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Search Results: 1 - 10 of 40062 matches for " Anarlete U;Alves "
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Lima beans production and economic revenue as function of organic and mineral fertilization
Alves, Adriana U;Oliveira, Ademar P de;Alves, Anarlete U;Dornelas, Carina SM;Alves, Edna U;Cardoso, Edson A;Oliveira, Arnaldo Nonato P de;Cruz, Iordan da S;
Horticultura Brasileira , 2008, DOI: 10.1590/S0102-05362008000200024
Abstract: lima beans (phaseolus lunatus l.) are alternative food and income sources for the population of northeastern brazil. in this region, lima beans are consumed either as green or dry grains. however, low yields have been observed, a challenge that could be overcome by adequate organic and mineral fertilization. this work intended to assess lima beans yield, cultivar raio de sol, as affected by doses of cattle manure in the presence and absence of mineral npk fertilization. the experiment was carried out at the federal university of paraíba, brazil, from september, 2004 to may, 2005. the experimental design was of randomized blocks, with four replications, 40-plant plots, spaces of 1.00 x 0.50 between and within rows, respectively. treatments were displayed in a 6 x 2 factorial, corresponding to manure doses (0, 10, 20, 30, 40 and 50 t ha-1) and presence and absence of npk. green and dry grain, and pod yields were analysed, as well as the economic revenue for pods and dry grains. to measure the economic efficiency, pods and dry grains were employed as the exchange units. maximum pod yields (12.6 and 11.2 t ha-1) were achieved with 21.4 and 23 t ha-1 of manure, with and without npk, respectively. highest green grain yields (11.1 and 9.9 t ha-1) were obtained with 21.3 and 22.9 t ha-1 of manure, with and without npk, respectively. the highest yield of dry grains (3.5 t ha-1) was obtained with 26.6 t ha-1 of manure combined with npk. in the absence of npk, the use of cattle manure resulted in an average dry grain yield of 2.0 t ha-1. the maximum economic efficiency for pod production was reached with 17 and 18.6 t ha-1 of manure, with predicted net incomes of 2.88 and 3.36 t ha-1 of pods, in the presence and absence of npk, respectively. for dry grains, the maximum economic efficiency was achieved with 23 t ha-1 of manure, in the presence of npk, which produced a net revenue of 2.12 t ha-1 of dry grains.
Rendimento de maxixe adubado com doses de nitrogênio
Oliveira, Ademar P de;Oliveira, Arnaldo Nonato P de;Alves, Anarlete U;Alves, Edna U;Silva, Damiana F da;Santos, Rodolfo R;Leonardo, Francisco de Assis P;
Horticultura Brasileira , 2008, DOI: 10.1590/S0102-05362008000400022
Abstract: the effect of increasing nitrogen doses was evaluated on the gherkin yield, cv. nordestino. this study was carried out on the period from may to september 2006, at the universidade federal da paraíba, in areia, paraiba state, brazil, in an experimental design of randomized blocks with six treatments (0; 50; 100; 150, 200 and 250 kg ha-1 n) and four replications. twenty plants per plot were used, on a spacing of 2 x 1 m. fruit average mass, number and fruits production per plant, and yield of fruits were evaluated. fruits average mass reached the maximum value of 21 g using the dose of 155 kg ha-1 of n. the maximum number (21 fruits) and the maximum fruits production per plant of gherkins (469 g) were reached with 153 and 187 kg ha-1 of n, respectively. the dose of 188 kg ha-1 of n was responsible for the maximum yield of 12.7 t ha-1 of fruits. for the highest maximum economic efficiency the dose of 183 kg ha-1 of n was responsible for the yield of 12.7 t ha-1 of commercial fruits, meaning a development of 9.4 t ha-1 in the fruits productivity, relative to n absence.
Resposta do quiabeiro às doses de fósforo aplicadas em solo arenoso
Oliveira, Ademar P. de;Dornelas, Carina Seixas M.;Alves, Adriana U.;Alves, Anarlete U.;Silva, Jandiê Araújo da;Oliveira, Arnaldo Nonato P. de;
Horticultura Brasileira , 2007, DOI: 10.1590/S0102-05362007000200010
Abstract: the influence of phosphorus fertilization on yield of okra, cv. santa cruz was evaluated. the research was carried out in the experimental design of randomized blocks, with five treatments (0; 44; 88; 132 and 176 kg ha-1 of p), and four replications. the maximum number of fruits per plant (43) was obtained with the maximum level of 176 kg ha-1 of p. the estimated maximum yield of commercial fruits (38.6 t ha-1), was related to 139 kg ha-1 of p. the application of 137 kg ha-1 of p provided the highest economical income, yielding 38.3 t ha-1 of commercial fruits, with an increment of fruits of 17.4 t ha-1. the most economic level represented 98% of that responsible for the maximum yield, indicating that the okra responded economically to the use of p in sandy soil and, of the p level responsible for the maximum commercial yield of fruits were related to 40 mg dm-3 of available p in soil (mehlich 1), and the level responsible for the highest economic income was related to 38 mg dm-3.
Produtividade da pimenta-do-reino em fun??o de doses de esterco bovino
Oliveira, Ademar P;Alves, Edna U;Silva, Jandiê A;Alves, Anarlete U;Oliveira, Arnaldo Nonato P;Leonardo, Francisco AP;Moura, Mácio F;Cruz, Iordam S;
Horticultura Brasileira , 2007, DOI: 10.1590/S0102-05362007000300017
Abstract: although paraíba state, has shown aptitude for black pepper cultivation, being possible to recommend it as an alternative for agricultural diversification in that area, no recommendation for black pepper crop fertilization exists. this research was conducted at the universidade federal da paraíba, in areia, paraíba state, brazil, to evaluate black pepper genotypes submitted to increasing levels of cattle manure. the experimental design was of randomized blocks, with treatments in the factorial 5 x 3 scheme. the first factor was represented by cattle manure levels (0; 4; 8; 12; and 16 kg plant-1) and the second factor, by the black pepper genotypes (ia?ará, cingapura and bragantina), with four replications. black pepper production increased with the use of cattle manure in environmental conditions. the highest pepper yield per plant of bragantina (1012 g), ia?ará (1269 g), and cingapura (627 g) were obtained with 7.3; 8.6; and 7.0 kg of cattle manure/plant, respectively. the estimated yields of dry pepper were of 6.5; 8.9; and 7.8 kg plant-1, responding to maximum yields of 358, 793 and 204 g plant-1 for bragantina, ia?ará and cingapure genotypes, respectively.
Yield and phenology of yam as affected by the physiological rest period of seed-rhizomes
Oliveira, Ademar P de;Moura, Márcio F de;Alves, Edna U;Alves, Anarlete U;Oliveira, Arnaldo Nonato P de;Leonardo, Francisco de Assis P;Cruz, Iordam da S;
Horticultura Brasileira , 2008, DOI: 10.1590/S0102-05362008000200005
Abstract: the objective of this work was to evaluate the effects of the rest period of seed-rhizomes in the phenology and yield of yam da costa (dioscorea cayennensis). the experiment was carried out in field conditions at the federal university of paraíba, in areia, brazil, from january to december 2004, in an ustpsamment soil. a completely randomized block design was used to test three treatments, 60-, 80-, and 100-day seed-rhizome rest periods, with seven replications. plant emergency was evaluated every ten days from 40 to 90 days after planting (dap), as well as plant height, evaluated up to 80 dap. the average mass of commercial rhizomes and the yield of commercial and seed-rhizomes were also assessed. at 40, 50, and 60 days after planting, plant emergency was superior for seed-rhizomes submitted to 100-day rest periods. at 70 and 80 dap, there were no significant differences. at 90 dap, seed-rhizomes that rested for 60 and 100 days provided around 91 and 83% of plant emergency, respectively. concerning plant height, seed-rhizomes that rested 100 days produced the tallest plants. the average mass of commercial rhizomes and the yield of commercial and seed-rhizomes were 1.22 kg, 13.1 t ha-1, and 7.7 t ha-1, respectively, for seed rhizomes submitted to 60-day rest periods. for 100-day rest period rhizomes, the average mass of commercial rhizomes and the yield of commercial and seed-rhizomes, were 0.73 kg, 7.7 t ha-1, and 1.7 t ha-1, respectively.
Desempenho de genótipos de coentro em Areia
Oliveira, Ademar P de;Melo, Paulo César T. de;Wanderley Júnior, Luiz Jorge da G;Alves, Anarlete U;Moura, Macio F de;Oliveira, Arnaldo Nonato P de;
Horticultura Brasileira , 2007, DOI: 10.1590/S0102-05362007000200024
Abstract: seven coriander genotypes were evaluated (lines htv 9299, htv 7299, htv 0699, htv 0999,htv 0199 and cvs. verd?o and palmeira), in areia county, paraiba state, brazil, from may to july of 2003 in randomized blocks in four replications. verd?o (5,0 kg m-2) and palmeira (4,3 kg m-2) cultivars and the lines htv 9299 (4,4 kg m-2), htv 7299 (4,5 kg m-2) and htv 0999 (4,3 kg m-2), exhibited the greatest yield of green mass (gm), while the line htv 0199, with 2.9 kg m-2 of gm, showed the lowest yield. lines htv 7299 (0.73) and htv 0199 (0.81) presented the largest values for the ratio leaves:stalks. verd?o and palmeira cultivars and lines htv 7299, htv 0999, htv 0699 and 9299 persented 65; 58; 35; 29; 40 and 59%, respectively, of plant bolting (pb) at 42 days after sowing date, while line htv 0199 presented only 11%. line htv 7299 might be an alternative for coriander cropping in areia.
Espa?amentos entrelinhas e entre plantas no crescimento e na produ??o de repolho roxo
Silva, Gilson Silverio da;Filho, Arthur Bernardes Cecílio;Barbosa, José Carlos;Alves, Anarlete Ursulino;
Bragantia , 2011, DOI: 10.1590/S0006-87052011000300008
Abstract: an experiment was carried out from may 19 to september 17, 2008, in jaboticabal, state of s?o paulo, brazil, with the aim of evaluating the effects of spacing between rows (0.4, 0.6, 0.8 and 1.0 m) and between plants (0.3, 0.4 and 0.5 m) on the growth and yield of cabbage. the experimental design was a randomized complete block with treatments in a factorial scheme 4 x 3, and three replications. small spacing between rows or between plants reduced the number of leaves, leaf area, dry matter of leaves and head fresh weight, whereas the leaf area index and yield increased. the highest yield (4.56 kg m-2) was obtained with 0.6 m between rows and 0.3 m between plants.
Cattle manure and N-urea in radish crop (Raphanus sativus)
Mendoza Cortez,Juan W; Cecílio Filho,Arthur B; Coutinho,Edson L; Alves,Anarlete;
Ciencia e investigación agraria , 2010, DOI: 10.4067/S0718-16202010000100004
Abstract: this work was carried out in jaboticabal (575 m altitude, 21°15? 22? s and 48° 15? 58? w), s?o paulo, brazil, aiming to investigate the effects of cattle manure and nitrogen (urea) doses on radish height and yield. randomized blocks were used with a 2x4x4 factorial scheme and 3 replications. the treatments were combinations of cultivars (25 and 19), cattle manure doses (0, 25, 50, and 75 t ha-1 dry basis) and n doses (0, 60, 120 and 180 kg ha-1). increased cattle manure and urea doses provided higher plant height and commercial yield in both cultivars, but the n produced more signifcant effects than the cattle manure. the maximum commercial yield of cultivar (cv) 19 (20.34 t ha-1) was obtained using 75 t ha-1 of cattle manure and 139 kg ha-1 of n, whereas that of cv 25 (11.90 t ha-1) occurred with 75 t ha-1 of cattle manure and 180 kg ha-1 of n. the maximum economic effciency doses for cv. 25 were 65.1 t ha-1 and 180 kg ha-1 of cattle manure and n, respectively, whereas those for cv 19 were 63.6 t ha-1 and 144.7 kg ha-1 of cattle manure and n, respectively.
Growth and accumulation of nutrients of the okra crops Crescimento e acúmulo de nutrientes da cultura do quiabeiro
Vanessa Cury Galati,Arthur Bernardes Cecílio Filho,Valéria Cury Galati,Anarlete Ursulino Alves
Semina : Ciências Agrárias , 2013,
Abstract: With the objective to quantify the okra crop’s growth and macro and micronutrients accumulation during its life-cycle obtaining equations that best represent it, an experiment was carried out at Jaboticabal city, SP, Brazil, from January 14th to May 14th, 2009. The cv. Santa Cruz 47 was directly sowed into open soil furrows, in a spacing of 1 x 0,2 m. During the life-cycle were realized random samples of plants at 15 days intervals. The means were adjusted to polynomial regression equations set of non-linear parameters. After 50 days from sowing there has been a large increase of dry matter in plant’ parts. At the final harvest, 120 days after sowing, the leaves, stems and fruits accounted for 21, 71 and 8%, respectively, from the total plant dry matter. The decreasing sequence of nutrient accumulation was K, Ca, N, Mg, P, Fe, B, Mn, Zn and Cu equivalent to 6,002.8; 4,733.8; 2,930.8; 1,196.3; 473.7; 436.2; 49.8; 10.4; 7.1; 7.1 e 1.5 mg plant-1. The quantity accumulated of culture were 146.5; 23.7; 300.1; 236.7; 59.8 e 21.8 kg ha-1 of N, P, K, Ca, Mg and S, respectively, and 520.0; 76.0; 2,491.0; 355.0 e 355.0 de B, Cu, Fe, Mn and Zn, respectively. Com o objetivo de quantificar o crescimento e o acúmulo de macro e micronutrientes da cultura do quiabeiro, no decorrer do ciclo, e obter equa es que melhor os representem, um experimento foi realizado de 14 de janeiro a 14 de maio de 2009, na UNESP Campus de Jaboticabal, SP. A cv. Santa Cruz 47 foi semeada diretamente no sulco, em espa amento de 1 x 0,2 m. No decorrer do ciclo, realizaramse coletas aleatórias de plantas com intervalos de quinze dias. As médias foram ajustadas às equa es de regress o polinomial e de modelos n o lineares. A partir de 50 dias após a semeadura (DAS) houve grande aumento no acúmulo de matéria seca nas partes da planta. Na colheita final, 120 DAS, as folhas, hastes e frutos representaram 21, 71 e 8%, respectivamente, da matéria seca total da planta. A seqüência decrescente de acúmulo de nutrientes pelo quiabeiro foi K, Ca, N, Mg, P, S, Fe, B, Mn, Zn e Cu, o equivalente a 6.002,8; 4.733,8; 2.930,8; 1.196,3; 473,7; 436,2; 49,82; 10,4; 7,1; 7,1 e 1,52 mg planta-1. As quantidades acumuladas pela cultura foram 146,5; 23,7; 300,1; 236,7; 59,8 e 21,8 kg ha-1 de N, P, K, Ca, Mg e S, respectivamente, e de 520,0; 76,0; 2.491,0; 355,0 e 355,0 g ha-1 de B, Cu, Fe, Mn e Zn, respectivamente.
ácido sulfúrico supera??o da dormência de unidade de dispers?o de juazeiro (Zizyphus joazeiro Mart.)
Alves, Edna Ursulino;Bruno, Riselane de Lucena Alcantara;Oliveira, Ademar Pereira de;Alves, Adriana Ursulino;Alves, Anarlete Ursulino;
Revista árvore , 2006, DOI: 10.1590/S0100-67622006000200005
Abstract: zizyphus joazeiro mart. trees have been declining in number in their natural habitat due to, among other reasons, the occurrence of dormancy of dispersal units (water impermeability). the effect of the immersion time (0, 30, 60, 90, 120 and 150 minutes) of zizyphus joazeiro mart. dispersal units in concentrated sulfuric acid (95-98 %) was evaluated through the emergency and vigor (first count, speed index and mean emergence time, plant height and dry matter weight). the experiment was performed under greenhouse conditions, with a completely randomized experimental design, six treatments and four replications. the pre-conditioning of zizyphus joazeiro mart. dispersal units with immersion in concentrated sulfuric acid was efficient for breaking the seed dormancy and also for increasing the emergence percentage and speed, the emergence first count, plant height and dry matter weight and reduction in the mean emergence time. the efficiency of this chemical treatment, with concentrated sulfuric acid, was shown to be dependent on the immersion time, being the most suitable to provide larger emergency percentages and vigor between 74 and 115 minutes.
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