Analysis of Water Distribution of Digital Sprinkler Irrigation System on The Growth of Chili Plants (Capsicum Annum L.) in The Visitor Plot of BSIP NTB

Abstract

The decline in chili productivity is caused by several factors, one of which is the availability of water. One of the efforts to meet water needs is by providing water for sprinkler irrigation systems. This study aims to analyze water distribution, determine the efficiency of water use, and observe the growth response of chili plants. The method used is an experimental method that calculates the uniformity of the distribution of sprinkler irrigation water. The treatments used in follows: P1 = 210 ml urea + 210 ml NPK, P2 = 105 ml urea + 105 ml NPK, P3 = 210 ml urea, and P4 = 210 ml NPK. The parameters observed in this study were uniformity coefficient, water discharge, radiant distance, plant water requirement, plant growth, land area, and soil physical properties. The results of the study showed that the average water uniformity distribution was 77.16%. The highest water discharge is 2.24 liters/minute, with an average beam distance of 2.42 m. The duration of watering chili plants for the initial phase of 21 minutes is 43 liters/day, and the middle phase of 40 minutes is 82 liters/day. The best growth of chili plant productivity is on P3 treatment 210 ml of urea. The research area is 22.75 m². The physical properties of the soil at the research site had a sandy clay soil texture. The site research shows that the uniformity distribution is quite good because the average value is >75%.