%0 Journal Article
%T N¨ªveis de salinidade e manejo da fertirriga£¿£¿o sobre caracter¨ªsticas da berinjela cultivada em ambiente protegido
%A Silva
%A Everaldo Moreira da
%A Lima
%A Carlos Jos¨¦ Gon£¿alves de Souza
%A Duarte
%A Sergio Nascimento
%A Barbosa
%A Fernando da Silva
%A Maschio
%A Rafael
%J Revista Ci¨ºncia Agron£¿mica
%D 2013
%I Scientific Electronic Library Online
%R 10.1590/S1806-66902013000100019
%X the objective was to study the effects of different levels of soil salinity on the phenological variables and production of the eggplant when grown in pots in a protected environment. the study was carried out at the experimental site of the department of biosystems engineering esalq/usp in piracicaba, s£¿o paulo. the treatments consisted of a combination of two factors: six initial levels of soil salinity (s1 = 1.3, s2 = 2.4, s3 = 3.6, s4 = 4.5, s5 = 5.6 and s6 = 6.4 ds m-1) and two fertigation management: with the electrical conductivity of the soil solution being controlled (m1) and traditional (m2), following the absorption curve of nutrients from the culture. the statistical design adopted was a randomized complete-block design with four replications, arranged in a 6 x 2 factorial. the results showed that the levels of soil salinity directly affected the variables of dry-matter production, fruit production and leaf-area index of the plants. it was found that the average reduction in yield of the eggplant crop in a greenhouse, was approximately 8.65% for an increase of 1 ds m-1 in the salinity of the soil above the threshold salinity of 1.71 ds m-1.
%K eggplant
%K soil-salinity
%K manure-fertilizers.
%U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S1806-66902013000100019&lng=en&nrm=iso&tlng=en