L. Lehar, T. Wardiyati, M. Moch Dawam, A. Suryanto
Potato (Solanumtuberosum L.) is an important horticultural crop in Indonesia that has a high economic value. Development of potato crops at medium altitude is currently facing several constraints. The main constraint is environmental exposure to high temperatures. To maintain potato supply, there is a constant need for a cultivation technology to manipulate the environment where the plant grows using a mulching technology that affects the temperature of the soil. The purpose of this study is to describe the most suitable mulch combination with plant spacing in order to increase potato yields at medium altitude. The results showed that the potatoes grown with a plant spacing of 60 × 30 cm on rice straw mulch had the highest growth component at 8WAP. The plant height, stem diameter, and leaf area were 110.40 cm, 13.20 mm and 3,959.90 cm2, respectively. The growth rate was 2.36 gram/day, the dry weight was 660.73 grams and the yield was 66.30 tons ha-1. To grow potato in medium altitude is recomended using straw mulch and plant spasing 60 × 30 cm. © All Rights Reserved.
Graduate School of Agriculture, Faculty of Agriculture, Brawijaya University, Malang, Indonesia; State Agricultural Polytechnic of Kupang, Indonesia; Faculty of Agriculture, Brawijaya University, Malang, Indonesia
