Palavras-chave: Lactuca sativa L., Meloidogyne spp., energia solar, tratamento térmico do solo. ABSTRACTEffect of solarization, chemical and organic fertilization on the control of nematode on greenhouse lettuce
adubação). No experimento solarizado, o solo foi coberto durante 132 dias com plástico transparente. Os artrópodes foram coletados por meio de armadilhas tipo alçapão em três épocas (antes da implantação do experimento, após a solarização e após a colheita). Foram utilizados índices faunísticos e de diversidade em cada experimento, tratamento e épocas. Os principais grupos coletados foram: Collembola (82,8%), Acari (7,1%), Hymenoptera (6,1%) Coleoptera (1,3%) e outros (2,7%). A classe Collembola foi a mais abundante, mesmo na colheita, quando a subordem Acari aumentou substancialmente. As espécies de Collembola predominantes foram: Proisotoma tenella (Reuter) (34,3%); Seira atrolutea (Arlé) (29%); Folsomides centralis (Denis) (7,2%); Isotomurus sp. 161 (2,4%) e Sminthurides sp. 98 (1,6%). Observou-se que a diversidade e abundância da comunidade de artrópodes não foi influenciada pela solarização ou adubação. Palavras-chave:Lactuca sativa L., fauna; fertilizante, estufa, tratamento térmico, energia solar. ABSTRACT Solarization, organic and chemical fertilization combined effects on arthropods community in soil cultivated with lettuceTo evaluate the effect of solarization, chemical and organic fertilization on soil arthropods community in lettuce, two blocks plots trials were carried out in Brasília, Brazil. One research was conducted with solarization and the other without solarization in a soil cultivated with lettuce, cv Veronica, under protected cultivation. Each trial consisted of five fertilization treatments: T1= organic fertilization; T2= amoniacal nitrogen (ammonium sulphate); T3= chemical fertilization; T4= organic and chemical fertilization; T5= control (without fertilization). In the solarized trial, the soil was covered for 132 days with transparent plastic. The arthropods were collected by pitfalls at three moments: 1) before solarization, 2) after solarization and 3) at harvest. Faunistic indexes were calculated in each trial, treatment and moments. The main collected groups were: Collembola (82.8%), Acari (7.1%), Hymenoptera (6.1%), Coleoptera (1.3%) and others (2.7%). Collembola class represented the largest proportion of the arthropods, even at harvest when the sub-order Acari substantially increased. The predominant species of Collembola were: Proisotoma tenella (Reuter) (34.3%); Seira atrolutea (Arlé) (29%); Folsomides centralis (Denis) (7.2%); Isotomurus sp.161 (2.4%) and Sminthurides sp. 98 (1.6%). Arthropods community was not affected by solarization or fertilization.
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