Adjustable Button Drippers For Irrigation
1. What is a button drip emitter?
Adjustable button drippers for irrigation are irrigation accessories attached onto a high density polyethylene (HDPE) pipe. They deliver a consistent and uniform amount of water the crop by regulating the flow. Button drippers in Kenya, button drip are common in fruit trees, forestry and hedges irrigation
A macadamia crop under button drip irrigation installed by Grekkon Limited in Iten area, Elgeyo Marakwet county. January 2021
Same macadamia crop in January, 2023
2. How do you install button drippers?
A perforation is made on the HDPE pipe with a drip punch, then the button dripper’s pointed end is pushed into this hole. This punching is done at the point where the tree crop is. But it will be away from the trunk to ensure that water flows to the roots below. The button dripper will be 3-6 inches away from the trunk. This will also prevent fungal infections and other types of diseases.
For younger tree crops, a single button dripper or emitter is sufficient. However, with older larger trees, 2 or more button drippers are provided according to the plant’s water need. In this case, have them equally on the opposite sides of the tree crop to promote even root growth. Two or multiple button drippers ensure that if one is blocked, the other one or the rest continue to water
3. How do you use an adjustable button dripper?
Once in place on the irrigation line, you will adjust your button dripper from 0 discharge to 70 liters per hour flow of water. This is done by turning the dripper to achieve different flow rates as per the crop water needs
4. How long should button drippers run?
Your adjustable button drippers for irrigation will run for 30 minutes to an hour. This is guided by the moisture requirement of the soil, as per the prevailing weather conditions
5. How many button drippers can I run on one line?
This is determined by the diameter size of the irrigation pipe. The larger it is, the more water it ferries over a longer distance. Therefore, the greater the number of button drippers. The other factor is the flow rate of the adjustable button drippers themselves. If adjusted to maximum flow rate (70L per hour), then the line will have less. If the adjustment is to half of that flow rate, then a similar line will carry twice as much
6. How do I increase the pressure in my button drip irrigation system?
They are several ways to raise the irrigation water pressure in your button drip irrigation system
i. Divide the farm into blocks, each of which is irrigated separately. This way, irrigation water is channeled to particular block under high pressure
ii. If it is by gravity flow, then by raising the storage elevation. This will work where raised water tanks are the source of irrigation water
iii. By introducing an external source of pressure, such a s water pump to boost the flow of irrigation water in the system
Adjustable button drippers for irrigation price in Kenya
The cost of a button dripper is Kes 12 a unit
The cost of a button dripper irrigation system per acre depends on the tree crop spacing. In the tabulation below, we provide 3 examples
| Avocado | Passion / Paw Paw | Apple / Tree Tomato | ||
| Spacing | 5M x 5M | 3M x 3M | 2.5M x 2.5M | |
| Cost per Acre | Kes 85,000 | Kes 100,000 | Kes 115,00 | |
Pixie Orange Farming And Irrigation
Pixie orange farming and irrigation in Kenya is a high investment, high returns farming venture. Pixies originate from California, USA where they were developed as a cross between oranges and tangerines. They are yellow-orange in colour, sweet and seedless fruits rich in vitamin C. They boost the immune system and increase collagen production which is great for the skin. In this piece, we answer commonly asked questions on pixie orange farming and irrigation by growers in Africa
1.How do you grow pixie oranges in Kenya?
They grow in most soils, but the best are deep (at least 18 inches or 42 cm deep) fertile sandy loams with a pH range of 6.5 – 7.3
Ripe pixie oranges on a tree
2. How do you plant pixie oranges?
The dimensions of the planting holes are 2ft x 2ft x 2ft. This allows for water conservation and deep root penetration as the tree grows. mix the top soil thoroughly with well decomposed manure especially in weak soils
3. What is the spacing for pixies?
Row to row 5M, plant to plant 4M to give an average population of 200 plants per acre. A mature full-sized tree tree is 6M – 9M tall, and equally wide with an extensive root system
A mature well spaced pixie orange crop
4. How long do pixie oranges take to grow out?
Pixie oranges take 2 years to their first fruiting season, but full maturity is between 3 -5 years
4. How many oranges will one tree produce?
The first fruits (30 – 50 fruits) come in the second year, then 250 -300 in the third to fifth years. By the eighth year, the tree bears 500 -600 fruits annually. To produce this commercial quantity all year round, irrigation must be undertaken
5. How many pixie orange trees per acre?
200 trees on average
How To Irrigate Pixie Oranges In Kenya
Pixie oranges require a high amount of water to grow because they are ever green. Under rain fed production, it will be at least 1,000mm of rain annually. However, to produce commercially, irrigation will be done to supplement rain. A tree will have 20 litres at planting, and thereafter, ensure that the soil is consistently moist, but not soggy. The root system must not be allowed to dry out, and neither should there be standing water. Irrigation is at the root zone, away from the trunk
Pixie Orange Farming And Irrigation
Methods
I. Sprinkler Irrigation
Micro sprinklers at the base of the plant are the most efficient or all overhead irrigation methods. Micro sprinklers are low-pressure, low to medium volume irrigation equipment that deliver water directly to the crop root zone. They provide full scale surface irrigation, and localised watering of trees
Micro sprinklers installed by Grekkon Limited in an orchard
II. Button drippers
This is the most water conserving and efficient irrigation system. The water loss to evaporation is less than that of micro-sprinklers, and it requires lower pressure to operate
A button drippers system installed by Grekkon Limited at work in a newly established fruit farm