Application of The Sub-Surface Drip Irrigation System For Cellery (Apium Graveolens L.) Using Thread Hose on Sandy Clay Soil

Abstract

The application of the sub-surface irrigation system aims to learn the performance of the application of the sub-surface irrigation system for the Celery (Apium graveolens L.) as well as to learn about the productivity of plants produced by the methods applied. The research method used the experimental method with experiments on dry soil with sandy clay textures. The drip irrigation device contains 12 drippers that have been covered with legacy cloth. The sub-surface irrigation system was applied to the field where the physical properties of the soil had been tested in the soil physical properties laboratory and for an emitter to each plant. The observable parameter is the crop water requirement, discharge/volume and decreasing of water level in the mariotte tube, emission uniformity (EU), wetting width, pressure head, plant growth (the heightof the plant, the width of the canopy, and the number of leaves), the physical properties of the soil, and the water productivity. Research shows that the performance of these subsurface irrigation tools is not good enough to apply to the ground (EU=41,2%). A celery plant responds to the growth adequately marked by the growing height, the canopy width, and the increasing number of leaves, yet the yield obtained from plant productivity was 0.33 kg/m3.