DESAIN PETA SISTEM IRIGASI TANAMAN PADI SAWAH (ORYZA SATIVA L.) DI DESA BUSISINGO KECAMATAN SANGKUB KABUPATEN BOLAANG MONGONDOW UTARA

Abstract

ABSTRACT

The objectives of this study are 1). Calculate the flow rate of water. 2).
Calculate the value of infiltration, percolation, evaporation and evapotranspiration.
3). Make an irrigation design map for rice fields. This study uses direct data
collection methods in the field and uses secondary data. Collecting data directly in
the field and using secondary data. The results showed that based on secondary
calculation data, the water discharge value in December was 60.00 m3
/second,

January 97.5 m3/second and February 95.00 m3

/second. Based on the data obtained,
the average water loss due to infiltration is 9.64 cm/hour = 2.31 mm/day, percolation
is 3.0 mm/hour = 71.9 mm/day and evaporation is 5.78 mm/day. To design an
irrigation system, the effective water requirement for irrigating rice fields with an
area of approximately 50ha by reducing the initial water discharge with water loss
due to infiltration, percolation and evaporation by looking at the reference to existing
data, the results obtained are 37.88 m3

/second to irrigate the land.

Keywords: Irrigation, Map Design of Irrigation System