Retrievable Drip Tape Irrigation Systems: An Alternative to SDI.
Irrigation Journal, May, 2001 by Barreras, Jess T.; Burt, Charles M.
BACKGROUND
Most of the literature related to drip on field crops and vegetables has dealt with Subsurface Drip Irrigation (SDI). However, over the last 3 years, California growers of lettuce, broccoli, celery, and cauliflower have generally shifted from SDI to surface retrievable tape. Perhaps we will see more of this trend with other crops as well.
There are advantages and disadvantages to both approaches. Starting in the early 1990s, numerous acres of buried, SDI were installed with the intent of leaving the tape in the ground for up to 10 years. Tape burial depths were typically 20 - 25 cm below the soil surface. The advantages, design layouts, and design procedures for SDI are explained in detail in the book "Drip and Micro Irrigation" (also...
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