ผลของการอบดินด้วยแสงแดดต่อสุขภาพของต้นกล้าและความต้านทานต่อไส้เดือนฝอยรากปม ที่มีผลต่อการเจริญเติบโตและผลผลิตข้าว

Abstract

This research aims to increase rice grain yield by improving rice seedling health in Northeast, Thailand. Here soil-borne diseases, including nematodal diseases, are a partly problem and alleviation of it will contribute partly to the welfare of the farmers through increased rice production and cash income and contribute to the economic development of the region. Two nursery seedbeds of 10 square m were prepared. One seedbed covered with transparent plastic sheet for 1 month. After that, removed the plastic and left the soil surface in sunlight for 1 week for the solarization treatment. RD6 rice seeds were broadcasted and after 30 days old rice seedling was transplanted to paddy field with plot size of 10*10 m., and rice was harvested at maturity. The result showed that the average of unfilled grain of non-solarization treatment was more than solarization treatment. In contrast, the average of plant height, root length, tiller numbers and panicle numbers of solarization treatment were more than non-solarization treatment. The average number of galls and root damaged of non-solarization treatment were more than solarization treatment significantly.