Once, in 1669, a kind of alchemist H.Brandt made the following experiment: he urine evaporated to dryness, the resulting precipitate was mixed with sand and charcoal, and then the mixture was heated in a closed retort.As a result, he received a substance that possess magical properties of light in the darkness.Since phosphorus was first obtained.Since then, it took more than three hundred years, now this chemical element widely used in various fields of industry and agriculture.Let's talk about what can give at their summer cottage use of superphosphate and the different varieties of it.Hopefully this article will be very informative for all people who are engaged in the cultivation of crops in your garden.
fertilizer with the prefix "super»
popularity of this matter due to the fact that it is, first of all, is non-toxic, resistant to fire and explosion, and secondly, is suitable for almost any type of soil.Application of superphosphate produces very high yields of maize, beet, potato, flax, vegetables, cereals and other crops.Moreover, experts recommend for good results combine the use of the substance as part of the basic fertilizing with a small amount into the wells or rows directly in front of the sowing.You may have already emerged by this time the question of how much you need to make this fertilizer.It should be noted that the application of superphosphate depends on the level of soil fertility, the use of organic additives and from crops.Moreover, one should consider kind of fertilizer used.For example, for vegetable crops average dose is 40-60 (when available is a simple) or 20-30 grams per 1 m2 (if you plan to use triple superphosphate).The use of this fertilizer is recommended in areas where the yield depends on the content of sulfur in the soil, which plays an important role in the cultivation of oilseed, cereals and legumes.Superphosphate make better in rows - in this case, the utilization of phosphorus is several times higher in comparison with randomly before plowing.At the same time abuse the data of the fertilizer is not necessary.Especially when you consider that in 2-3 years the coefficient of assimilation of phosphorus in superphosphate is approximately 40%.
composition and species
addition to its main component, this fertilizer contains nitrogen, sulfur, magnesium and calcium.Depending on the percentage of digestible with / crop phosphorus is simple superphosphate, a double and enriched.Last on the structure occupies an intermediate position between the first two.To date, this fertilizer can be purchased as a powder or in granular form.In the first case, the application of superphosphate cost consumers significantly cheaper.Because of its easy mixing this kind of fertilizer is best for the preparation of composts.On the other hand, a powder preparation, in certain cases, brings less benefit than granulated superphosphate.Applying the latest to avoid caking, keep up the good dissipated, and phosphorus it contains more (up to 22%).
