JOINT-WELL TECHNOLOGY AND THE EFFECT ON THE RISK PRODUCTION OF SWEET POTATOES IN COASTAL LAND FARMING
WIDODO, ARIS SLAMET
MetadataShow full item record
Marginal land including coastal land is expected as an alternative to be used as agricultural productive land. One obstacle of the coastal land is that the sandy soil porosity is high and limited water resources. Technology of joint-well has been applied to supply water in coastal land farming. The purpose of this study was to analyze the technology of joint-well and determine the influence of the joint-well technology to the risk production of sweet potatoes in Bantul regency. This study used survey method in which the location is Sanden Beach, Bantul. This research used risk analysis by using the software program package Eviews for regressing equation production function with maximum likelihood estimation method to determine the influence of joint-well on production and that of joint-well to the risk production. The study concluded that the technology of joint-well is as alternative watering system that can be applied on coastal land. Joint-well means water sumps and usually made of concrete bus functioning to juxtapose and ease farming irrigation. The need of joint-well on the lands of 1000m2 is about 8 - 10 concrete bus units. Working mechanism of joint-well is that concrete bus put in a row within 8 - 10 m and then embedded in the farming lands. Underneath of the concrete bus is casted with concrete bus cover and made impermeable, and then among concrete bus is joined with pipes (paralon). The irrigation system i.e. the farmers take water from its source (ground wells, river) by using machine (diesel) and then insert it into one of joint-wells until all the join-wells fully filled. The farmers do water the cropping by taking water from joint-well using “gembor”. Joint-well affects to the risk of sweet potatoes farming production only in the dry season 1 and dry season 2, which amount to 20.07% and 13.69%. While in the rainy season, the joint-well does not affect significantly.