How to apply fertilizer through drips using a Venturi fertilizer injector - Grekkon Limited
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- เผยแพร่เมื่อ 7 ต.ค. 2021
- A venturi fertilizer injector is the most efficient way of applying fertilizers and chemicals (especially drenching chemicals) directly into the drip system. In this case, irrigation water is applied at the same time with fertilizer in a process known as fertigation or chemigation in the case of chemicals.
How a Venturi injector system works
A venturi injector system includes a bypass, pump and a suction assembly.
For the system to work, there has to be a pressure difference between the inlet and outlet to create a vacuum to initiate suction at the suction port.
Water moving into the injector system speeds up as it enters a constricted channel of the injector, causing a reduction of pressure.
The reduction in water pressure causes fertilizer to rise up through the suction assembly into the water channel.
The difference between the inlet side of the injector and the outlet is small, thus creating a small vacuum. The result is a suction being created.
Where the difference in pressure is sizeable, a larger vacuum is created, resulting in a larger suction.
Advantages of Grekkon Limited venturi Fertilizer Injectors
• Has uniform injection rate from start to finish
• You can regulate the rate of flow of fertilizer or chemical
• Venturi is very cost effective as there is no energy. Labour is also drastically reduced
• Quick and easy installation.
• Zero maintenance cost
Selecting a venturi injector system
When selecting a venturi injector, chose the best size and model that matches your drip irrigation system. Always select an injector that matches your irrigation system flow rate. Generally, small sized injector system will restrict flow of the system, while an oversized system will have difficulties drawing fertilizers into the irrigation system.
Venturi injector sizes.
Venturi injectors come in different sizes from ½’’ to 2’’. However, ½’’ and 3/4’’ are the most readily available.
Rule of thumb when installing venturi injector
The injector outlet must remain flooded for it to work effectively
Do not install the injector in a vertically downward position (outlet below inlet) as this will cause erratic suction by the injector.
For more information, read more here
grekkon.com/venturi-fertigati...
grekkon-eldoret.co.ke/venturi... - วิทยาศาสตร์และเทคโนโลยี
I highly recommend this gadget for applying fertilizer through the drip system. It's powerful and cheap. No electricity.
Thank you but how's the math to use kg /Litter
What are the considerations like what size is the Venturi? Is it a standard size
Selection of the size will depend on acreage being irrigated but generally ½" to 2"
How many plants did you fertilize and what is the measurement per gallon on the fertilizer and how often do you fertilize
Mine is back firing when the hose is too long 😢
Hello sir can we use. Di ammonium phosphate, murate of potash for ventury like urea? Or it cause clogging?
No for DAP, ok for MoP
@@grekkonlimited
Thank you 👍
Why my venturi system not working?
When i joint my drip main line They flow water in fertilizer tank instead of fertilizer sucking from tank and
When i removed main pipe its sucking fertilizer from tank.
Please explain what is my mistake
It may be upside down or the water pressure is lacking.
Is that urea? I never thought that urea can be applied as liquid
Hello Clement, yes that is Urea and it is a water soluble fertilizer.
@@grekkonlimited How much water should I use? Thank you
@@clementteron7180 There is no specific volume of water from your tank, you just need to have adequate to irrigate your land. But for the venturi, you can use a small tank, from as low as 20L
Nautamani huo mtambo wa mbolea naupataje
How do you calculate the amount of fertiliser to be used on a hector
It depends on the fertiliser type being applied
its depends upon your crop. and based on your crop you calculate the ppm values and based on number of plants you do the multiplacatin of required fertilizers.
Does it not cause clogging in the emitters?
Hello Anthony, it does not cause clogging. All you require is to use water soluble fertilizers.
How you calculate the rate of fertiliser that has to be put into the container? Should it be more concentrated than the manual application?
Read the article below for the calculations grekkon-eldoret.co.ke/venturi-injector/
Imenisadia kuelewa
Can all Granular Fertilizers like NPK 15:15:15 be applied using fertigation?
@@grekkonltdeldoret7710You have not answered the question.
Like now you are using DAP 46% Phosphate. Right?
How do you determine or calculate the quantity that goes into the tank loke here is one bucket shown?
Your link has not mentioned any of that other than how Venturi system works.
In my experience we have been using the E.C meter to set right E.c
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Full video
Please tell me you arent scooping calcium nitrate granules with your hands dude, you got brand new clogs clearly you can afford a proper scoop.