EFEITO DE FORMULAÇÃO DE FERTILIZANTE ORGANO-MINERAL LÍQUIDO NO CONTROLE DE NEMATOIDE DE GALHA EM BATATA.

Root-knot nematodes are important soil pests for potato cultivation, among other Solanaceae, where they parasitize roots and tubers causing significant losses for producers. The control was done exclusively with nematicides, many of which were banned or presented with very restricted use due to different environmental and economic factors. The objective of this work is to test a product formulated from liquid organomineral fertilizer containing humic substances, nutrients N, P, K (nitrogen, phosphorus and potassium), carbohydrates, amino acids and neem extract (Azadirachta indica). The experiment was carried out in a greenhouse with 8 treatments (different combinations of application in planting and / or hilling combined or not with abamectin) and 6 repetitions. The experimental plot was a plastic pot with 21 L of autoclaved substrate and a potato plant 'Agata' artificially inoculated with Meloidogyne incognita. The results showed the control exercised by the formulated in the different combinations of application, with the exception of the product applied only in the hilling. However, the nematode control did not affect the development of the plants, where there were no statistical differences between treatments for all variables tested. [ABSTRACT FROM AUTHOR]