The microbiota soil has an important role as an indicator of the sustainability of agroecosystems, reflecting the environmental changes, particularly the antrophic actions. To evaluate the influence of different fertilizers in populations of Pseudomonas spp, in the common kale was conducted a field experiment with kale at the Agrobiology Embrapa National Center, in Seropédica, RJ, on a Argisol. The experimental design was random blocks in factorial 3 x 4, with treatments (home biosolid, cattle manure and urea fertilization), four dose levels (0, 100, 200 and 400 kg de N.ha-1) and four replicates. The amount of fertilizer applied was given according to the dosage of nitrogen.ha-1 desired. From the rhizosphere, at 15 and 30 days after transplanting the seedlings to the field, we selected strains showing fluorescence under UV light with a wavelength of 366 nm. For grouping the isolates were considered the main morphological characteristics. The majority being identified as Pseudomonas putida (54%) and P. fluorescens (14%), by API 20NE System (bioMérieux, Analytab Products). The results obtained from the reactions of the API 20NE test kit showed a wide variation in the utilization of carbon compounds and enzymatic inter-and intraspecific. Some groups of isolates colonized preferentially the cabbage rhizosphere of plants fertilized with biosolids and different doses of fertilizers used. There were a smaller number of groups present in treatments with urea.

With the aim of determining the concentration of potassium (K+) and electrical conductivity (EC) in water drainage in the cultivation of sweet pepper (Maximos F1), and to evaluate the possible risk of contamination of groundwater was conducted a experiment on a battery of 40 drainage lysimeters, whose experimental plot consisted of three plants in each lysimeter, located at campus of the Federal Rural University of Pernambuco (UFRPE), Recife, PE, in a completely randomized factorial scheme 5 x 2, with four replications, being five irrigation depth (80, 90, 100, 110 and 120% of ETc) and two levels of potassium (80 and 120 kg ha-1 of K2O), applied parceled according to phenological phase, through a drip irrigation system, with selfcompensable emitters. Throughout the cycle proceeded to the measurement of volumes generated from natural drainage and the fortnightly water balances in the lysimeters, and collection of samples for tests to determine the K+ and EC. The K+ content and the EC showed significant linear adjustments in all phases of the cycle, whose mean values were 9.79 mg L-1 and 0.35 dS m-1, respectively. The drained volume showed increases in certain events of water balance due to the high rainfall during the period, leaching more potassium ions. It was observed that with the application of higher blade and the higher dose losses were higher K2O, an average 60.10 kg ha-1.

Water is a limiting factor for crop yields, for example yellow passion fruit, requiring from use of irrigation due to limitation of surface waters. This study aimed to evaluate irrigation levels and fruits quality in yellow passion fruit production in Semiarid conditions, thus an experiment was carried out. The seedlings were grown in greenhouse and transplanted in the field spacing 4 m x 2 m. The treatments studied were five water levels: 60; 80; 100; 120 and 140% from ETo, applied through drip irrigation with 4 repetition. The parameters evaluated were average fruit weight (g), yield (t ha-1), the pulp yield with seed (%), juice yield (%) and skin percentage (%). The results obtained in the experiment showed that the highest yield of hybrid passion fruit with average weight over 150 g, and the highest yield was obtained with the blade of 120% ETo. The yield of pulp with seeds was negatively affected by increased volumes of water for irrigation. Can use plant 120% ETo for the irrigation of yellow passion fruit 'IAC 273/277¿ to optimize production and improve fruit quality in semiarid conditions.

The aim of this paper was to evaluate the effect of storage temperature on the quality of red pitaya of pulp white, produced in Itajobi city, São Paulo state. The pitayas were stored at room temperature, (21-27 ºC with 44-63% de UR), at 18 ± 1 ºC, with 86-92% RH), 13 ± 1 ºC, with 85-90% RH and at 8 ± 1 ºC, with 85-95% RH. The quality was monitored during storage time through the parameters: fresh weight loss titleble acidity; soluble solids contents; vitamin C, external appearance, pH and fruit firmness. Through the results obtained may be concluded that the temperature at 8 ± 1 ºC it was proportioned the small fresh weight loss; the acidity, soluble solids, pH and fruit firmness were influenced by the storage temperature and storage time, but the temperature at 8 ± 1 ºC it was that occasioned the small change theses parameters. In general, it can be concluded that the temperature at 8 ± 1 ºC it was the best to maintenance the quality of pitaya fruit.

This work aimed to determine over the Brazilian territory extreme air temperatures: maximum (Tx) and minimum (Tn) absolute, using multiple regression techniques, orbital data and climatological. The data of Tx and Tn were observed between the years of 1961 and 1990 in 204 meteorological stations by the National Institute of Meteorology (INMET), and topography information was obtained from the program Shuttle Radar Topography Mission (SRTM). The multiple regression models were validated with the observational data of 30 meteorological stations in different locations than those generated. The statistical analysis was performed using bootstrap techniques. The results showed that the multiple regression model for Tn presented good agreement with the observed data (R² = 0.86) showing no tendencies to overestimate or underestimate Tn. The Tn varied between -12 to 25 °C and the Tx between 31 and 42 °C. For the Tx the results were not as satisfactory. In a first approach, the limits of the Tn can be used for data quality control of the meteorological station. The map of Tn can be used to subsidize research in agroclimatic zoning in the region where these data are not available.

The aim of this paper was to evaluate economical viability and steers performance in grazing receiving supplements with increasing levels of crude protein in the rainy season and its correlation with the pasture's composition. The test animals were 21 not castrated steers supplemented with mineral supplement and multiple supplements with 20% and 40% of crude protein and heavy at the beginning and the end of the experiment, after being submitted to fasting from liquids and solids for 14 hours. For analysis of the economic viability was used the difference between the Total Revenue and Total Cost. The protein supplementation didn't influence of the animals performance in grazing. The average daily gain of animals was 0.849 kg. The content of crude protein in the cell wall was negatively correlated with animal performance, and the structural characteristics of the pasture just the mass of forage showed a strong and positive correlation. This activity in the studied period presented economic viability when considered return on capital of 8% a year.

O objetivo geral deste trabalho foi avaliar e propor a ferramenta da análise de imagem de alta resolução, para os gestores públicos, no monitoramento e observação do sucesso de recuperação de áreas degradadas. Os objetivos específicos foram: i) obter os dados de índice de área foliar (IAF) e abertura de dossel em campo, ii) calcular a relação entre o IAF e a abertura de dossel mensurados em campo, iii) estimar a abertura de dossel através de imagem de alta resolução QuickBird, iv) aplicar a relação dos dados mensurados em campo para se obter os valores de IAF através da imagem, e v) realizar a análise de resíduos dos dados obtidos em campo com os obtidos na imagem, de doze espécies monitoradas no Parque Olhos Ecológico e de Uso Múltiplo D´água. As estimativas da abertura de dossel e do índice de área foliar em doze espécies de Cerrado, utilizando imagens de alta resolução mostraram-se eficazes, tanto pelo erro tolerável obtido (6,9%) a partir dos modelos, quanto pela praticidade que a imagem fornece: atende uma área maior e em uma escala temporal, sendo eficientes para avaliação da execução de projetos de revegetação.

With the aim of evaluating the growth and the development of the watermelon 'Mickylee' cultivated under fertirrigation conducted an experiment in the Universidade Federal Rural do Semiárido, Mossoró- RN, in the period of September the November of 2006. The experimental delineation was of randomized blocks, with the five times of collection of plants, carried through 15, 25, 35, 45 and 55 days after transplant (DAT), with three repetitions. The transplant was carried through to the 14 days after the sowing in spacing 2,0 x 0,50 m. The fertilizations of covering had been carried through daily in fertirrigation, from the nine days after the transplant, following the recommendations of the ground analysis, and obeying stadiums of development of the culture. In each sampling, the characteristics related to the growth of the plant had been evaluated. The biggest accumulation of dry mass of the aerial part occurred from the 25 DAT with the beginning of the fruition, with the fruits participating with 63% of the accumulated total dry mass; the maximum values of total dry mass of the aerial part, of levels and fruits, foliar area, tax of absolute growth, tax of relative growth, liquid assimilate tax and reason of foliar area had been 183,15 g plant-1, 51,86 g plant-1, 117,03 g plant-1, 1,13m2 plant-1, 6,96 g plant-1day-1, 0,16 g g-1 day-1, 13,23 g m-2 day-1 and 0,080 m2 g-1, respectively.

There was evaluated the effect of protein supplementation on the diurnal behavior activities of non-castrated Nellore steers at rainy season, from January to April of 2007. The grazing method was continuous with variable stocking rate. The treatments consisted of mineral supplement with 0% of crude protein (CP) and multiple supplements with 20 and 40% of CP. The behavior activities evaluated were grazing time, idling time, rumination time, bite rate and permanence time of the animals in the trough. The experimental design used was the completely random design, with seven replications. To evaluate the effect of the time of day there was use a split-plot design. With the supplementation the animals reduced at 1.1 hours razing time, offsetting part of the time for the activities of idling and permanence in the trough. The animals did not alter the rumination time, according to supplementation, and maintained the same bite rate, because of the homogeneity of the structural and chemical characteristics of pasture.

This current report aimed to formulate the map of land use and occupation of the small watershed of Jatai's brook localized in Uberaba, MG, based on digital images from CBERS 2. To elaborate this work, permanent preservation areas were mapped, using a digital sorter, and also supervised and identified the occurrences of use conflict, with the Brazilian Forest Code (Law no. 4771/1965) and the Resolution No. 303/02, CONAMA, as legal references. This article also analyzes the maintenance of permanent preservation areas through quantitative parameters, Geographic Information System tracks, and recommended by legislation widths along the water bodies. The results showed a deficit of 190ha preserved areas along the riverbanks, which are not in accordance with the law. The pasture unduly occupies 3.97% of the basin areas in the permanent preservation areas alongside the river, while agriculture occupies 0.20%.