Quarter-acre drip irrigation kits price depends on the crop type. In Kenya, the cost of quarter-acre drip irrigation for; one drip row per bed, two drip rows, and three drip rows per bed varies significantly. The drip irrigation system price by Grekkon Limited is as per the farmer’s crop choice. The planting beds width is according to crop type. 0.8M wide beds are for 1 and 2 drip row crops. 1M wide beds are for 3 row drip crops
16mm pipe with emitter spacing of either 15cm, 20cm or 30cm. This is what waters the crop, and is the last pipe installed. It is also the smallest in diameter
This is a PVC or HDPE pipe. It delivers the water to the farm either through the sub-main line or to the drip irrigation pipe. The main line is connected to the water source, and is the first line installed. It has the largest diameter of all pipes
It is connected to the main line and receives water from it for delivery to the drip pipes. It has a smaller diameter than the main line, but larger than the drip pipe. The reason why it’s diameter is smaller than the main line is to sustain the water pressure. If it is of the same size or larger than the main line, then water pressure is lost, and irrigation is poor
This is a screen filter for gravity flow, and a disc or sand filter for high pressure flow. The sand filter works well with very dirty water
They lock the end of the drip pipe, keeping the water in the pipe
They are installed between the main line or sub-mainline and the drip line to prevent water leakage
They connect the drip line to the main or sub-main line
They connect 2 drip lines watering in opposite directions to the same water source
They change the direction of the drip pipe
The former are directly connected to the drip pipe, the latter to the main and sub main line. These control the flow of water in the pipes
Where fertigation (application of soluble fertiliser through the irrigation system) or pesticides drenching (application of agro-chemicals directly to the soil for uptake via the root system) as to be carried out. Our venturi injectors have inlet sizes of 1″, 3/4″ and 1/2′. The wider the diameter, the greater the flow rate. The choice of the venturi injector to have depends on the acreage. Larger acreages will have the larger size, and smaller farms the lesser ones. A venturi injector is either a manually operated system or automated
The number of drip rows per bed remain the same whether the crop is established in the open field, or in a greenhouse.
During installation, we divide the farm into irrigation blocks according the the water volume, and water pressure available. The farmer will irrigate a block or two at a time for 20 to 40 minutes. This is depending on the crop water need.
For gravity flow, we run them to a maximum of 25M. For water pump driven water, this extends to 40M per block. This is to ensure that there is sufficient water along the line for the crop
Drip irrigation is the most water efficient irrigation method. The amount of water the crop needs per day on average per quarter acre is 2,000 litres. A farmer will irrigate according to the depletion rate to maintain this volume in the soil
As the leading drip irrigation kits supplier in Kenya, our technical team advises growers on crop drip irrigation management. We provide irrigation schedules for every crop, an carry out physical site visits to engage our farmers on the ground. Beyond drip irrigation, our farmers benefit from free agronomy advice by our company agronomists across the country
The amount of drip tape on 1 acre depends on the crop. It is
i. 2 rolls or 2,000 meters for all crops that have 3 drip lines per bed, such as; onion, garlic, French beans, strawberry, herbs, spices, and some ornamental flowers
ii. 1.5 rolls or 1,500 meters for two drip lines per row crop. These are; tomato, potato, capsicums, peppers, cabbage, kales, spinach, collards, and traditional vegetables
iii. 1 roll or 1,000 meters for a single drip row per bed crops such as water melon, and butternut
This is answered in number (4.) above
For main lines and sub-main lines, HDPE or PVC pipes are fine to supply water to the 16mm diameter drip lines. The size of the HDPE or PVC main lines depends on the acreage. The larger it is, the greater the pipes diameter so as to carry more water to the drip lines
Yes if the emitters are specially designed for sub-surface drip irrigation. The width and emitters are different from the normal common surface drip tapes. We supply sub surface drip irrigation pipes on order from Kes 25/M
Sub-surface drip irrigation in maize pictorial
9.1. Surface drip irrigation which is the most common method of drip irrigation, and less costly. The drip line is laid on the soil surface, next to or near the plants’ base. There is water loss via evaporation, and it is easily damage during mechanical field activities, degrades faster from solar radiation and is prone to theft
9.2. Sub-surface drip irrigation. This drip line is buried under the soil to provide water from below. It requires a special drip pipe, and emitter. It is more expensive and requires a higher level of technical skill to install. The key advantage is that zero water is lost to evaporation, less prone to mechanical and solar damage, and the system is not exposed to theft
It depends on the water pressure, but on average 30 emitters
A quarter of an acre requires 4,000 liters on average per drip irrigation session. To arrive at this, we consider; the total length of drip irrigation pipes installed, the emitter spacing, discharge rate of the emitter, and length of irrigation.
For instance: If a quarter acre has 2,000 meters of drip tape with an emitter spacing 15cm, has 1,667 emitters. If each emitter discharges 1.5 litres per hour, then in one hour, the farm will have received 2,500 litres in one hour
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