Dry Land Irrigation In Kandar, Tanimbar Islands Regency.

Dry land is one of the agro-ecosystems that has great potential. From the wide potential of dry lands in Indonesia (especially in Tanimbar Island Regency, Maluku Province), it is classified as quite high, but there are problems with water availability and socio-economic. One of the potential irrigation areas in Kandar sub-district because it does not yet have an appropriate irrigation system, and because of the limited rainfall in Kandar makes it a suitable place for an irrigation in the dry land. To analyze the proper irrigation network in the Kandar irrigation area, primary and secondary data were collected. From the data collected then analyzed, we obtained water balance in the Kandar irrigation area with two cropping patterns, namely: Corn-Peanut-Nutmeg and Corn-Corn-Peanuts experienced surplus from January-June and deficit in July-December. From the irrigation area of 1101.23 ha, the area is divided into 5 plots in accordance with the standard. After that, an overall water requirement of 0.616 l/sec is calculated, which means Weslyeta Irrigation System is sufficient for irrigation. Then we calculate the dimensions of the required canal and building dimensions, and we obtained the length of the primary canal is 3383m and the length of the secondary canal is 3053m.