For the restoration of mineral compositiona fertile layer of soil after the growth of cultivated plants a number of methods are used. Leading is the introduction of fertilizers. This is done primarily to provide plants with three basic nutrients: nitrogen, potassium and phosphorus. In this regard, fertilization with superphosphate is highly effective.
Its introduction improves the root systemplants, supports or restores their healthy growth and development, slows down oxidative and strengthens the regenerative processes in soil and soil. The fertile layer is enriched with a sufficient amount of nitrogen and phosphorus, as well as potassium, calcium, magnesium and sulfur. A direct consequence of this is an increase in yields and an improvement in their quality.
Fertilizing superphosphate effectively with its owncomplex impact. Its main component is phosphorus, followed by nitrogen. For the neutralization of excessive acidity of the soil, calcium is responsible. Magnesium - an indispensable element in the cultivation of potatoes. Sulfur helps grow beans, grains and oilseeds.
By the way of production and the content of phosphoric acid, superphosphates are simple and double (sometimes triple). They are produced in a powdered and granular form.
Simple superphosphate contains from 14 to 19.5%phosphorus; in its double, respectively, twice as much. This is taken into account when fertilizing soil and plants. When carrying out a spring or autumn digging of a bed, 100-200 g of simple superphosphate per 1 sq.m. This fertilizer is also used for liquid top dressing: 12-25 g is dissolved in 10 liters of water and infused for two or three days.
The lack of simple superphosphate is a significantthe content of calcium sulphate (gypsum), reaching in its proportion up to 40%. In fact, for gardeners, gardeners and farmers it is a transport ballast. Although fertilization with superphosphate can sometimes be beneficial because of calcium sulphate, for example, in cases with soils, poor sulfur, and if there are plants that consume sulfur in large quantities. However, in most cases, gypsum remains a practically useless mineral for plants.
Superphosphate granular has an undeniableadvantage over fertilizer, produced in a fine fractional form. The fact is that powdered superphosphate in soil (especially if it is acidic) passes into a state in which all its nutrients are inaccessible to plants. And the more thoroughly it is mixed with the soil, the more it becomes useless. Superphosphate granules with a size of 1-4 mm are free from this drawback, and therefore the phosphoric acid contained in them is much better and more long-term is assimilated by plants. Fertilizer in this form has good physical properties: it does not cake and dissipates perfectly in the area.
Superfosphate fertilization is effectively usednot only directly for plants, but also as an additive to fresh bird droppings. This is done in order to bind ammonia nitrogen into nonvolatile forms in it and to avoid its losses during storage. One kilogram of superphosphate, added to the compost, retains approximately 400-500 g of nitrogen.</ p>