The objective of research was to know the effect mixtures of a chitinous material derived from carb waste (25%), neem meal (50%), and Nitrogen manure(25%) for control of root-knot nematode (Meloidogyne incognita L.) on soybean.The research was conducted under field condition and NematologicalLaboratory of Departmen of Plant Pest and Disease. Agriculture Faculty of SriwijayaUniversity. from Sept…