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Nitrogen (N) and sulfur (S) are nutrients that, in addition to influencing plant growth and production, interfere with processes related to postharvest fruit quality. In the present study, N x S interaction was evaluated in the postharvest quality of tomato (Solanum lycopersicum L.). The experiment was conducted in a greenhouse using 5 dm3 capacity vessels containing a 0-20 cm layer of a dystropherric Red Latosol. A 5 x 3 factorial design was used, with combinations of five doses of N (0, 100, 200, 300 and 400 mg dm-3) and three doses of S (0, 60 and 120 mg dm-3) distributed in a completely randomized design, with four repetitions. After harvest, the attributes of fruit quality were evaluated: firmness, pH, soluble solids (SS), titratable acidity (AT), soluble solids ratio and titratable acidity (SS / AT), vitamin C, lycopene and beta-carotene. An increase in firmness was observed, as well as the content of soluble solids, titratable acidity and the SS / AT ratio of the fruits as a result of the interaction N x S. However, this interaction favoured the reduction of the contents of vitamin C, lycopene and beta-carotene, and the quality characteristics of tomato fruit in relation to the recommended values. Only the increasing doses of N favoured a higher pH in the tomato fruits.

In the agricultural sector, which is a pillar for the development of the world economy, and for family subsistence, having information is critical. The objective of this study is to analyse the information-seeking behaviour of farmers in Maputo City, Mozambique. A case study was conducted involving ten farmers from the KaMbukwana and KaMovata Municipal Districts. For the practice of agriculture, farmers in Maputo City largely depend on information from their fellow farmers and on government institutions as a reliable source. Other sources of information include television, workshops and non-governmental organisations. There is a high perception of relevancy of information for practice of agriculture; the farmers appeal for the use of information and communications technology as a mechanism to share information.