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Search Results: 1 - 10 of 59281 matches for " Carvalho Eduardo Jorge Maklouf "
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ABSOR??O E EXTRA??O DE ALGUNS NUTRIENTES PELA CULTIVAR 'GUAJARINA' DE PIMENTA-DO-REINO
Veloso, Carlos Alberto Costa;Carvalho, Eduardo Jorge Maklouf;
Scientia Agricola , 1999, DOI: 10.1590/S0103-90161999000200026
Abstract: the economic importance of black pepper and the need for information of production sustainability justified this work, to determine the concentration and the distribution of nutrients n, p, k, ca and mg, in several parts of the plant. the experiment was carried out in belém, pará, in a soil classified as yellow latosol (alic haplustox), medium texture, with the following chemical characteristics: ph in h2o = 4.5; om = 17.5 g kg-1; p = 2.0 mg .dm-3 and the exchangeable cations, in mmolc.dm-3, k = 0.48; ca2+ = 4.0; mg2+ =2,0; al3+ = 13.0. the samples were composed of six plants of the cultivar 'guajarina', collected at 28 months after planting, at the production period. the nutrients were extracted in the decreasing order: n> ca> k> mg> p. the amounts of macronutrients exported by the fruits, in kg.ha-1, are: n=11.22; k=6.15; ca=3.84; mg=1.18 and p=1.07.
ABSOR O E EXTRA O DE ALGUNS NUTRIENTES PELA CULTIVAR 'GUAJARINA' DE PIMENTA-DO-REINO
Veloso Carlos Alberto Costa,Carvalho Eduardo Jorge Maklouf
Scientia Agricola , 1999,
Abstract: O potencial econ mico da cultura da pimenta do reino e a necessidade real de pesquisas que sustentem a sua explora o levaram a elabora o deste trabalho que teve por objetivo determinar a concentra o e a distribui o dos nutrientes N, P, K, Ca e Mg, nas diversas partes da planta. O experimento foi conduzido em Belém, PA, em solo classificado como Latossolo Amarelo, textura média, com as seguintes características químicas: pH em H2O = 4,5; M.O = 17,5 g kg-1; P= 2,0 mg dm-3 e os cátions trocáveis, em mmolc.dm-3, K = 0,48; Ca2+= 4,0; Mg2+ =2,0; Al3+ = 13,0. As amostras foram constituídas de um grupo de seis plantas da cultivar Guajarina, coletadas aos 28 meses de idade, na época da produ o. Os resultados obtidos mostraram que os nutrientes extraídos pela pimenta-do-reino obedecem à seguinte ordem: N > Ca > K > Mg > P. As quantidades de macronutrientes exportadas pelos frutos, na colheita em kg.ha-1 foram: N=11,22; K=6,15; Ca=3,84; Mg=1,18 e P=1,07.
Comportamento físico-hídrico de um podzólico vermelho-amarelo cambico fase terra?o sob diferentes sistemas de manejo
Carvalho, Eduardo Jorge Maklouf;Figueiredo, Matozinho de Souza;Costa, Liovando Marciano da;
Pesquisa Agropecuária Brasileira , 1999, DOI: 10.1590/S0100-204X1999000200015
Abstract: the study was carried out in the county of vi?osa, mg, brazil, in the campus of universidade federal de vi?osa (ufv). the objective was to study the physico-hydric behavior of a red yellow cambic podzolic soil terrace phase under different management systems. the experimental design was a completely randomized block design, with five treatments and four replications. treatments were: 1- moldboard plow; 2- disk plow; 3- heavy disk harrow; 4- no tillage; 5- control (fallow). organic matter, texture, bulk density, particle density, total porosity, macro-porosity and micro-porosity, agregates and soil moisture tension curves were measured. results indicate that: soil organic matter is slightly greater in no-tillage and control plots, and reduces in heavy disk plots in the surface 15 cm of the profile; cultivation with heavy machinery increases soil bulk density only slightly in the surface 15 cm of the soil profile; soil tillage increases macroporosity; no-till and control plots show greater aggregate stability; no-tillage plots have greater water holding capacity.
Alumínio e a absor??o de cálcio por mudas de pimenta do reino
Veloso, Carlos Alberto Costa;Malavolta, Eurípedes;Muraoka, Takashi;Carvalho, Eduardo Jorge Maklouf;
Scientia Agricola , 2000, DOI: 10.1590/S0103-90162000000100023
Abstract: a nutrient solution experiment with was carried out in a greenhouse with the objective of verifying the specific effects of calcium and aluminum toxicity on black pepper seedlings. the treatments were set up in three concentrations of calcium (10; 40 and 160 mg l-1) added as cacl2 in combination with three concentrations of aluminum (0; 10 and 20 mg l-1) added as alcl3. 6 h2o. the nutrient solution contained the following ion concentrations in mg l-1: n-no3 (80,5); n-nh4 (10,5); p(1,5); k(39,0); mg(24,0); s-so4(32,0); b(0,5); cu(0,06); fe(5,0); mn(1,0); mo(0,03) and zn(0,10). the treatments with aluminum reduced black pepper growth and the diameter of roots increased. calcium absorption increased with the increase of calcium concentration in the solution, in the absence of aluminum. calcium absorption by roots decreased with the increase of the concentration of aluminum in the solution. aluminum absorption decreased with the increase of the concentration of calcium in the solution.
Resposta de cultivares de pimenta-do-reino aos nutrientes NPK em um Latossolo Amarelo da Amaz?nia Oriental
Veloso, Carlos Alberto Costa;Carvalho, Eduardo Jorge Maklouf;Malavolta, Eurípedes;Muraoka, Takashi;
Scientia Agricola , 2000, DOI: 10.1590/S0103-90162000000200023
Abstract: the present work was developed with the objective of establishing response curves of black pepper to nitrogen, phosphorus and potassium in an oxisol (yellow latosol, dystrophic) in senador josé porfírio county, km 35 of the transamazonian road, in brazil. the levels of nitrogen, applied manually every year were (0; 40; 80; 120 and 160 kg ha-1 n) in the urea form, five phosphorus levels (0; 30; 60; 90 and 120 kg ha-1 p2o5) in the form of triple superphosphate and five potassium levels (0; 30; 60; 90 and 120 kg ha-1 k2o) in the form of potassium chloride. the experimental design consisted of blocks with three replicates, being the treatments disposed as an incomplete factorial. the spacing was of 3.0 m between lines and 2.5 m between plants with six useful plants per plot. the results evidenced positive response of nitrogen in relation to black pepper grain yield with the application of 72 and 78 kg ha-1 of n, for cultivars cingapura and bragantina, respectively. only cultivar guajarina responded to the phosphorus application. growing levels of k2o, reduced the present potassium content in the foliar tissue of the peppers. the potassium addition favored the increase of the production of grains with the application of 42, 13 and 22 kg ha-1 of k2o, for the cingapura, bragantina and guajarina cultivars, respectively.
Alumínio e a absor o de cálcio por mudas de pimenta do reino
Veloso Carlos Alberto Costa,Malavolta Eurípedes,Muraoka Takashi,Carvalho Eduardo Jorge Maklouf
Scientia Agricola , 2000,
Abstract: Um experimento com solu o nutritiva foi conduzido em casa de vegeta o com o objetivo de verificar os efeitos da nutri o de cálcio na toxicidade de alumínio em mudas de pimenta do reino. Os tratamentos constituíram-se de três concentra es de cálcio (10; 40 e 160 mg L-1) adicionados como CaCl2 em combina o com três concentra es de alumínio (0; 10 e 20 mg L-1) adicionados como AlCl3.6H2O. A solu o nutritiva continha as seguintes concentra es dos íons expressos em mg L-1: N-NO3 (80,5); N-NH4 (10,5); P(1,5); K(39,0); Mg(24,0); S-SO4(32,0); B(0,5); Cu(0,06); Fe(5,0); Mn(1,0); Mo(0,03) e Zn(0,10). Os tratamentos com alumínio retardaram o crescimento das mudas de pimenta do reino, induziram sintomas de toxicidade de alumínio na parte aérea e principalmente aumentaram o diametro das raízes. O acúmulo de cálcio aumentou com o incremento da concentra o de cálcio na solu o na ausência de alumínio, nas raízes o conteúdo de cálcio foi diminuído com o aumento da concentra o de alumínio na solu o. A absor o de alumínio diminuiu com o aumento da concentra o de cálcio na solu o.
Resposta de cultivares de pimenta-do-reino aos nutrientes NPK em um Latossolo Amarelo da Amaz nia Oriental
Veloso Carlos Alberto Costa,Carvalho Eduardo Jorge Maklouf,Malavolta Eurípedes,Muraoka Takashi
Scientia Agricola , 2000,
Abstract: O presente trabalho foi desenvolvido, com o objetivo de estabelecer curvas de resposta da pimenteira-do-reino a nitrogênio, fósforo e potássio, num Latossolo Amarelo distrófico (Oxisol), no município de Senador José Porfírio, km 35 da rodovia Transamaz nica. As doses de nitrogênio, aplicadas manualmente a cada ano foram: (0; 40; 80; 120 e 160 kg ha-1 de N) na forma de uréia, cinco doses de fósforo (0; 30; 60; 90 e 120 kg ha-1 P2O5) na forma de superfosfato triplo e cinco doses de potássio (0; 30; 60; 90 e 120 kg ha-1 K2O) na forma de KCl. Utilizou-se o delineamento em blocos ao acaso, com três repeti es, sendo os tratamentos dispostos em esquema fatorial incompleto.O espa amento foi de 3,0 m entre linhas e 2,5 m entre plantas, com seis plantas úteis por parcela. Os resultados evidenciaram resposta positiva de nitrogênio com rela o a produ o de gr os de pimenta do reino com a aplica o de 72 e 78 kg ha-1 de N, para as cultivares Cingapura e Bragantina, respectivamente. Somente a cultivar Guajarina, respondeu à aplica o de fósforo. Doses crescentes de K2O, reduziu os teores de potássio presentes no tecido foliar das pimenteiras. A adi o de potássio favoreceu o aumento da produ o de gr os com a aplica o de 42, 13 e 22 kg ha-1 de K2O, para as cultivares Cingapura, Bragantina e Guajarina, respectivamente.
RESPOSTA DO ABACAXIZEIRO à ADI??O DE NITROGêNIO, POTáSSIO E CALCáRIO EM LATOSSOLO AMARELO DO NORDESTE PARAENSE
VELOSO, CARLOS ALBERTO COSTA;OEIRAS, ANTONIO HENRIQUE LOPES;CARVALHO, EDUARDO JORGE MAKLOUF;SOUZA, FRANCISCO R. SARMANHO de;
Revista Brasileira de Fruticultura , 2001, DOI: 10.1590/S0100-29452001000200040
Abstract: this work was carried out between april 1997 and november 1998, with the objective of evaluating the effect of the nitrogen and potassium rates and liming levels on pineapple yield and fruit quality. the treatments consisted of four levels of nitrogen (0; 6; 12 and 18 g/plant of n) in the urea form; four potassium levels (0; 9; 18 and 27 g/plant of k2o) in the form of potassium chloride and two levels of dolomite lime (0 and 1 t/ha). the experimental design was randomized blocks with three replications, being the treatments arranged in split plots (4 x 4 x 2, corresponding to four doses of nitrogen, four potassium levels and two levels of lime). in the plots lime levels were applied and in the subplots combinations of the levels of nitrogen and potassium were applied. each subplot was composed of 60 plants of cultivar "pérola", with 32 plants used for sampling ", spaced 90 cm in double arrays, 40 cm between the simple lines and 30 cm between plants in the same line. it was verified that liming didn't influence pineapple production, but it produced a better use of the potassium, with the addition of calcium and magnesium in the soil. the application of urea did not have any effect on the fruit production and weight, in the presence of potassium levels it elevated the yield of the pineapple juice. the potassium addition in the form of potassium chloride increased the production with the level of 22 g/plant of k2o, being expected a maximum production of 79 t/ha of fruits with crown. the diameter and length of the fruit increased with the potassium levels and the acidity of the fruit decreased lineally. the levels of ca, mg, n and k, in the leaves increased with application of the lime of the nitrogen and potash fertilizers.
RESPOSTA DO ABACAXIZEIRO à ADI O DE NITROGêNIO, POTáSSIO E CALCáRIO EM LATOSSOLO AMARELO DO NORDESTE PARAENSE
VELOSO CARLOS ALBERTO COSTA,OEIRAS ANTONIO HENRIQUE LOPES,CARVALHO EDUARDO JORGE MAKLOUF,SOUZA FRANCISCO R. SARMANHO de
Revista Brasileira de Fruticultura , 2001,
Abstract: O presente trabalho foi desenvolvido no período compreendido entre abril de 1997 e novembro de 1998, com o objetivo de avaliar o efeito da aplica o do nitrogênio e do potássio em diferentes níveis de calagem sobre a produtividade e qualidade do fruto do abacaxizeiro, num Latossolo Amarelo distrófico (Oxisol), no município de Capit o Po o, localizado na mesorregi o do nordeste paraense. Os tratamentos constaram de quatro doses de nitrogênio (0; 6; 12 e 18 g/planta de N) na forma de uréia; quatro doses de potássio (0; 9; 18 e 27 g/planta de K2O) na forma de cloreto de potássio e duas doses de calcário dolomítico (0 e 1 t/ha). Utilizou-se o delineamento em blocos ao acaso, com três repeti es, sendo os tratamentos dispostos em esquema de parcelas subdivididas, 4 x 4 x 2, correspondendo a quatro doses de nitrogênio, quatro doses de potássio e duas doses de calcário. Na parcela, ficaram as doses de calcário e, na subparcela, as combina es das doses de nitrogênio e potássio. Cada subparcela foi composta de 60 plantas, com 32 plantas úteis da cultivar "Pérola", espa adas 90 cm entre fileiras duplas, 40cm entre as filas simples e 30cm entre plantas. A calagem n o aumentou a produ o e o teor de K nas folhas. Além disso, diminuiu o tamanho dos frutos. A aduba o nitrogenada n o teve efeito na produ o e peso do fruto com coroa; na presen a das doses de potássio, elevou o rendimento de suco do abacaxi. A adi o de potássio, na forma de cloreto de potássio, aumentou a produ o com a dose de 22 g/planta de K2O, sendo que foi obtida a produ o máxima de 79 t/ha de frutos com coroa. O diametro e comprimento do fruto aumentaram com as doses de potássio, e a acidez do fruto decresceu linearmente. Os teores de Ca, Mg, N e K nas folhas aumentaram com a aplica o de calcário e de adubos nitrogenados e potássicos.
Müllerian adenosarcoma of the uterus with sarcomatous overgrowth following tamoxifen treatment for breast cancer
Carvalho, Filomena Marino;Carvalho, Jesus Paula;Motta, Eduardo Vieira da;Souen, Jorge;
Revista do Hospital das Clínicas , 2000, DOI: 10.1590/S0041-87812000000100004
Abstract: müllerian adenosarcoma with sarcomatous overgrowth presented by a 52-year-old female patient after adjuvant tamoxifen treatment for breast carcinoma is described. the diagnosis was made on histological basis after curettage and complementary total hysterectomy with bilateral salpingo-oophorectomy. the immunohistochemical study showed high expression of estrogen receptors in the epithelial component of the lesion and irregularly positive findings in the stroma. the proliferative activity evaluated by ki-67 immunoexpression was higher in the stroma than the epithelium. some of the stromal cells showed rhabdomyoblastic differentiation. the association of tamoxifen use and development of mesenchymal neoplasms is discussed.
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