Produção do tomateiro em função de doses de nitrogênio e da adubação orgânica em duas épocas de cultivo

Ferreira, Magna Maria Macedo; Ferreira, G. B.; Fontes, Paulo Cézar Rezende; Dantas, José Pires

doi:10.1590/s0102-05362003000300011

Cited by 41 publications

(43 citation statements)

References 8 publications

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“…The values obtained in this study ranged from 3.1 to 3.5. These results are in agreement with Ferreira et al (2006), who found average values of 3.7 and 3.5, with and without organic manure, respectively. According to these authors, the environmental and cultural conditions given to the tomato plants do not interfere with the content of soluble solids.…”

Section: Resultssupporting

confidence: 93%

“…Nitrogen is the nutrient most required by plants, and to achieve high rates of growth, yield and fruit quality of tomato under field conditions, the amount to be applied must be equal to the plant demand (Ferreira et al, 2006). According to these authors, this increased demand occurs during the stages of fruit growth, since the accumulation of soluble solids occurs during this period.…”

Section: Resultsmentioning

confidence: 99%

“…is a crop with high nutritional requirements and its production is influenced by the availability of nutrients (Ferreira et al, 2003), among other factors. These nutritional requirements are met through the use of nutrient sources which vary depending on the cultural practices adopted by the farmer.…”

Section: T Omato (Lycopersicon Esculentum)mentioning

confidence: 99%

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Yield and nutrition of tomato using different nutrient sources

et al. 2011

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The effect of alternative sources of nutrients was evaluated on yield, nutrition and fruit quality of tomato cv Santa Clara in an agro ecological system, under natural conditions in Montes Claros, Minas Gerais State, Brazil. The experimental design was of completely randomized blocks with seven treatments and four replications, using eight plants per experimental plot. The treatments comprised of 1) conventional fertilization with NPK; 2) organic compost + natural phosphate + rock dust, applied separately; 3) organic compost produced from the addition of natural phosphate and rock dust + green manure; 4) organic compost produced from the addition of rock dust + natural phosphate + green manure; 5) organic compost produced from the addition of natural phosphate and rock dust + green manure; 6) natural phosphate + rock dust; and 7) organic compost + natural phosphate + rock dust + green manure. The highest production was obtained using chemical fertilizers. There was no difference among the treatments regarding the content of foliar nutrients and fruit diameter, pH and total soluble solids. The use of mineral and organic fertilizers significantly reduced the incidence of soft rot and pests in comparison to the use of chemical fertilizers.

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Section: Resultssupporting

confidence: 93%

Section: Resultsmentioning

confidence: 99%

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Yield and nutrition of tomato using different nutrient sources

et al. 2011

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“…This vegetable is well adaptated to the tropical climate, however, its growth is quite influenced by nitrogen and phosphorus availability (Swiader & Morse, 1982;Filgueira, 2003). In nutrient solution, nitrogen absence affects the growth of new leaves and stems, and in phosphorus absence fruit formation does not occur (Haag & Homa, 1968).…”

Section: Introductionmentioning

confidence: 99%

Eggplant growth as affected by bovine manure and magnesium thermophosphate rates

Cardoso

Pereira

Souza

2008

Sci. agric. (Piracicaba, Braz.)

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Plant growth is influenced by nutrient availability. The objective of this research was to study, under greenhouse conditions, eggplant growth as affected by rates of bovine manure and magnesium thermophosphate (g kg -1 and mg kg -1 , respectively), according to a "Box central composite" matrix: 4.15-259; 4.15-1509; 24.15-259; 24.15-1509; 0.0-884; 28.3-884; 14.15-0,0; 14.15-1768; 14.15-884. Potassium sulfate (170 mg kg -1 ) and 200 mL per pot of cow urine solution were applied four times, but the concentration of the last two applications (200 mL/H 2 O L) was twice of that of the first two. Additional treatments: magnesium thermophosphate without cow urine and triple superphosphate with urea, both with nutrient levels equivalent to the bovine manure, P 2 O 5 and potassium sulfate to the combination 14.15-884. The experimental design consisted of randomized blocks with four replicates. Leaf area (LA) and LA ratio increased as quadratic functions with manure rates, with negative interaction for thermophosphate. Leaf dry matter mass (DMM) had an increasing quadratic function with rates for both fertilizers. The higher combined rates of both fertilizers resulted in the smallest specific leaf area, but also the highest values of shoot and root DMM, total DMM and, with positive interaction in relation to root shoot dry matter ratio. The relative growth rate in stem height, and also in diameter, increased with manure, according to quadratic and linear functions, respectively. The cow urine effect was, in general, lower than that of urea. The plant's overall growth was more influenced by manure. Root DMM and shoot DMM were greater with high K and P. Key words: Solanum melongena, organic fertilization, phosphorus, cow urine CRESCIMENTO DA BERINJELA EM FUNÇÃO DE DOSES DE ESTERCO BOVINO E DE TERMOFOSFATO MAGNESIANORESUMO: O crescimento em plantas é influenciado pela disponibilidade de nutrientes. O objetivo deste trabalho foi estudar, em abrigo telado, o crescimento da berinjela em função de doses de esterco bovino e termofosfato magnesiano (g kg -1 -mg kg -1 , respectivamente), conforme a matriz "composto central de Box": 4,15-259; 4,15-1509; 24,15-259; 24,15-1509; 0,0-884; 28,3-884; 14,15-0,0; 14,15-1768; 14,15-884. Acrescentaram-se sulfato de potássio (170 mg kg -1 ) e quatro parcelas de 50 mL por vaso de solução de urina de vaca, as duas últimas possuindo concentração de 200 mL L -1 de H 2 O, o dobro da inicial. Tratamentos adicionais: termofosfato magnesiano sem urina de vaca e superfosfato triplo com uréia, iguais em esterco, P 2 O 5 e sulfato de potássio, à combinação 14,15-884. O delineamento experimental foi em blocos casualizados com quatro repetições. A área foliar (AF) e a razão de AF aumentaram, quadraticamente, com as doses de esterco, porém, a interação com o termofosfato foi negativa. A massa de matéria seca (MMS) de folhas incrementou, quadraticamente, com as doses dos dois insumos. Na combinação das maiores doses de ambos ocorreram a menor AF específica e os maiores valores da MMS da parte aére...

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“…Em muitos casos, há necessidade da adição de uma fonte mineral para suprir as exigên-cias nutricionais das plantas (KIEHL, 1985). Em trabalho desenvolvido com tomate, constatou-se (FERREIRA et al, 2003) que a adição de esterco bovino e nitrogênio, na forma de nitrocálcio, combinados, proporcionou as maiores produtividades da cultura. Por outro lado, Vieira et al (2001) não detectaram diferença entre o uso do nitrogênio mineral, na forma de sulfato de amônio, e a cama de frango, sobre a produção de biomassa seca dos capítulos florais de camomila, sendo as maiores produções resultantes das maiores doses das fontes empregadas.…”

Section: Introductionunclassified

Resíduos orgânicos e nitrogênio na produção de biomassa da capuchinha (Tropaeolum majus L.) 'Jewel'

Sangalli

Vieira²,

Zárate³

2004

Ciênc. agrotec.

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RESUMORealizou-se este trabalho com o objetivo de avaliar o crescimento, desenvolvimento e a produção de flores de Tropaeolum majus L., em função do uso de cama de frango e de resíduo orgânico misto, associados ou não ao nitrogênio. O trabalho foi desenvolvido no Horto de Plantas Medicinais -HPM, da Universidade Federal de Mato Grosso do Sul UFMS, em Dourados MS, no período de maio a outubro de 2002. Os tratamentos em estudo foram testemunha (solo normal) -T, nitrogênio (60 kg.ha -1 N, na forma de sulfato de amônio) -N, cama (15000 kg ha -1 de cama de frango semidecomposta) -CF, cama mais nitrogênio -CFN, resíduo misto (15000 kg ha -1 ) RM e resíduo misto mais nitrogênio -RMN, dispostos no delineamento experimental de blocos casualizados, com quatro repetições. As características avaliadas foram: altura das plantas, biomassa fresca e seca da parte aérea sem flores, biomassa fresca e seca das flores, número de flores, diâmetro e altura das flores, teor de N e P nas folhas e flores. A maior altura da planta foi de 36,33 cm no tratamento CF. As plantas do tratamento CFN apresentaram as maiores produções de biomassa fresca (52195,69 kg.ha -1 ) e seca (6281,14 kg ha -1 ) de parte aérea sem flores, e de biomassa fresca (3150,97 kg.ha -1 ), seca (232,17 kg ha -1 ) e de número de flores (50,49 milhões ha -1 ). Os diâmetros e os comprimentos das flores não variaram com os tratamentos utilizados. Os teores médios de N (33,0 e 32,0 g kg -1 ) e de P (1,9 e 3,3 g kg -1 ) nas folhas e nas flores, respectivamente, estiveram dentro daqueles citados para a espécie. Termos para indexação:Resíduo misto, cama de frango, nutrição mineral, produtividade. ABSTRACTThe objective of this work was to evaluate growth, development and yield of Trapaeolum majus L. flowers as a function of the use of chicken manure and mixed organic residue associated or not with Nitrogen. The work was carried out at Medicinal Plant Garden HPM of the Federal University of Mato Grosso do Sul UFMS, in Dourados MS, from May to October, 2002. Studied treatments were control (normal soil) -T, nitrogen (60 kg.ha -1 of N, in ammonia sulfate form) -N, chicken manure (15000 kg ha -1 of semi-decomposed chicken manure) -CF, chicken manure associated with nitrogen -CFN, mixed residue (15000 kg ha -1 ) RM and mixed residue associated with nitrogen -RMN, which were established in a randomized experimental design with four replications. Evaluated characteristics were plant height, dried and fresh matter of aerial part without flowers, fresh and dried matter of flowers, flower diameter and height, N and P content in leaves and flowers. The highest plant height was of 36.33 cm in CF treatment. Plants from CFN treatment showed the greatest yield of fresh (52,195.69 kg.ha -1 ) and dried (6,281.14 kg.ha -1 ) matters of aerial parts without flowers, and of fresh (3,150.97 kg.ha -1 ) and dried (232.17 kg.ha -1 ) matters and number of flowers (50.49 millions.ha -1 ). Diameters and heights of flowers did not varied with treatments used. The highest contents of N (35.6 g kg -1 ) and...

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Produção do tomateiro em função de doses de nitrogênio e da adubação orgânica em duas épocas de cultivo

Cited by 41 publications

References 8 publications

Yield and nutrition of tomato using different nutrient sources

Yield and nutrition of tomato using different nutrient sources

Eggplant growth as affected by bovine manure and magnesium thermophosphate rates

Resíduos orgânicos e nitrogênio na produção de biomassa da capuchinha (Tropaeolum majus L.) 'Jewel'

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