Subak: Irrigation Management

In effort to keep harmonious relationship with other living creatures such as pests and insects, rice farmers in former times used not to kill them, but rather they performed ritual known as nanglukmerana (avoid pest attack ceremony). This ritual is still practiced until today by Balinese farmers. The philosophical meaning of this ritual is that not to kill any creature as could as possible but just to protect the crops from pest attack. In some places, many subaks still used to perform rat cremation ceremony as a form of nangluk merana ritual, by praying for Gods blessing so that no pest would attack their crops. Other important rituals that need to be mentioned here are the so called tumpek uduh (flora day ceremony) and tumpek kandang (fauna day ceremony). Each of these rituals is performed every 210 days on Saturday based on Balinese calendar. These rituals symbolizing the biodiversity World-Seed-Bank Nov-07 preservation efforts of Balinese rice farmers.

http://blog.baliwww.com/arts-culture/467/