Summer fertilization machine irrigation facility maintenance methods

With the promotion of irrigation products such as water and fertilizer integrated machines, the frequency of their use in vegetable greenhouses has also increased. So, how should water-saving irrigation equipment be maintained in the hot summer days in greenhouses?

Summer is the stage for soil treatment using the fallow method after harvesting; irrigation equipment, such as fertilizer applicators, needs to be put away for temporary storage. A reminder to all vegetable farmers: please pay attention to the following four points.

 

First: Flush the sediment out of the pipes before putting them away.

Most of the filters for water-saving irrigation and fertilization installed in greenhouses are mesh filters and disc filters. These two types of filters have a good filtering effect on larger sediment particles, while finer sediment will pass through the filter mesh or disc and Enter the pipes, accumulating inside.

Therefore, before putting away the capillary tubes of the water-saving irrigation system, open the closed end of the capillary tube and flush out the sediment by adding water pressure. During flushing, you can lift and shake the capillary tube several times. After that, you can remove it, drain the water from the capillary tube, and then put it away.

Second: Store in a dark, cool place after putting them away.

After putting away the pipes, store them in a dark, ventilated, and cool place. Do not expose them to strong sunlight, as this will seriously reduce the service life of the pipes. Company engineers have discovered during discussions with vegetable farmers that many farmers place pipes on the wind outlet below the vine steel wire; as long as it doesn't get in the way, they leave it until the next batch of vegetables is planted. Some farmers leave the pipes in the greenhouse and then use the fallow method, which will greatly reduce the service life of the pipes.

The best way is to roll up the pipes, and try not to fold them, because the pipe wall at the folded corners is easily worn, and once a leak occurs, the entire pipe cannot be used. 1557994041410572.jpg

Third: The main pipe of the front curtain can be covered with non-woven fabric.

The main pipe of the water-saving irrigation equipment installed in the greenhouse is generally located at the front of the greenhouse. There is less farming activity here, and once the pressure is adjusted, it generally does not need to be moved again. However, in the summer, appropriate protection is needed for the main pipe. Although the main pipe is relatively hard, it should not be exposed to high temperature and strong sunlight. It is recommended to cover the pipe with non-woven fabric to avoid direct sunlight.

Users with intelligent fertilizer applicators in the greenhouse need to remove them before using the fallow method and store them in a cool and dry place to avoid aging of components due to high temperature and strong sunlight.

Fourth: Remove damaged pipes promptly.

After several years of use, the pipes of the water-saving irrigation system will gradually show some damage. Each time the pipes are put away for storage, it is necessary to carefully observe whether there is any damage or blockage. If there is, it should be removed and replaced in time.

 

The irrigation technology used by the water-fertilizer integrated machine mainly refers to the use of a system of drippers on capillaries and low-pressure pipes, based on the actual needs of crops and fertilizer, to gradually and evenly drip the solution needed by the crops into the root zone of the crops.

Compared with ordinary furrow irrigation, the unique water and fertilizer supply method and irrigation amount of the water and fertilizer integrated machine make the entire nutrient absorption process and transport mechanism of crops show obvious differences. Therefore, compared with ordinary furrow irrigation, drip irrigation water and fertilizer integration is significantly different in soil temperature, water and fertilizer distribution, and salt transport. Shallow water and fertilizer supply and inter-membrane salt accumulation intensify the distribution and growth of crop roots near the surface, limiting the downward growth of crop roots. The root system is the main organ for crops to absorb nutrients and water, and the morphological structure of the root system determines the space and range of the root system to obtain water and nutrients, as well as the resource competition ability with adjacent root systems. Therefore, root system positioning is the first step to avoid excessive irrigation. There are two main methods for root system positioning: digging (digging a profile to see the root system in the soil) and observation (direct observation: the root tube uses professional equipment to scan the root system distribution at regular intervals; indirect observation: using a water meter to indirectly reflect the root depth according to the water absorption characteristics of the root system. After determining the depth of the root system distribution, irrigation depth control is the second step to avoid excessive irrigation. The relative water content can intuitively reflect the initial water content of irrigation and is often used as the basis for judging whether irrigation is needed and calculating the irrigation amount. The main methods for determining the irrigation amount based on the relative water content also include two categories: experience method: according to the field capacity, soil relative water content, and other soil water characteristics, combined with the irrigation depth to determine the optimal single irrigation amount; equipment combined with root system distribution characteristics, and pre-buried moisture monitoring equipment in the soil; Using the set limit to control the start and stop of the irrigation equipment.