-The objective of this work was to evaluate the physicochemical and microbiological characteristics, antioxidant capacity and phenolic compounds of organic cherry tomatoes grown under fertigation with organic dairy cattle wastewater (DCW) with different nitrogen rates. Tomato plants, grown in an agroecological farm in Seropédica, State of Rio de Janeiro, Brazil, were subjected to four different nitrogen rates (T1=0, T2=50, T3=100 and T4=150% of N). The moisture, lipids, ashes, protein and total fiber contents, soluble solids (ºBrix), reducing and total sugars (%), pH and total titratable acidity (mg NaOH per 100 g) were evaluated. The total phenolic content (TPC) and the antioxidant capacity was determined by the DPPH and FRAP methods. The different nitrogen rates (%N) affected the pH, protein and soluble solids contents. The increase in %N increased the antioxidant capacities, according to the DPPH assay, and TPC. On the other hand, the tomatoes under fertigation with the highest %N presented lower antioxidant capacities according to the FRAP assay. The fertigation did not affect the microbiological characteristics of the tomatoes, which presented fecal coliforms count <3 NMP g -1 and absence of Salmonella in 25 g. Keywords:Fertirrigation. Physicochemical composition. Solanum lycopersicum L.. CARACTERÍSTICAS FÍSICO-QUÍMICAS, CAPACIDADE ANTIOXIDANTE E COMPOSTOS FENÓLICOS TOTAIS DE TOMATES FERTIRRIGADOS COM DIFERENTES DOSES DE NITROGÊNIORESUMO -O objetivo deste trabalho foi avaliar a capacidade antioxidante e a qualidade fisicoquímica e microbiológica de tomates cereja orgânicos cultivados com diferentes teores de nitrogênio (%N) utilizando águas residuárias da bovinocultura. As amostras de tomate foram obtidas na Fazendinha Agroecológica (SIPASeropédica, RJ) e submetidas a quatro diferentes tratamentos de acordo com os níveis de nitrogênio (T1=0, T2=50, T3=100 e T4=150 %N). Foram determinadas a umidade, teores de cinzas, lipídeos, proteínas e fibras totais. Além do pH, sólidos solúveis (ºBrix), açúcares totais e redutores (%); e acidez titulável (mg de NaOH por 100 g

The use of wastewater in the fertigation of agricultural crops increases productivity and product quality, and contributes to reduce environmental pollution. In this work, the objective was to evaluate how the use of dairy cattle wastewater (DCWW) in the fertigation of tomatoes affected production and productivity, as well as foliar nutritional contents, in an organic farming system. Treatments consisted of six nitrogen doses (0, 50, 100, 200, 300 and 400%), having N recommendation for tomato (100 kg/ha) as reference, applied using DCWW via fertigation. DCWW is made up of washing water, urine, feces and milk. Stem diameter, branch length, weekly fruit yield per plant and aggregate productivity were evaluated. N, P, K, Ca, Mg, S, Cu, Mn, Fe, Zn and B foliar contents were quantified. Data were submitted to analysis of variance (p≤0.05) and, where significant, polynomial regression models were applied. Treatment means were compared by the Tukey test (p≤0.05). The highest production, productivity and nutrient foliar accumulation were observed when 400% of the N dose recommended for tomato was used. There was an increasing linear effect on weekly and aggregate yield and also on nutrient accumulation in leaves as function of the applied N dose. N fertilization in tomato organic production can be carried out using DCWW via fertigation, but with a complementary mineral fertilization to supply plants with adequate amounts of phosphorus and potassium.

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O objetivo do estudo foi avaliar efeitos da disposição final da água residuária de bovinocultura de leite (ARB) tratada por uma unidade piloto de tratamento (UPT), sobre características químicas de planossolo cultivado com cenoura, nas profundidades de 0-0,20 e de 0,20-0,40 m. O delineamento experimental foi inteiramente casualizado, com quatro tratamentos (0, 100, 200 e 300% da necessidade de nitrogênio) e quatro repetições. Foram quantificados os teores de NTotal, PDisp, K+, Ca2+, Mg2+, Na+, COT, pH, CTC e SB, na profundidade de 0-0,20 e 0,20-0,40 m, avaliados no início (I) e fim (F) do ciclo do cultivo. Os teores de PDisp, K+, Na+ sofreram redução durante o ciclo, em ambas as profundidades. Entretanto Ca2+, Mg2+ e CTC apresentaram comportamento oposto, aumentaram com o final do ciclo. Não foi observada alteração para o pH, NTotal e SB. Com base nos resultados, a disposição final da ARB é uma alternativa complementar de tratamento, tendo em vista que a mesma não apresentou a curto prazo contaminação das profundidades avaliadas.

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The aim of this article is to measure the effect on performance, of the innovation in the organizational structure of the laboratories for clinical research associated with healthcare in infectious diseases of the Evandro Chagas National Institute of Infectious Diseases (INI) at Fiocruz in 2007, na effect herein identified as representative of the corporate intangible assets resulting from such restructuring strategy. The method consists, first, in the analysis of the literature about the measurement of intangible assets and organizational innovation, the potential effects of organization�s structure in performance, and the assessment of multipurpose public organizations in health, as sources of the basic notion on relations between intangible assets, organizational structure and performance which is used in this research. Next, the empirical research involves: (a) characterizing the change in organizational structure of 8 INI laboratories; (b) quantifying variables on the use of consumer goods and specialized personnel and on the production of teaching, research and health care; (c) calculating indicators about the development of relative technical efficiency of INI laboratories in the period 2002-2014, through Data Envelopment Analysis (DEA); and (d) using these indicators to compare the performance of these laboratories before and after the organizational innovation associated with the adoption of the Innovative Structure in their restructuring. As a contribution to knowledge, opens up prospects of collaborative research in Administration, Accounting and Economics for the development of a metric for organizational innovation. As management contribution, confirms the association between restructuring of INI laboratories as Innovative Organizations and their improvement in performance. Although the case study method imposes limitations to the generalizability of these results, mainly because there are no sufficient multipurpose organizations that use this methodology in performance assessment, it brings evidence on the potential benefit of the entrepreneurial-oriented innovation for the expansion and improvement of multipurpose public organizations.

The use of treated effluents rich in nutrients and organic matter has intensified in agricultural crops, contributing to the demand for water and fertilizers. The goal of this work was to assess the effects of fertigation with treated dairy cattle wastewater, for the cultivation of carrot (Daucus carota) when applied in four different doses, under field conditions, on nutrient accumulation, productivity, and health quality in the carrot (D. carota). Wastewater from treated cattle (WTC) was treated in a pilot treatment unit (PTU). Cultivation was carried out in two beds, and the WTC applied by drippers. Nitrogen (N) was considered the base element for the dose calculation, and a 100% N dose was equivalent to 150 kg ha−1. WTC doses of 0, 100, 200, and 300% N were evaluated. Productivity was evaluated at 70 and 120 days after sowing, in the aerial part (fresh and dry mass and accumulation of nutrients), in the main roots (fresh and dry mass, accumulation of nutrients, diameter, length, and sanitary quality), and as the total productivity of the two organs. As a result, an increase in productivity was observed for all treatments with WTC and accumulation of Ca and Mg. The roots did not present contamination; therefore, the carrots were fit for human consumption. It was concluded that the application of WTC in organic cultivation of carrots is a viable alternative means of plant fertilization, providing higher root productivity than the national average, reaching 72.6 t ha−1 for a dose of 100% N, without compromising on sanitary quality and is suitable for human and animal consumption.

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