Use of Soil Solarization for Pests Control in Arabica Coffee Seedbed
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Abstract
The efficiency of soil solarization to control fungi and weeds of coffee was investigated by covering moistened coffee seedbed with clear or black plastic sheet and exposing to sunlight under nursery condition, 50% shaded, for 6 weeks. The result showed that: clear plastic sheet produced highest temperature which was higher than black sheet and control. The temperatures were 39.36, 38.96 and 37.56 ° C for plots covered with clear, black and uncovered control, respectively. Increase in fungal population, checked by dilution plate technique, was lower in covered plots when compared to control though this difference was statistically insignificant (p> 0.05). The result remained the same when all plots was left uncovered and rechecked after 6 months. Change in diversity of fungal species was also inspected. Among many species identified, Cladosporium and Penicillium showed sensitivity to heat caused by solarization while one of beneficial fungi Chaetomium survived after the treatment. It showed that heat from solarization was not deleterious to indigenous saprophytic fungi. Weed population was significantly (p <0.05) controlled by covering with either clear or black plastic sheet but this suppression disappeared after 6 months.
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สมบัติ ศรีชูวงศ์ และนิตยา สุวรรณรัตน์, 2529. การศึกษาและรวบรวมข้อมูลเกี่ยวกับโรคของกาแฟที่พบใน ภาคเหนือตอนบน. รายงานเสนอในการประชุมเชิงปฏิบัติการงานวิจัยเพื่อพัฒนากาแฟบนที่สูงครั้งที่ 3 เรื่อง “เทคโนโลยีกาแฟอราบีก้า” วันที่ 12-14 มิถุนายน 2559 ณ โรงแรมเชียงใหม่ฮิลล์ จ.เชียงใหม่
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