اثرات کاربرد ورمی کمپوست بر حرکت پوره سن دو نماتد مولد غده Meloidogyne sp.))

Many of organic amendments not only change the chemical properties of the soil but also effect on the soil microorganisms and cause to reduce of plant pathogens affects including nematodes. Plant parasite nematodes often damage to agricultural products thatreaches to one hundred million dollars annually. Plant parasitic nematodes movie into the soil and are affected by soil properties and its microorganisms. Soil conditions are effect on the second stage larva of Meloidogyne movement, so effect on the onset of the disease. This study aims were to investigate of vermicompost effects on the physical and chemical properties of soil and its effects on the movement of J2 of Meloidogyne. This test was carried out in a randomized complete block design with two treatments (the column filled with the soil that incubated by vermicompost in 18 weeks and the control column), under factorial experiment in three replications and under steady water flow conditions. Nematodes of the soil were extracted by tray method after 24 and 72 hours of injection into the soil. The results were analyzed using SAS software. Nematodes in the treatment soil moved more intervals than in the control soil, in both of 24 and 72 hours after injection. It seems, these results were caused to effect of vermicompost on physical and porosity of the soil, beside of its microbial effects. However, the results of present study showed that nematodes could withstand water flow and the faster movement in the treatment soil could cause decreasing the disease of the nematodes.