What Do You Know About Blueberry Irrigation?

October 22,2021

Due to the short history of large-scale planting of blueberries in China, the water and fertilizer management technology of blueberries is still basically in the traditional state. With the expansion of blueberry market, large-scale planting will inevitably be the choice in the future. The traditional irrigation and fertilization technology is inefficient and has large artificial investment, which is not suitable for large-scale planting. The automation and mechanization of blueberry irrigation and fertilization is an inevitable trend.

 

Modern irrigation technology mainly includes sprinkler irrigation and drip irrigation. Chemical fertilizer, trace elements and some other agricultural chemical products can be applied through sprinkler and drip irrigation systems. Spraying fertilization is foliar fertilization and drip fertilization is root fertilization. The technology of fertilization through irrigation system is called water fertilizer integration technology, which is being popularized on a large scale in China.

 

Blueberry irrigation can be sprinkler irrigation or drip irrigation. However, due to the higher water and fertilizer utilization efficiency of drip irrigation, drip irrigation technology tends to be used in blueberry planting all over the world.

 

blueberry irrigation system

 

Importance of irrigation

 

In the critical period of blueberry growth, water stress will seriously affect the yield and quality of blueberry fruit. The water shortage of blueberries sometimes seems not obvious, but careful management of irrigation is an important factor for the long-term growth, health and high yield of blueberries. The following points are important for irrigation management:

 

-Know the basic principle of plant water demand;

 

-Have a good irrigation system;

 

-There should be a reasonable irrigation system;

 

-The operation of irrigation system shall be monitored in real time;

 

-Management of irrigation by monitoring soil moisture;

 

-Irrigation can also be managed by detecting changes in meteorological data

 

Installation of high-quality irrigation system

 

Installing a high-quality irrigation system is the first step to do a good job in water management of blueberry planting. The following work should be done to establish an irrigation system.

 

Design and installation: drip irrigation technology is the most efficient irrigation technology. High quality design can save water and cost. Drip irrigation design is quite complex. In order to make the system irrigate evenly, meet the water demand of blueberries, control flexibly and conveniently, operate safely and reliably, configure high-quality equipment and cost economically and reasonably, it is best to ask a professional design institute or irrigation company to design.

 

Professional design can ensure reasonable pump selection. If the park is to be expanded, the water pump must have sufficient water supply capacity to meet future needs.

 

When installing drip irrigation in slope Park, the influence of slope should be considered. Poor design will lead to too much irrigation at the foot of the slope and not enough irrigation at the top of the slope.

 

Blueberry growers in Australia have found that micro spray irrigation can wet blueberry leaves and induce diseases. Therefore, it is recommended not to use sprinkler irrigation.

 

Blueberry fertilization usually adopts the integrated technology of water and fertilizer. The liquid fertilizer is injected into the drip irrigation system or the soluble fertilizer is dissolved on site and then injected into the drip irrigation system.

 

If only one dripper is installed in a blueberry seedling, it is very important not to place the dripper in the middle of the blueberry cluster. Because the main water and fertilizer absorbing roots are far away from the main diameter of blueberries, long-term irrigation and fertilization near blueberry clusters can not absorb enough water and nutrients, but will cause root Phytophthora and other diseases.

 

Fertilization and irrigation can be implemented by one drip irrigation pipe in a row or two drip irrigation pipes in a row. Single row drip irrigation pipes are often hung on trees, and double rows are often laid on wood debris or under plastic film. Wood residue and film mulching will make it difficult for rainfall infiltration, and irrigation may be necessary even during rainfall.

 

The drip irrigation pipe hung on the tree must be removed and hung again when the blueberry seedbed needs to be raised or overloaded, which is a heavy workload. Blueberry plantations in the southern United States rarely change varieties and improve ridge height frequently, and often use single tree hanging method to implement irrigation and fertilization.

 

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