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Horticultura Brasileira

Print version ISSN 0102-0536


MAROUELLI, Waldir A; MEDEIROS, Maria A de; SOUZA, Rodrigo F de  and  RESENDE, Francisco V. Production of organic tomatoes irrigated by sprinkler and drip systems, as single crop and intercropped with coriander. Hortic. Bras. [online]. 2011, vol.29, n.3, pp.429-434. ISSN 0102-0536.

The efficient use of water and the environmental diversity are crucial to the balance and sustainability of the organic production system of tomatoes. The present study aimed to evaluate the organic production of tomato cultivated as a single crop and in consortium with coriander, under sprinkler and drip irrigation. The experiment was carried out at an organic production area on the Federal District of Brazil. The experimental design was randomized blocks with treatments arranged in a 2 x 2 factorial (two irrigation systems x two cropping schemes). No significant interaction between the both factors occurred, and there was no significant effect of the cropping scheme over the evaluated variables. Although the crop cycle has been reduced when tomato was drip irrigated, the fruit yield was not affected by the irrigation systems. The larger reduction in the stand of plants observed under sprinkler irrigation has been compensated by an increase in the number of fruits per plant, without a change on the fruit mass. The smaller volume of soil explored by the tomato roots associated with the higher incidence of South American tomato pinworm (Tuta absoluta) and mainly powdery mildew (Leveillula taurica) may have limited the yield of drip irrigated tomato. The fruit decay rate on sprinkle irrigated plants was twice the rate found on the drip irrigated system.

Keywords : Solanum lycopersicon; Coriandrum sativum; organic agriculture; fresh-market tomato.

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