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Земляника на гидропонике Земляника в теплице Восьмерочка. Комплект капельного орошения
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PRACTICAL FERTIGATION PRACTICAL FERTIGATION

PRACTICAL FERTIGATION

FERTIGATION ( fertigation ) - is a way of fertilizer plants by supplying dissolved fertilizer with irrigation water.
This technology is widely used among farmers around the world in the late 1970s. The use of fertigation was a natural and effective step in the development of agriculture, and developed techniques and methods of fertilizer application to power plants allowed to successfully apply this system in irrigated areas , using existing irrigation equipment .

Fertigation in hydroponics.
Hydroponic technology based on the use of neutral organic or mineral substrates not containing nutrients and, in some cases, for example when running hydroponic substrate is completely absent . How in these conditions provide power plants? There is only one way - to ensure podachupitatelnyh minerals simultaneously with irrigation. We use a special mortar units - units or blocks of fertigation .
Technology Industry hydroponics have been developed over 30 years ago and is widely spread in different countries, but only in the large greenhouse complexes. The reason for the use of such systems mainly on large farms was the fact that the cost of equipment for fertigation units has been and remains quite high. Despite the long-term use in hydroponics fertigation systems , the cost of the equipment has not declined , but the actual equipment itself has not changed much in its design .

Our company always pays attention to introduction of modern technology to small and medium enterprises. Often interested in our equipment and those for whom the cultivation of plants is just a hobby . But unfortunately, many people can not be ordered traditional equipment for fertigation because of its high cost.
We have set ourselves the task to develop a reliable, efficient, simple and inexpensive system for fertigation farms of different sizes. Our fertigation units operating successfully in small amateur hydroponics installations and large-scale farms , and not only in greenhouses, but also in large areas of open ground . The basic working of our body systems, fertigation is proportional dosing pump MixRite which provides precise , proportional addition of fertilizers in irrigation water and works without additional sources of energy, which dramatically simplifies the system and increase its reliability.

BASIC PARAMETERS UNITS fertigation

In each case , for given conditions of fertigation , you must take into account several important parameters :

  • The maximum and minimum flow of the nutrient solution at a time.
  • The amount of nutrients added to the nutrient solution.
  • The need to adjust the acidity of the nutrient solution .

With these settings, you can configure the system correctly fertigation virtually any requirements for such systems.
Additionally , it is possible to take into account the factor which will be operated by fertigation system , such as in a greenhouse or outdoors in farmers' fields .

Water consumption:
Proportional dosing pumps manufactured MixRite bandwidth from 1.0 to 25.0 cubic meters of water per hour. Using these pumps, the order, our company manufactures components fertigation capacity from 1.0 to 125.0 cubic meters of water for maximum throughput. Digital from 1.0 to 125.0 cubic meters, displays the maximum flow of water through the assembly fertigation , but these nodes are in a very wide range of flow rates while maintaining accurate proportional dosage of nutrients.
For example fertigation unit designed for a maximum flow rate of 2.5 cu.m . / Hr , has a range of from 30 to 2500 liters per hour , while maintaining the exact proportions fertilizer dosages .

The number of components of a fertilizer mixture :
For each area of application nodes fertigation needs diffirentsirovanny approach . If a node is used to feed plants in the ground, in some cases quite fertigation unit consisting of one dosing pump . Typically , it is served by complex fertilizers for the overall plant nutrition . Since the plants are grown in open ground, allowed some variation in the nutrient solutions , because the soil has a large enough buffer properties and through fertigation system for open ground can be different types of fertilizers to file periodically , such as a few days of feeding is one type of fertilizer , and the next few days - to others . This is certainly not the best way to fertigation , but egog soil can be considered acceptable. If we apply multiple dosing pumps , then we have a full opportunity to fully balanced fertigation and plant nutrition . This is particularly important when it is necessary to adjust and change the composition of fertilizers relative content of individual nutrients. For various phases of plant development is quite important indicator since plants need to supply the various elements and their proportion varies depending on their development phase , and the external environment .

The acidity of the nutrient solution :
The acidity of the nutrient solution largely affects plant growth and development , as the acidity of water, soil or substrate depends plant nutrient digestibility , since some types of fertilizer to pass trudnousvoyaemye plant forms . Usually , the optimal level of acidity of the water and soil is considered an indicator Ph = 5,0-6,0 units, but very often , the water used for irrigation, has an alkaline reaction in the range of 6.0 to 8.0. Such water with an alkaline reaction takes many kinds of nutrients in forms that are not readily available to plants . Moreover, such a negative effect on water irrigation system components as contained therein calcium salts are deposited as solids on the pipes and irrigation elements overflow - or dropper to the outlets sprinklers. These deposits gradually clog the outlet structures and irrigation system fails.
To acidify the nutrient solution used specialized acid dosing pumps that accurately balance the nutrient solution is fed to irrigate plants. This allows the plants to create the most favorable conditions for their development, significant cost savings udoreny and incidentally , keeps your sprinkler system in working order for many years.

Especially fertigation for hydroponics :
Hydroponic technologies require a more thorough approach to applied fertigation systems . Neutral , Low-volume substrates do not contain the nutrients and because of the limited volume have a low coefficient of buffering , that is, they almost do not accumulate and are not stored nutrients. In this regard, the feed solution should comprise the whole range of nutrients required for the growth and development of plants. Since the plants for their full-scale development requires about a dozen chemical elements , this is not possible , that would serve all of these types of fertilizers with the help of one of the metering pump . Node for hydroponics fertigation must have a minimum of 2 dosing pump for supplying different kinds of fertilizer , plus a third pump - acid to balance the acidity of the nutrient solution is going to the plants .

CLASSIFICATION OF UNITS fertigation

Nodes fertigation produced by our company are divided into two types : serial and parallel . They differ in how inclusion in the metering pumps . It depends on the specific technological requirements for fertigation system , the number of components added to the nutrient solution and the total required capacity of the system of irrigation.

Fertimix-3

Простой последовательный блок фертигации для гидропоники. 3 последовательных насоса-дозатора. Производительность до 2,5 куб.м. в час.

Fertimix-1-1

Одиночный насос-дозатор для маленькой теплицы или дачного участка. Производительность до 1,0 куб.м. в час.

Fertimix-33

Параллельная система фертигации для больших площадей открытого грунта. Производительность до 33,0 куб.м. в час.

Как рассчитать необходимую производительность системы фертигации:

Расчет производительности узла фертигации определяется водопотреблением орошаемого участка.
Водопотребление зависит от применяемых для орошения поливных систем. Например, вам нужно орошать свое фермерское поле. На поле площадью 1 гектар проложены капельные трубки. Трубки проложены через каждые 80 см., что составляет 125 трубок, при размерах участка 100х100 метров. Общая протяженность капельных линий составляет 12500 метров. Расстояние между капельницами равно 33 см. Общее количество капельниц на всей орошаемой площади составит: 12500х3=37500 капельниц. При расходе воды через 1 капельницу к примеру 1,6 лтра в час, общее водопотребление составит: 37500х1,6=60000, то есть 60 кубических метров в час.
Таким образом, вам будет нужна система фертигации соответствующей производительности. Но такая система стоит достаточно дорого. Как удешевить проект?
Задачу можно решить несколькими способами. Например, использовать капельную трубку с более низким расходом воды через капельницы. Если применим капельную трубку с расходом воды через капельницы равным 0,8 литра в час, мы сможем снизить часовой расход воды вдвое и тогда нам потребуется узел фертигации производительностью 30 куб.м. в час.
Есть еще один способ снижения часового расхода воды - разбить орошаемый участок на несколько зон орошения. Например на 4, 6 или 8 зон орошения, которые будут поливаться последовательно. В этом случае производительность узла фертигации так же снизится. Снизится во столько раз, на сколько зон орошения вы разбили ваш участок. Просто время полива пропорционально увеличится, так как все орошаемые зоны нужно будет полить одну за другой.

Аналогичным образом рассчитывается и блок фертигации для орошения теплиц.

Будьте внимательны и скрупулезны при расчетах вашей системы орошения. Все компоненты и составные части вашей системы должны быть точно рассчитаны и соответствовать общим параметрам потребления воды в единицу времени.
Система орошения включает в себя насос для подачи воды, фильтр, узел фертигации второй фильтр тонкой очистки, который устанавливается после блока фертигации, и при разбивке на несколько зон орошения необходимо предусмотреть систему автоматики, которая будет автоматически распределять воду по зонам орошения.

Для контроля состава и параметров воды подаваемой на орошение, необходимо применять специальные приборы. Измеритель ЕС - для контроля общего количества солей в воде и Ph-метр для контроля кислотности.

This article was published on 15 September 2013.
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