THE APPLICATION OF GEOELECTRICAL AND ELECTROMAGNETIC METHOD ON AGRICULTURE LAND

• Main Author: Wulandari, Andira
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/43937
• Institution: Institut Teknologi Bandung

Precision farming is an agricultural tool that utilize technology information in order to optimizing agricultural land such as increasing crop production and minimizing environmental impacts due to excessive use of fertilizers. By implementing precision farming, farmers could obtain additional information that is useful for managing their land because this method develops specific rules for crop management based on soil variability and hydrological properties of the land. In this study, geoelectrical and electromagnetic methods are used to see the distribution of water in agricultural land because the resistivity and conductivity values measured are related to the water content contained in agricultural land. Both methods are suitable to use as a preliminary survey on precision farming because this method can measure the resistivity and conductivity values directly in the field and not destructive to the agricultural land. Measurements were made on agricultural land, located in Parompong, Lembang, Bandung. ARES II instrument was used to measure the resistivity value while the EM38-MK2 was used to measure the conductivity value. The number of tracks is ten, six tracks are north-south and four tracks are east-west oriented, with a length of 14.4 m and 24 m respectively. The interval between the tracks is 5 m and the electrode spacing used is 0.3 m and 0.5 m. The number of electrodes used were 48 pieces and two configurations of the geoelectric method were used, Wenner and Dipole-Dipole. Measurement of the conductivity value uses vertical dipole mode and two coil spacing, 0.5 and 1 m. From the results of data processing and correlation with the pit test, the resistivity value obtained has a range of 15 - 170 ?m while the conductivity value has a range of 2 - 115 mS / m. The interpretation of the resistivity value is then compared with the interpretation of the conductivity value