chemical fertilizers

August 12, 2017 17:52 | General Information About Plants

Mineral fertilizers are produced by the chemical industry and have an artificial origin, so they are sometimes also called artificial or chemical fertilizers.From organic fertilizers they have a high concentration of nutrients, and although in recent years there are more and more powerful trend towards the use of natural fertilizers, mineral fertilizers, in some cases, are indispensable.If you use them purposefully in small amounts and watch at the same time the level of nutrients in the soil, they can not cause significant damage to your garden environment.Depending on the composition of mineral fertilizers are divided into simple or sided, complex or complex and micronutrient fertilizers, containing trace elements used by plants in limited quantities, but nevertheless necessary for their development.

Simple mineral fertilizers vary in active ingredients. The active substance is called the number of the main nutrient in fertilizer.Thus, simple fertilizers can be divided for nitrogen, phosphoru

s and potash.

nitrogen mineral fertilizers accelerate the growth of leaves and other vegetative parts of plants, help build green leaf mass.

Urea (carbamide) - one of the most consumed growers fertilizer contains up to 46 % nitrogen, very hygroscopic, readily soluble in water and in the soil, quickly absorbed by plants, it is preferable to acquire a granular form of fertilizer, since itnon-caking.Contribute as a basic fertilizer for spring digging the soil and as foliar feeding: in the autumn, a solution with a concentration of 4-5 %, spring - 1 %. Urea has a tendency to over-acidification of the soil, so the need to neutralize the lime fertilizer at the rate of 800 g per 1 kg of lime fertilizer. Ammonium nitrate (ammonium nitrate, ammonium nitrate) is the main nitrogen fertilizer contains 35% nitrogen, is very hygroscopic, readily soluble in water and soil, and quickly absorbed by plants, most often it comes in granular form.Ammonium nitrate is applied to the soil as the basic fertilizer and use it as a dressing, to make a better spring for soil digging and plug the rake.When making ammonium nitrate by neutralization of acidic soils need fertilizer using hydrated lime at the rate of 700 g per 1 kg of lime fertilizer.

Plants fundamentally different ways absorb organic and mineral fertilizers: organic pass the stage of decomposition and complex metabolism before take mineral form available to plants, while the mineral dissolves in water, immediately get into the plant's disposal.Organic fertilizers are valued for their long-term integrated action, improving soil quality, mineral - for the performance

sodium nitrate (sodium nitrate, sodium nitrate) contains up to 16,5 % nitrogen and up to 26 % sodium , hygroscopic, readily soluble in water and in the soil at a sufficient level of humidity, caking during storage.Sodium nitrate is an alkaline fertilizer, so it is recommended for use in acidic soils.Is introduced as a primary fertilizer under spring soil treatment rate of 50 g / m2, is used as a dry feeding rate of 20 g / m2 or liquid fertilizing, wherein the solution is prepared in a proportion of 20 g / L and is designed for application to an area of ​​1 m.It is recommended to use sodium nitrate mixed with superphosphate, may be made by all the vegetables.

Calcium nitrate (calcium nitrate) contains up to 17% of nitrogen fertilizer is alkaline, so the most effective in acidic soils, very hygroscopic, very soluble in water and soil, quickly absorbed by plants.Calcium nitrate is produced in granular form and has a property cake, it must therefore be stored in a sealed package.Good results are obtained by the use of calcium nitrate as a liquid feeding, the solution is prepared in a ratio of 100 g of ammonium nitrate in the water bucket, this amount is sufficient to feed 1m landings.

Ammonium sulphate (ammonium sulfate) is a valuable nitrogen fertilizer contains 21% nitrogen, it is preferred to use on soils with neutral or alkaline reaction, is less effective - in acidic soils.It is readily soluble and bound in the soil at a normal level of humidity, poorly washed out with water from the soil, so it is recommended to use even on the lands with a certain degree of excess moisture.When storing ammonium sulfate caking.When using ammonium sulphate in acidic soils can not prevent them from further acidification, so acidic soil before applying fertilizers or lime must first neutralize the effect of hydrated lime fertilizer at the rate of 1 kg of lime per 1 kg of ammonium sulfate.

Phosphate fertilizers accelerate the maturation of the crop due to the property of phosphorous to reduce the growing season, the plants are necessary for the normal development of the root system.

superphosphate contains up to 21% of phosphorus, good soluble in water and in the soil, suitable for all types of soils as the main fertilizer and as a top dressing at the rate of 20 g / m2.It can be used to fertilize all kinds of vegetables, it contains in its composition of gypsum, which is a source of sulfur for those in need of cultures.Well-proven application of superphosphate in the furrows at sowing seeds. Double superphosphate contains up to 50% phosphoric acid (P2O5) in the form available for assimilation by plants.It does not plaster in its composition and is used similarly superphosphate.

precipitate contains up to 40 % phosphoric acid (P2O5) in the form available for assimilation by plants.The precipitate tends to alkalize the soil, reducing its acidity, and can be made for all types of crops. Phosphate powder (ground phosphorite) is sparingly soluble form of phosphate fertilizers, contains up to 20 % phosphoric acid (P2O5) in plant-available form.Works well in acidic soils, the effect of rock phosphate can be enhanced when combined with acidic nitrogen and potassium fertilizers, it is not recommended to be mixed with alkaline fertilizers.Effectively adding phosphate fertilizer in the compost, increasing their value.It has prolonged effect.

Potassium fertilizers increase the resistance of plants to adverse weather factors that make them more cold-tolerant, resistant to extreme lack of moisture and activate the resistance of plants to disease.

potassium sulphate (potassium sulfate) is considered the best of potash fertilizer contains 45% potassium and has no chlorine in its composition, is readily soluble in water.Potassium sulfate is used as a base fertilizer and the soil is brought by the spring processing can be applied as a top dressing. Potash is a major potash fertilizer contains up to 63 % potassium.Chlorine is highly soluble in water and is supplied to the soil in exchange, plant-available form, successfully digested by soil and plants.Potassium chloride has a tendency to over-acidified soil, so the acid soils before making this fertilizer is recommended to liming.Suitable for all types of soil.Potassium chloride extended storage strongly caking.Potassium-magnesium (magnesium potassium sulphate) contains up to 30 % potassium, a small amount of chlorine, magnesium and sulfur.Highly soluble in water and absorbed by the soil and plants is used as a base fertilizer and fertilizing.Best results are obtained by the use of Potassium-magnesium on light soils are deficient in magnesium. Potash contain up to 40 % potassium and much more chlorine than listed chlorinated potassium fertilizers - potash and Potassium-magnesium.Potassium salts are potent potassium fertilizers and suitable for all vegetable crops.However, we must carefully apply them to such chlorine sensitive crops such as tomatoes, cucumbers, potatoes, for which potash is recommended to apply for fall tillage, and at other times use very limited.

also used such potassium fertilizers as ground sulvinit (22% K), kainite (11% K), carnallite (13 % K), potash (55 % K).