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COMPORTAMENTO INICIAL DO MARACUJAZEIRO EM SOLOS AFETADOS POR SAIS SUBMETIDOS A TRATAMENTOS ALTERNATIVOS COM O USO DE COPRODUTOS DE MINERADORAS MARIA JOSE DE HOLANDA LEITE 1 ; ARTUR DIEGO VIEIRA GOMES 2 E RIVALDO VITAL DOS SANTOS 3 1 Doutoranda em Ciencias Florestais, UFRPE, Caixa Postal 63, 52171-900, Recife – PE, maryholanda@gmail.com 2 Mestrando em Ciencias Florestais, UFCG, Caixa Postal 61, 58708-110, Patos – PB, arturvieira1@hotmail.com 3 Prof. Unidade Academica de Engenharia Florestal, UFCG, Caixa Postal 64, 58708-110, Patos – PB; rvital@cstr.ufcg.edu.br 1 RESUMO Os solos afetados por sais sao normalmente encontrados em zonas aridas e semiaridas, onde a evaporacao e superior a precipitacao. O trabalho objetiva avaliar o efeito de corretivos, rejeitos de mineradoras e composto orgânico nos atributos dos solos e no crescimento do maracuja ( Passiflora edulis Sims) em solos salinizados. Os tratamentos foram: omissao e presenca de gesso agricola, dois substratos (rejeito de vermiculita + composto orgânico e rejeito de caulim + composto orgânico) e cinco doses de compostos 0 15, 30, 45 e 60%, tres repeticoes. Apos a aplicacao dos tratamentos os solos ficaram incubados por 15 dias e sofreram sete lavagens a cada dois dias. Em seguida coletaram-se amostras de solo para analises e efetuou-se a semeadura do maracujazeiro. De acordo com os resultados obtidos na avaliacao do solo, antes e apos o uso de gesso, chegou-se as seguintes conclusoes: o gesso e as subsequentes lavagens reduziram a condutividade eletrica e o sodio da solucao eluida do solo, assim como o gesso aumentou a altura, area foliar, massa seca da parte aerea e da raiz do maracujazeiro, exceto para diâmetro e numero de folhas. Desta forma, recomenda-se o uso de corretivo na correcao de areas salinizadas do cariri paraibano, bem como cultivo do maracuja, pois o uso do composto orgânico e dos rejeitos de mineradoras mostraram-se promissor no crescimento das plantas de maracujazeiro. PALAVRAS-CHAVE: semiarido; salinidade; degradacao. LEITE, M. J. de H.; GOMES, A. D.; SANTOS, R.V. dos INITIAL BEHAVIOR OF PASSION FRUIT IN SOILS AFFECTED BY SALINITY  RECEIVING   ALTERNATIVE TREATMENTS WITH TAILINGS  FROM  MINING COMPANIES  2 ABSTRACT Soils affected by salts are usually found in arid and semi-arid areas, where evaporation exceeds precipitation. The study aimed to evaluate the effect of soil amendments, mining tailings and organic compound on soil attributes and growth of passion fruit (Passiflora edulis Sims) in saline soil.  Treatments were as follows: absence and presence of gypsum, two substrates (vermiculite tailings + organic compound and kaolin tailings + organic compound) and five doses of compounds 00, 15, 30, 45 and 60%, 3 replicates. After treatment application the soils were incubated for 15 days and  washed 7 times every two days.  After that, soil samples were collected for analyses and sowing of passion fruit was carried out. According to the results from soil analyses, before and after gypsum use, the following conclusions could be reached: gypsum and the subsequent  washing  reduced electrical conductivity and sodium from the   eluted soil solution. Moreover, gypsum increased height, leaf area,  shoot and root dry matter of passion fruit , except for diameter and number of leaves.  Accordingly, the use of amendments  in   salinity areas  as well as cultivation of passion fruit is recommended  as the use of the organic compound and mining tailings proved to be promising  for  growing passion fruit plants.  Keywords: semi-arid, salinity, degradation