SUBSURFACE DRIP IRRIGATION RESOURCE CENTER

The advantages of subsurface drip irrigation (SDI) were already apparent when drip irrigation was first realized. The first field experiments conducted on the drip irrigation method were based on subsurface drip irrigation in trials conducted by Israeli agronomists at the end of the 1950's.

Over the years, Netafim has developed various methods, tools and accessories that gradually improved subsurface drip irrigation and turned it into a reliable irrigation method. Despite the many years of continued research on SDI, it was only in the 1990's that the 'doctrine' of subsurface drip irrigation was fully formulated, including the development of specific products suited for SDI.

Netafim has accumulated extensive experience in subsurface drip irrigation in nearly every country in the world. Nowadays, SDI is an accepted and common irrigation practice. It is an irrigation management tool that enables precise control over the root zone environment of your crop. This control often results in consistently high yields. In addition, better water and fertilizer management help reduce fertilizer inputs, water usage and runoff.

Crop irrigated with drip irrigation

The subsurface drip irrigation resources in this section focus on:

  • The benefits of SDI systems
  • System components and typical layouts
  • Installation
  • Start-up, operation and maintenance
  • SDI for specific crops; corn, cotton and alfalfa
  •  


Benefits of Subsurface Drip Irrigation

There are many benefits to subsurface drip irrigation including the highest water use efficiency of any irrigation method. And studies show that crops grown under SDI can reduce water use up to 40% while increasing yields and/or quality compared to other irrigation methods. SDI also easily adapts to smaller, irregular sized fields and topography which are difficult or impossible to irrigate with other methods.

The following resource documents discuss these and many other benefits.

Benefits of SDI in Row Crops
Successful Row Crop Drip Irrigation
Subsurface Drip Irrigation Systems
 
Row Crop irrigated with drip irrigation


System Components and Typical Layouts

Choosing the right components for your SDI system is critical to overall performance and reliability. The following resource documents focus on system components, design considerations, typical layouts and other critical aspects that need to be considered with an SDI system.

System Components/Typical Layouts
System Components
Irrigation Water Management
Root Zone Management 

Root Zone management with drip irrigation guide 


Installation

From unwrapping the coils to laying the dripline in the ground, the following resource documents guide you through a thinwall dripline installation along with installing submains and dripline connections.

SDI Installation
Installing Submains and Dripline Connections 
 


Start-up, Operation and Maintenance

Whether you have just installed a new system or are starting up the SDI system after sitting through the off season, we'll outline the simple steps to take to help ensure optimum system performance. To achieve the highest yields and water savings possible with your SDI system, it is necessary to monitor system operation and make adjustments as needed. And an SDI system requires regular maintenance to ensure that it performs to specifications and provides long-life potential. The following resource documents address all of these topics.

System Start-Up
SDI System Operation and Maintenance Guide
Preventive Maintenance Guide 
 

Ops Guide 


SDI for Specific Crops

Netafim also has resource materials focused on subsurface drip irrigation and specific crops such as corn, cotton and alfalfa. The following links direct you to crop specific pages dedicated to the use and success of SDI including production manuals, grower success stories and more.  

Corn
Cotton
Alfalfa 


For More Information

To find the nearest Netafim USA District Sales Manager, visit our Support Team page. 
To find the nearest Netafim USA Authorized Dealer, visit our Dealer Locator page.
For general inquiries, visit our Contact Us page.