The invention relates to the field of
agricultural irrigation, in particular to a method for lowering spraying
drip irrigation engineering cost, which is concretely realized through the following three approaches of: 1. omitting a
trunk pipe, wherein a
system comprises a mobile water pump set, a water inlet plug and a water inlet
pipe, a
branch trunk pipe, a
branch pipe or a capillary pipe, and a spray head or a dropping head, wherein the spray head or the dropping head is installed on the
branch pipe or the capillary pipe, the branch pipe or the capillary pipe is connected with the branch
trunk pipe, and the essential thereof is that water is taken by the mobile water pump set from a riverway or a slot, supplied for the water inlet plug and sequentially sent to the spray head or the dropping head through the water inlet pipe, the branch trunk pipe, the branch pipe or the capillary pipe to implement spraying
drip irrigation so as to reduce the length of the trunk pipe and lower the
engineering cost; 2. reducing the
diameter of the trunk pipe, realizing through dividing a small rotational
irrigation area, and qualitatively lowering the cost of a pipeline; and 3. accurately calculating the
diameter of the pipeline, and quantitatively further lowering the construction cost of a pipeline
system. The invention effectively lowers the spraying
drip irrigation engineering cost, is easy to popularize and apply and supplies equipment for scientific
irrigation, fertilization, temperature reduction and yellow sand flushing to modern
agriculture.