Effect of chicken manure application on movement of second-stage juveniles of the root-knot nematode Meloidogyne incognita in soil columns under laboratory conditions

Document Type : Original Article

Authors

1 Department of Soil Science, Faculty of Agriculture, Bu-Ali Sina University, Hamedan, Iran

2 Department of Plant Protection, Bu-Ali Sina University, Hamedan, Iran

3 ِDepartment of Soil Science, Faculty of agriculture, Bu-Ali Sina University, Hamedan, Iran

Abstract

The addition of organic fertilizers to soil not only changes its physical and chemical properties, but also affects the population of microorganisms, including nematodes. In this study the migration of second-stage juveniles of the root-knot nematode Meloidogyne incognita was investigated in soil columns treated with chicken manure for 18 weeks, under continuous saturation flow at 24 and 72 hours. The results showed that 24 hours after injection of the nematodes into the control column, the nematodes had moved in and against the direction of the water flow at short intervals from the injection site. Also, 72 hours after injection, the nematode population at the injection site decreased and the nematodes dispersed throughout the column in and against the direction of water flow. In the soil column treated with chicken manure, the nematode population was higher against the flow direction 24 hours after injection, and the distribution of nematodes in the soil column in and against the flow direction of water was more symmetrical 72 hours after injection. The addition of chicken manure to the soil caused a change in nematode movement by altering the physical properties, especially increasing the hydraulic conductivity and porosity of the soil.

Keywords

Iranian Journal of Nematology
Volume 1, Issue 1
August 2022

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