Fertilizers Part 3

2024 Author: Gavin MacAdam | [email protected]. Last modified: 2023-12-16 13:38

Photo: A. Singkham / Rusmediabank.ru

We continue to discuss the types of fertilizers and the features of their use.

Part 1.

Part 2.

Bacterial fertilizers are aimed at increasing the fertile properties of the soil. In addition, such fertilizers will convert nitrogen into a form acceptable for plants.

Bacterial fertilizers include azotobacterin, nitragin, phosphorobacterin and some other types. Nitragin is a mixture of bacteria that live in the roots of legumes, all of which have the ability to absorb nitrogen from the air. Such a preparation should be dissolved in water before it is to be applied to the soil. In the solution that will turn out in this case, the seeds should be moistened.

As for phosphorobacterin, it is bacterial spores that will be mixed with kaolin. Such fertilizer will have the ability to release phosphorus from organic compounds.

Azotobacterin is a fertilizer that is produced from the so-called soil microorganisms. These elements will assimilate nitrogen from the air, simultaneously converting it into compounds that are more useful for plants. This product is recommended for use only with moist soils. In addition, such preparations will contain those microorganisms that are capable of decomposing organic substances and releasing ammonia from them.

Microfertilizers are a separate type of fertilizer. Such preparations will contain elements useful for plants, such as: iron, manganese, copper, boron, zinc, molybdenum and many others. Such elements are very effective in combating fungal diseases. Such fertilizers should be applied to the soil in very limited quantities. The most common preparations from this type of fertilizer are iron vitriol, boric and manganese fertilizers. Microfertilizers will be used for spraying both trees and shrubs.

Very often, vegetable plants lack very important trace elements in the soil: for example, boron, copper and molybdenum. These elements are most important for beets and cauliflowers. In such situations, cauliflower seeds should be treated for five to six hours with boric acid, potassium permanganate and molybdenum. These elements should be taken in the following quantities: 0.3 g / l, 0.5 g / l, 1 g / l. In addition, such fertilizers can be applied to the soil in the form of special preparations that are available for sale. Such fertilizers will also contain copper, nitrogen and potassium.

It should be noted that not all fertilizers can be mixed before applying to the soil. Therefore, the best way out of this situation is to introduce them separately.

Over time, many gardeners begin to determine, already by the appearance of plants, those elements that are lacking in the soil. Let's try to figure out how to do this. If the plants lack nitrogen, then the leaves of such a plant will be small in size, pale green in color, over time they will turn yellow, and then completely fall off.

Lack of phosphorus can be determined by the color of the leaves: they will be dark green or bluish with a red tint. The leaves will dry out and turn almost black.

If the plants do not have enough potassium, then the edges of the leaves will begin to turn yellow and die off over time. The leaves themselves will wrinkle and begin to curl downward.

If plants need more calcium, the roots and apical buds will be damaged, and over time they will die altogether.

With a lack of magnesium in the soil, the leaves will begin to take on lighter shades. At the edges, such leaves will turn yellow, turn red, or acquire a purple color. This color change is observed not only at the edges, but also between the veins of the leaves.

If the plants need iron, the leaves will turn pale green and the tissues will begin to die off. Between the veins, lightening will also become noticeable, which is called chlorosis.

When there is a lack of copper, the tips of the leaves will first begin to turn white, and over time, chlorosis will appear. If more boron is needed, then the leaves will fall off, flowering will not occur, and the roots and apical buds will die off.