EFEKTIFITAS EMBUNG UNTUK IRIGASI TANAMAN HORTIKULTURA DI CIKAKAK SUKABUMI

Abstract

Dry land farming provides promising opportunity in increasing agricultural production in rural area. But, lack of available water during dry season poses problem in developping dry land farming. An effective water conservation technique should be developped to alleviate this probelm. Use of small farm reservoir (embung) can be considered as one viable option for such conservation technique. The purpose of this research was to study the effectivity of small farm reservoir to supply irrigation water for horticulture commodity. Two different types of small farm reservoir (SFR) were constructed in micro-catchments for the research, i.e. a) SFR built with concrete, b) SFR built without concrete. SFR built with concrete had higher water available for irrigation, that is 34% higher compared to SFR whithout concrete. In addition, empirical equation that was used in this research was quite reliable in predicting colected water in the SFRs. Using 80% monthly rain probability, on average one small farm reservoir with dimension 8 m x 2m x 2 m was able to supply irrigation water for 100 m2 horticulture plant for the whole growing period