rrigation pumps are usually used to pump water from a lower to a higher stage from which the water then flows via channels to the fields requiring irrigation or to lift it to the required strain head so as to spray the fields through piping systems (sprinkling). The heads involved range from approx. 1 m for regular lift operation to 40 m for sprinkling. Ocassionally, heads more than one hundred m could additionally be required.
At times, irrigation pumps are often not geared up with variable velocity drives. The flow price can subsequently be managed by both switching the pumps on and off, or through the use of a throttling valve in the discharge pipe, pre-swirl management (e. g. cooling water pumps), rotational speed 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 grow meals for the world. However, this doesn’t imply that each one irrigation strategies are equally helpful. Knowing what will work greatest in your state of affairs requires information concerning the choices out there, together with the advantages and disadvantages of every. With that in thoughts, here’s a look at 5 issues to consider in getting water to your crops:
1. Soil sort. The sort of soil in an space can affect not solely the sort of irrigation technique used but in addition the irrigation run instances. Sandy soils typically require frequent functions of water at a high fee to keep moisture in the root zone. Clay soils has a characteristic of holding moisture longer that sandy soils, even so, this may require frequent applications at a decrease fee to prevent runoff.
2. Land topography. When it involves land considerations, hilly or sloping land can be a problem. Drip irrigation works properly if the laterals can be run along topographic strains. Often system run instances may have to be adjusted to forestall runoff. Travelers and heart pivot techniques are often out of the question on hilly and severely sloping land.
3. Local climate patterns. In this case, sprinklers are much less desirable in areas the place excessive winds are widespread and in arid areas with a low humidity since water losses due to evaporation may be extremely high. Drip irrigation works well for both of the above mentioned conditions.
4. Type of crops grown. Sprinkler and drip techniques can require excessive ranges of investment. Therefore, it’s better to reserve their use for high-value crops like vegetables, small fruits and orchard crops rather than applying them to commodity crops like wheat and soybeans.
5. เกจวัดแรงดันpsi . All drip irrigation systems require some type of filtration. Overhead methods such as sprinklers seldom require filtration. Irrigation water must be examined for water borne pathogens. Depending on the crop grown and irrigation method used chlorine injection could also be required. Other water high quality issues that might be of concern include ranges of soluble iron and other dissolved minerals.