Saiful, Catur Edi Margana,Sirajuddin
ABSTRACT
Embung or Tandon
is a small water reservoir in agricultural land
(small farm reservoirs) were built to covering the
excess rain water. Mean while on
the rain water or dry land ecosystem with
the rain fall intensity and distribution is uniformity. the Embung
Siwi is used to hold the excess water and functioned as a source
of irrigation water during the dry season. This condition is required
a reliable irrigation supporting, supported by
agricultural technology and information systems.
This information allows as the anticipation all result the
possibilities that occur fast and complex climate changes, Therefore,
agricultural production could be conducted on going
by maintaining the environmental conditions. One of the hydrology models supportting
information technology is the Crop Water Requirement
or better known as the Cropwat. Cropwat is a tool to determine the
water needs of crops and irrigation requirements. This
research tittled “The Requirement Analysis of Water for Rice Plant by Using
the Cropwat 8.0 Software in the Embung Siwi Irrigation District Area of
Eastern Lombok West Nusa Tenggara” is
aims to determine the value of the Crop Water
Requirements , particularly, for rice plant with the help of Cropwat 8.0. Software. Cropwat 8.0 for Windows was developed using Visual Delphi 4.0 and runs on the
following Windows form flate: 95/98/ME/2000/NT/X. The data is inserted
to process this software are BMKG’s (climatology) data and supporting data as
BPS’s (central statistic agency) data, irrigation’s data, and soil’s data.
Based upon the research result referring
to climatology, precipitation, plants, and soil data,
the rice plant water requirements at the location of Embung Siwi irrigation
starting from the preparation phase to harvesting stage, water needs most is in
early planting at 186,6 mm/day. It was because of the rice
plants very required water to be able to survive the
beginning of growth.
Key Word : Embung
Siwi, Crop
Water Requirements,Rice
Plant, Software of Cropwat 8.0
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