USING METHODS OF SOLARIZATION, BIO-FUMIGATION, BURNING AND KEEP DRYING SOIL CONTROL ROOT- KNOT NEMATODES ON LETTUCES, IN LAM DONG
AbstractRoot-knot nematodes (Meloidogyne sp.) are an important plant – parasitc group on green lollo lettuce. Experiments, included solarizion, bio-fumigation, burning and keep drying soil were carried out to control root-knot nematades on lettuces in Lamdong province. The results showed that burning method was the most effective (in soil) with only 28 juveniles/100g of soil and 96.75% after treating compared to the control with 1312 nematodes/100g of soil. The infection proportion of root-knot nematodes (1.433) and the number of juveniles of root-knot nematoses (201 juveniles/5g of root) in the burning were the lowest. Therefore, the height and the yield of crop treated with this method were the highest, proved by 25.99 cm and 30.25 tons/ha, respestively. In contrast, the root infection proportion in the control was the highest, acounting for 5.733 while the figures for the height (18.8 cm) and the yield of crop (15.93 tons/ha) were the lowest.
điểm / đánh giá
Natural Sciences and Tecnology