Aiming at to characterize a population of angry bean (Capparis flefluosa) they were appraised 30 plants of each category (trees, adult pruned and regeneration), disposed to the case in a palm area. They were appraised the height of the plant, diameter of the height of the chest, diameter of the height of the base, presence of floral buttons, florescimento, fructification in you hoist. For interpretation of the results one was used analyzes of variance, with randomized designe consting. The medium height of the appraised plants was of 5,1 m, diameter of the height of the chest of 16,8 cm, diameter of the height of the base 18,6 cm and diameter of the cup 5,3 m. you hoist presented Them floral buttons between January and February, they bloomed between January and March and they fructified between February and March. The chemical composition among the categories presented a medium tenor for dry matter (MS), crude protein (PB), fiber in neutral detergent (FDN), fiber in acid detergent (FDA), mineral matter (MM), organic matter (OM), hemicelulose (HEM), cellulose (CEL) and lignin (LIG), of 49,5%; 15,4%; 54,1%; 35,6%; 8,9%; 91,1%; 18,4%; 27,6% and 7,2%, respectively. The obtained results indicated that the angry bean possesses similar chemical composition the legumes herbage, being considered an alternative for the exploration in consortium systems seeking to the animal feeding in periods of shortage of forage of the area.

Objetivou nesta pesquisa testar o efeito da poda de topo no rebaixamento da copa e poda da saia na recuperação da tangerineira 'Ponkan' com 12 anos de idade, altura de 4 metros, espaçadas de 6 x 4 m e enxertadas sobre limoeiro 'Cravo'. O experimento foi conduzido na Fazenda Vito Crincoli localizada no município de Perdões, MG. O delineamento experimental utilizado foi em blocos ao acaso, em esquema fatorial 4 x 2, sendo poda do topo (sem poda, poda a 3,0; 2,5 e 2,0m) e poda da saia (sem e com a poda) com quatro repetições. A parcelaútil foi constituída de três plantas. As podas drásticas de topo prejudicaram a primeira produção, contudo a partir do segundo ano da poda, as plantas apresentaram boa recuperação. Essa afirmativa foi confirmada na terceira colheita, quando os diferentes tipos de podas do topo não se diferenciaram na produtividade, sendo que o tratamento com poda da saia foi superior ao sem poda. Os diferentes tipos de poda não prejudicaram a qualidade de frutos de tangerineira 'Ponkan' nas três safras subsequente as podas. Após o terceiro ano as plantas que sofreram podas mais severas produziram frutos com peso superiores, demonstrando a viabilidade da poda na recuperação da qualidade dos frutos.

An experiment in greenhouse with maize culture was carried through to evaluate the performance of Acithiobacillus inoculated in biofertilizer, with natural fosfato and sulphur. The biofertilizer was used as phosphorus fertilization in one argisoil degraded. The plants had been fertilized with four concentration of the biofertilizer during 50 days in two successive cultive. The soil fertility was evaluated, after the cultive as well as nutrition and development of the plants. The increase in the concentration of P-soluble in soil induced for the fertilization with the biofertilizer occurred in the second cultive. The application of the biofertilizer did not promote acidification of the soil however it increased the sulphur concentration. The rate of application of the biofertilizer for supply of 160 kg of P ha-1 revealed as of better performance in the supply of phosphorus and development of the plant.

The lettuce is a leafy vegetable and when it is cultivated in regions of intense solar radiation it can¿t develop it's full genetic potential. In this direction this work had the objective of evaluating the productivity of the Butterhead lettuce cultivar using different types of screens in the region of the Submédio São Francisco. The experiment was carried out in raised planting beds, using black screens with 30 and 50% of shading, white screens and in the open sun. The statistical design was the factorial 2x4 and the means were compared by the Turkey test at 5% of probability. In each treatment a termohigrometre and temometers at 40 cm from the ground were coupled with a black globe to get the radiant thermal load, the temperature of the air and the humidity index. At the end of the trial chlorophyll, the diameter of the head, plant height, the number of leaves per plant, the leaf area, fresh and dry weight of plants were collected. The screens affected the parameters analyzed and the treatment PS and TB of shading were the best for commercial parameters.

A field experiment was developed in the period of April of 2000 to May of 2002, at the Experimental Station of Jiqui pertaining to the Empresa de Pesquisa Agropecuária do Rio Grande do Norte - EMPARN, Parnamirim city, state of Rio Grande do Norte. The work had as objective to evaluate the effects of nitrogen and potassium applied through irrigation water on the vegetative behavior and productive of green dwarf coconut tree (Cocos nucifera L). The treatments had consisted of the combination through the experimental matrix of Pan Puebla III, 5 doses of N and 5 doses of K2O both oscillating of 135 the 2565g plant -1 year -1 derived of the urea and potassium chloride. The used experimental design was of blocks at random with 4 repetitions and 5 plants for plots totalizing 40 experimental units. The plantation was made in the triangular spacing of 7.5 m between plants and 7.5 m between lines. During the 5th year of culture, from April of 2001 to May of 2002 was quantified the number of fruits in the 13 harvest carried out. The referring variables to the vegetative development, height and circumference of stem, diameter of the top and leaf number, had been measured in May of 2002, in the end of the experiment. The stem circumference increased linearly with the increase of the doses of N and of quadratic form with the doses of K with the biggest value for the dose of 1350 g plants -1 year-1. The leaf number answered only the nitrogen applications. The growth in stem height had influence of N and K, however, data did not adjust to no mathematical model. The diameter of the top of the green dwarfed coconut palm did not suffer significant interference of no applied fertilizer through irrigation water. The number of fruits increased quadratically with the N and K doses. The maximum physical efficiency of the production, 154.75 fruits plants -1 year -1, it was reached with the doses of 1437 g plants -1 year -1 of N and 1553 g plants -1 year -1 of K.

The aim was to survey the floristic, structure and to characterize data of Capparis flexuosa L. in an area in the semi-arid of Paraiba State. Ninety-nine contiguous parcels of 10 m X 10 m have been established for measured standing specimens whose trunk measured ¿ 3 cm of diameter at ground level (DNS) and whose total height was ¿ 1 m. The index of diversity of Shannon-Wiener (H') and equability of Pielou (J'), density, frequency, dominance, Value of Covering (VC), Value of Importance (VI), diameter-class and height-class were calculated. It was verified that plant mean density was 2879 ind.ha-1, with 2850 individuals belonging to 22 species, 18 genera and 12 families. H' = 1.75 nats.ind-1. The value J' = 0.57 showed an ununiformity in the species distribution in the studied parcels. Capparis flexuosa was the fourth species with greatest relative density (6.04%) and relative frequence (12.43%) indicating a good distribution in the studied area; the first in relative dominance (26.03%), the third in VC (16.03%) and the fourth in VI (14.83%), suggesting that this species is well adapted to the edafoclimatic conditions of the studied area. We observed that 1.975 individuals were found between 3-6 cm of diameter and 2716 between 2.01 - 5 m height.

With the objective in determine the contribution of the clay and of the organic matter for CTC of the soils of the State of Alagoas, with base in data of the rising exploratory-recognition done by JACOMINE et al.,(1975) 265 representative samples were used of the horizons A and B of 64 profiles of the different areas of the State. The CTC of the fraction clay corrected by the organic matter is presented by area and in the general for the State: Coast CTCargila = CTCsolo - (% C x 4,4) /% clay x 100; Forest CTCargila = CTCsolo - (% C x 4,7) /% clay x 100; Rural CTCargila = CTCsolo - (% C x 5,6) /% clay x 100; Interior CTCargila = CTCsolo - (% C x 4,7) / %argila x 100; São Francisco CTCargila = CTCsolo - (% C x 3,1) /% clay x 100; General CTCargila = CTCsolo - (% C x 4,6) /% clay x 100;. It is presentedre a presentative model of equation for determination of CTC of the fraction clay (Targ) and of 1 gram of carbon (TC) (cmolc clay kg-1) for the State of Alagoas: Targ (Y) = 17,27 - 1,0976ArgB + 0,01276ArgB2 + 4,9748TB - 0,05526ArgB.TB (R2 = 0,989) and TC (Y) = 1,2189 - 0,0531ArgA + 0,0722ContA (R2 = 0,664). It's presented average, medium, minimum, maximum, standard deviation, asymmetry and curtose of the clay tenor, organic carbon, CTC and contribution of the organic carbon for area and in the general for the State, being also applied for CTC of the clay (Targ) and CTC of 1 gram of carbon (TC).

The experiment was conducted at the Soil Laboratory of the Center for Agrarian Sciences, Federal University of Alagoas to evaluate the effect of different sources of phosphorus, with different levels of humidity on the diffusive flux of phosphorus in soil samples from the State of Alagoas. Samples of four soils from different locations were used. The P sources used were the KH2PO4, Ca(H2PO4)2 and NH4H2PO4, considering two levels of humidity (40% and 80% of field capacity of soil). The test consisted of a factorial arrangement (4 x 3 x 2), corresponding, respectively, the four soils, three sources of phosphorus and two levels of moisture, with four replications in randomized blocks. As experimental units were used rings of PVC. The dose of phosphorus was 50% of maximum capacity for adsorption of phosphorus. To evaluate the diffusive flux, were used anion-exchange paper (PA). The PA was prepared using a filter paper immersed in solution of FeCl3.6H2O and then transferred to a solution of NH4OH. After dried, the leaves were cut into strips and placed in the soil samples. The estimate of the diffusion was performed by quantification of phosphorus adsorbed to the PA. In general, the diffusive flux increased with the decrease in clay content of soils and the higher water content and the source NH4H2PO4 favored greater diffusion.

An experiment was carried out at a greenhouse of Plant Science Department of the Universidade Federal Rural do Semi-Árido (UFERSA), Mossoró-RN, in the period of May to June of 2006, with the evaluate the agronomic performance of beans mungo in function of their times of decomposition of scarlet starglory incorporated. A completely randomized desing with six treatments and five replications. The treatments consist of: T1 - 130g pot-1 of scarlet starglory in green base fresh with twenty-eight days incorporated; T2 -130g pot-1 of scarlet starglory in green base fresh with twenty one days incorporated; T3 - 130g pot-1 of scarlet starglory in green base fresh with fourteen days incorporated; T4 - 130g pot-1 of scarlet starglory in green base fresh with seven days incorporated; T5 - 130g pot-1 of scarlet starglory in green base fresh with zero days incorporated; T6 - Control (no Fertilized soil). The beans mungo cultivar planted was green gold. The evaluated traits were: plant height, dry mass and yield of grains. All the times traits were significantly affected by the amounts of scarlet starglory incorporated. Height mean value for plant height, dry mass and yield of grains were obtained in the amount of scarlet starglory incorporated of 28 days.

Objective of this study quality of lettuce cultivars under saline stress, in an experiment carried out in a greenhouse. The experiment was carried out in a completely randomized design, in scheme factorial 5 x 5, with three repetitions. The treatments were five levels of salinity of irrigation water (0.5; 1.5; 2.5; 3.5 and 4.5 dS m-1) and five lettuce cultivars (Mônica SF31, Grandes Lagos 659, Veneranda, Folha Roxa Quatro Estações e Stella). The quality characteristics evaluated in the lettuce leaves were: pH, total soluble solids (TSS), titrable total acidity (TTA) and vitamin C. The analysis of the results allowed concluding that the interaction between the factors salinity and cultivars was significant. The parameters of quality were significantly affected by salinity, however, the intensity of this effect varied with the cultivar used.