Kajian Distribusi Air pada Tanah Andosol Menggunakan Tanaman Cabai Rawit (Capsicum frutescens) dengan Jumlah Pemberian Air yang Berbeda

Abstract

INDAH KHAIRANI SIREGAR: Study of Water Distribution on Andosol Soil Planted is the Small Chili (Capsicum frutescens) with Different Amount Of Water Provision, guided by SUMONO and SULASTRI PANGGABEAN. Knowing the distribution of water on agricultural land is important as one of the considerations in providing irrigation water. This study was aimed to study the distribution of water in the Andosol soil using small chili with different amount of water provision and their effect on crop production. Parameters measured were physical properties of soil, the water content at field capacity, evapotranspiration, soil water distribution and plant dry weight. The results showed that the Andosol soil texture was sandy clay loam. The volumetric water content of field capacity was 45.42%. The evapotranspiration at the age of 30-40 and 41-75 days were 1.54 mm / day and 1.44 mm / day respectively. Distribution of groundwater at the treatment of 100%, 80% and 60% FC on the plant aged of 30-40 days, was 49.13%-52.51%, 40.38%-48.61% and 30 %-42.36% respectively, with the highest water content was in the soil layer of 0-5 cm. At the aged of was 41-75 days, the distribution of groundwater at the treatment of 100% field capacity ranged between 45.2% - 56.04%, with the highest water content was in the layer of 5-10 cm, while in the treatment of 80% and 60% FC soil water distribution was 44.32% and 44,32% - 47.82% - 39.80% respectively with the highest water content was in the layer of 0-5 cm. The highest plant dry weight at treatment of 80% was 1.37 g at 30-40 days and 5.62 g at 41-75 days.