rrigation pumps are normally used to pump water from a decrease to a better level from which the water then flows via channels to the fields requiring irrigation or to raise it to the required pressure head in order to spray the fields by way of piping methods (sprinkling). The heads concerned range from approx. 1 m for regular raise operation to forty m for sprinkling. Ocassionally, heads more than 100 m could also be required.
At occasions, irrigation pumps are usually not outfitted with variable velocity drives. The circulate fee can due to this fact be controlled by both switching the pumps on and off, or by using a throttling valve in the discharge pipe, pre-swirl control (e. g. cooling water pumps), rotational pace or impeller blade pitch adjustment. Both horizontal and vertical pumps (e. g. tubular casing pump) are used as irrigation pumps.
For more than 2,000 years farmers have used irrigation to develop food for the world. However, this does not mean that each one irrigation methods are equally helpful. Knowing what will work best in your scenario requires knowledge concerning the options available, including the advantages and drawbacks of each. With that in thoughts, here’s a look at 5 issues to consider in getting water to your crops:
1. Soil kind. The kind of soil in an area can have an result on not only the type of irrigation technique used but in addition the irrigation run times. Sandy soils usually require frequent purposes of water at a high fee to keep moisture within the root zone. Clay soils has a attribute of holding moisture longer that sandy soils, even so, this may require frequent purposes at a lower price to prevent runoff.
2. Land topography. When it comes to land issues, hilly or sloping land can be a problem. Drip irrigation works nicely if the laterals could be run along topographic strains. Often system run times might have to be adjusted to forestall runoff. Travelers and center pivot techniques are often out of the question on hilly and severely sloping land.
three. Local weather patterns. In this case, sprinklers are much less desirable in areas the place excessive winds are frequent and in arid areas with a low humidity since water losses due to evaporation could be extraordinarily high. Drip irrigation works nicely for both of the above talked about conditions.
4. เกจวัดความดันแก๊ส of crops grown. Sprinkler and drip methods can require excessive levels of investment. Therefore, it’s higher to order their use for high-value crops like vegetables, small fruits and orchard crops somewhat than making use of them to commodity crops like wheat and soybeans.
5. Water high quality. All drip irrigation systems require some kind of filtration. Overhead methods corresponding to sprinklers seldom require filtration. Irrigation water should be tested for water borne pathogens. Depending on the crop grown and irrigation technique used chlorine injection could additionally be required. Other water quality issues that could presumably be of concern embody ranges of soluble iron and other dissolved minerals.
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