 8,0-8,5.
To determine the acidity of the soil in several ways. For example, using a test paper which can be purchased in the Department of chemical. reagents.
To do this in different areas with different depths of the topsoil (0-35cm) gaining a total of about 1kg of land which is thoroughly mixed.
Then as a test sample, measure out 250g of the composition, moistened with distilled water. Then the indicator paper placed inside a soil clod.
After a while the indicator will acquire a certain shade that you want to compare with the scale of acidity.
The second method of determining soil pH is with the help of the device «Lemovskogo» which can also be found freely available in agricultural stores. The principle of operation is also based on the coloration of the indicator.
If your country grows many different types of weeds, you can use natural indicators of acidity of the soil.
In this case, it is worth considering that this method is approximate and to make the analysis of the earth it will turn around.
For example, grow on acid soils: wavelet, horsetail, creeping Buttercup and so on.
Most garden plants prefer close to neutral pH.
Artichoke, cauliflower, cabbages, beets, carrots, celery, onions, lettuce, parsley 7-7,5 pH.
Beans, garlic, eggplant, Kale, radish, Brussels sprouts, zucchini, turnips, salad beetroot, tomatoes, melons, cucumbers, horseradish, rhubarb, spinach and onions-chives, shallots, leeks 6,0-7,0 pH.
Pumpkin, sorrel, potatoes, parsnips of 5.0-6.0 pH.
In the case of the acidity is carried out liming of soils, and at high alkalinity, neutralization is achieved with the introduction of physiologically acidic fertilizers, which can be purchased in specialized stores. The quantity of additives specified in the regulations.
In slightly acidic soils make 200g lime per 1 sq. m., on acid – 450-500g, strongly acidic, add 600-700g.
Depending on soil indicators liming is carried out in the autumn of each year, or the year after.