Fertilizer potassium magnesium: application and impact on various crops

Fertilization features

Kalimagnesia refers to concentrated mineral fertilizers. It consists of the elements necessary for all vegetable and garden plants: potassium - 30%; sulfur - 17%; magnesium - 10%.

The inevitable chlorine content is minimal - 1%, some options contain up to 3%, which allows you to consider this nutrient mixture as chlorine-free. Fertilizer is produced in the form of a light powder or irregularly shaped granules of a grayish, sometimes pinkish tint. It dissolves easily with water, leaving some sediment. Its characteristic feature: the simultaneous introduction of two necessary elements - potassium with magnesium, their use separately is not so effective, because they are unevenly distributed in the soil. During the decomposition of the main active substance of potassium magnesium, ions of two types are formed: positively charged potassium ions and negatively charged sulfur ions (sulfate ions). Sulfur compounds are easily absorbed by the soil.

Potassium ions do this in an exchange or non-exchange way. Potassium, absorbed in a non-exchangeable way, cannot easily penetrate into the root system of the plant, but on clay soils it is helped by the minerals hydromica and montmorillonite by accumulating chemical elements. The mineral, which has penetrated into the soil by the exchange method, lingers there for a long time, it is easily consumed by the roots of plants. Powder and fine-crystalline fertilizer contains more potassium, absorbed in a non-exchangeable way, which means that it is advisable to use it on loamy soils. On soils devoid of clay minerals, it is more advantageous to use large granules.

Application methods

Kalimagnesia is applied to the soil throughout the cultivated area, and dissolved in water as often as dry. It is poured (or poured) directly under the roots during planting or watering. Its aqueous solution is even sprayed with the green mass of plants during the growth period. The use of this fertilizer is universal - which is very convenient. Its use is indicated for open ground, as well as for greenhouses.

The application is calculated approximately like this: 5 kg per 1 hundred square meters. For fruit trees, shrubs, 20-30 g / m2 is enough. For vegetables - 15 - 20 g / m2, root crops - 20 - 25 g / m2. Moreover, turnips, radishes, carrots, potatoes, beets need it the most, they are recommended to apply from 30 to 40 g / m2.

Video "Description of potassium magnesium"

Learn how to use this potassium magnesium fertilizer in this video.

What impact it has on cultures

Potassium, magnesium, sulfur - this is an excellent combination of trace elements necessary to improve the quality and healthiness of the fruit. So the use of potassium magnesium causes an increase in the amount of starch in potatoes, sugar in beets, vitamin C - in citrus fruits, grapes, increases the concentration of vitamins in green vegetables. There will be more sugars in the fruits of garden trees.In addition, fertilization helps to increase yields, prolongs the period of fruiting, makes plants stronger in opposing diseases, and helps to endure severe winter frosts more easily.

How does it affect the soil

Kalimagnesia enriches the soil with microelements necessary for agricultural crops. Root crops (potatoes, sugar beets, others) during their growing season absorb a lot of potassium from the soil, so potatoes are able to "take out" up to 2.5 kg of this element from a hundred square meters of land. So the cultivated land is in dire need of replenishment with potassium, magnesium, sulfur, and organic fertilizers such as manure or compost do not provide the required amount. Therefore, it is so important for the soil to introduce complex organic and inorganic fertilizing.

Soddy-podzolic soils lack potassium and magnesium, peat, floodplain and red soils feel an obvious lack of potassium and sulfur, therefore, on such types of soils, the use of this particular fertilizer will have the greatest effect. For gray forest and loamy sod-podzolic soils, as well as depleted leached chernozems, potassium magnesium is recommended only in the case of a shortage of potassium and magnesium - and this may not be the case. It is important here which crops have been growing in one place for several years. On chernozems, gray and chestnut soils, its use can be effective only for some crops, for example, for sunflowers, sugar beets, green vegetables, the same potatoes.

Fertilization timing

Fertilizer is applied in spring or autumn during the general digging of the site. On clayey soils, it is better to do this in the fall, and on lighter soils, it can be done in the spring, and do not embed it deeply, since potassium is inactive, it is placed immediately in the desired soil horizon. This is about the general fertilization of the land. And during the planting of trees, bushes, seedlings of vegetables, many practice feeding under the roots. A good result is given by irrigation with dissolved fertilizer throughout the summer. Many summer residents practice spraying with a solution of green mass of plants.

Video "Natural radioactivity of potassium magnesium"

This video shows the natural radioactivity of potassium magnesium.