The experiment was carried out to evaluate the nutrients content in leaves of lettuce intercropped with carrot in strip-intercropping under different planting densities of component crops. The experimental design used was of randomized complete blocks in a 4 x 4 factorial scheme with three replications. The treatments consisted of the combination of four lettuce-planting densities (40%, 60%, 80% and 100% of the recommended sole crop density - RSCD) with four carrot-planting densities (40%, 60%, 80% and 100% of the RSCD). Evaluations for P, Na, Ca, Mg, and K contents were made in the lettuce leaves. There was a significant interaction between lettucedensities and carrot-densities on P content in lettuce leaves. Higher contents of Na and Ca (58.40 and 7.58 mg/plant) were observed in the lettuce-densities of 52% and 47% of the RSCD. The contents of Na and K held constant with increasing carrot-densities. Higher contents of Mg (30 and 15 mg/plant) were observed in the density of 40% of the RSCD both in lettuce and carrot crop.

The decrease in pore that are submitted to the certain pressure, causes an increase soil bulk density, causing the compactação process, affecting the ideal development of crop root system. Consequently the present study has as obejective to evaluate the effects of different compaction levels in two soils with differrent textural classes on the yilol of aerial biomass and root of radish. The experiment was carried out in a green house at the, UFRPE, where two samples of soils from 0-20 cm with the following textural classes: sand clay loan (NITOSSOLO) compacted to bulk densities of 1,05; 1,26 and 1,47 g cm-3 and sandy (PLANOSSOLO) compacted to densities of 1,54; 1,76 and 1,98 g cm-3. A severe reduction was observed in the production of bulbs a function of the levels compaction where in the sand clay loan texture there was no development of the bulbs in the density of 1,47 g cm-3, differing from at observed in the sandy texture soil, where the largest density (1,98 g cm-3), showed development of the bulbs. The compaction in subsurface alters the distribution of the root system of he crop along the profile of the soils, without decrease in the production of roots.

Using data from basic speeds of infiltration (VBI), obtained in soils of Coastal Tabuleiros the city of Mal. Deodoro, for aluminum and speed of infiltration for projects (VIP), calculated using the techniques Fashion (Mo), Medium Harmonic (MH), Geometric (MG), simple arithmetic (MAS), Quadrática (MQ), Cúbica ( MC) and Biquadrática (MB), in addition to the Median (Md), was carried out studies on water-saving irrigation by sprinkling compared to the volumes obtained on the basis of these techniques and there is the potential for the runoff. It was the conclusion that the economy of water increased in the following order of technical definition of VIP: MB, MC, MQ, BUT, MG, Md, MH, Mo. Thus, the technical definition of the VIP which saves more water for irrigation is the Fashion.

Due to a great amount of environmental differences between in vitro and ex vitro conditions, the acclimatization phase of plantlets is one of the essential points to guarantee the success in obtaining micropropagated plants. Using a substrate with chemical and organic composition is important on this phase, because it will influence in the nutritional state of the seedlings. The present paper aimed to evaluate the effects of different substrate on acclimatization of fig plants 'Roxo de Valinhos'. It were selected uniform plantlets within a 5 cm of height which were transferred to the greenhouse, with an intermittent mist system, with 50% mesh of shadow by sombrite® planted in stereo foam trays where were submitted to the following treatments: Plantmax®; carbonized rice husk; soil in combination with Osmocote®; manure (3:1:1); NPKMg. The experimental design adopted was randomized blocks in factorial scheme and the evaluation was done one hundred and twenty days after the acclimatization by the following characteristics: plant high (cm), number of leaves/plant, dry weight of aerial part and roots and total weight (g/plant). As results, it was verified that on the acclimatization of fig plantlets 'Roxo de Valinhos' using of substrate soil + carbonized rice husk+ manure promotted highest number of leaves and largest weight of aerial dry matter were obtained Plantmax® substrate without any addition of fertilizers.

The work was carried out in order to evaluate the distribution of water applied to the plots, pointing out possible causes of waste and suggest solutions to the optimal use of irrigation water. Worked up with flow tests to determine the coefficients of Distribution Uniformity (CUD) and Christiansen (CUC). Obtained is then the graph of uniformity in the profiles of three-dimensional distribution of water in the plots. It also studied the relationship between the flow rates and actual project and the possible causes that led to problems. The results showed that the highest flow rates were observed at the beginning of the lines of issuers and end of the line of derivation. It was also observed that the sheet of water applied is largely of times greater than blade of water designed, presenting, however, points of disability where the blade was less than required in the project.

La variabilidad en guayaba en las colecciones de germoplasma en Brasil es todavía bastante restricta, existiendo muchas "landraces" a ser recolectadas y caracterizadas. La necesidad de diversificar y aumentar la disponibilidad de genotipos productivos y de buena calidad, hizo con que el Instituto Agronômico de Pernambuco (IPA) introdujera en la "Chapada do Araripe", en la región semiárida del Estado de Pernambuco, una colección de germoplasma de guayabo conducida bajo régimen de sequío. La colección es constituida de 21 accesos (IPA B-22.1, IPA B-15.1, IPA B-14.3, IPA B-14.2, Patillo 1.1, Patillo 1.2, Patillo 1.3, Patillo 2.1, Patillo 2.3, Red Selection of Florida 1, Ruby Supreme.2, Ruby Supreme.3, Surubim.3, EEF.3, IPA B-38.3, IPA B-38.1, White Selection of Florida.1, White Selection of Florida.2, Pentecostes.3, Grande Vermelha.2 e Red Selection of Florida.2) originarios de varias partes de Brasil. Fueron observados descriptores de caracterización y evaluación. Debido a su rusticidad, el guayabo se adaptó a la "Chapada do Araripe" y la colección presentó una gran variabilidad entre las características evaluadas. Considerando la doble utilización de ese germoplasma, se constató que los accesos de pulpa roja para la agrindustria Patillo2.3, Ruby Supreme.3, e IPA B-15.1 se han destacado por sus buenas producciones y Red Selection of Florida.1, por aliar buena producción a frutos grandes y de pulpa espesa. Entre los accesos destinados exclusivamente al consumo in natura, se debe destacar la 'Grande Vermelha.2' por las mismas razones.

The hulls and the presscake, the two most important residues of castor processing and industrialization, are traditionally used as organic fertlizer. This study aimed to evaluate these residues as organic fertilizers in vases in order to optimize doses and promove the best use of their chemical properties. A trial was run in a randomized block design with four replications and eight treatments: four doses of castor presscake (0,5; 1,0; 1,5 e 2,0 t/ha) and four doses of castor hulls (0,5; 1,0; 1,5 e 2,0 t/ha) with addition of nitrogen fertilizer. Seeds of CSRN 393 castor bean line were planted in 22 liters vases. At 60 days after emergence, values of height, stem diameter, leaf area and total dry weight were taken. Castor bean presscake was showed to be a good organic fertilizer, mainly due to its high N content, however castor hulls was showed to be inappropriate as organic fertilizerdue to its high C/N ratio that cause nitrogen deficiency.

The objective of this experiment was to evaluate the reply of the scarlet culture (Solanum gilo Raddi) irrigated submitted the different applied doses phosphate in the plantation hollow. The used experimental delineation was of randomized blocks, being tested four levels of simple superphosphate (0, 1.000, 2.000, 3.000 kg ha-1). The phosphate fertilization in the plantation caused an increase in the following characteristics total of fruits to plant, commercial weight of fruits to plant, not commercial weight of the fruits to plant and productivity to fruits to hectare. The doses of phosphate that got a bigger efficiency to get a good productivity in the conditions of Cassilândia-MS, was of 1590 kg ha-1 of simple superphosphate that is the equivalent 286,2 kg of P2O5.

The Cereus jamacaru it is a cactaceae plant very used in food of cows, caprines and sheeplike in the semi-arid of Brazilian Northeastern. The pH, soluble solids, ashes, total solids, moisture, insoluble solids and the yield of Cereus jamacaru samples were determined. Were utilized the bunch of an only plant, this went separates and processes as three types of samples; pulp of the storaging pancreas of water (central stalk), pulp of vascular cylinder of end bunch and of half of bunch (part between the central stalk and the epicarp of the plant). The resultswere statiscally evaluated according to completely randomize design, from which were verified that had significant difference among the samples as to the pH, ash, totals solids, moisture and insoluble solids. Were observed that the soluble solids (ºBrix) the pulps of vascular cylinder of half and the end the bunchs had the sames, had been less to the of pulp of central stalk. The largest yield was of the pulps of the vascular cylinder, about 75%.

The aroeira (Myracroduon urundeuva Fr All) is a Anacardiaceae of natural occurrence since the Caatinga ties Argentina and Paraguay, being found in vegetal formations of caatinga, closed and forests pluvial. The species and to cultivate if hold of different form to the salinity, that is, each species of plant or to cultivate tolerates until certain salinity (Salinity threshold - SL), without reducing its potential income. This work had the objective to evaluate the germination if seeds of aroeira in different levels of salinity. One used different Chloride concentrations of sodium and calcium Chloride in the following amounts: 6,4g. 12,8g, 19,2g. The salinity intervened with all the parameters evaluated in the test of germination of the aroeira, to the measure that increased - the concentration of you leave yourself, had decrease in the analyzed 0 variable, being that, from 19,2g the germination of this culture sufficiently is harmed.