Efeitos de tipos de bulbos e adubação nitrogenada sobre a produtividade e características comerciais do alho cv. "Quitéria"

Resende, G. M. de; Souza, Rovilson José de

doi:10.1590/s0102-05362001000300005

Cited by 5 publications

(2 citation statements)

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“…It depends, besides the cultivar and edaphoclimatic conditions, on bulblet quality, on the planting system (field or greenhouse conditions), and on the levels, sources, and times of application of the nutrient doses used. Resende & Souza (2001b), evaluating nitrogen doses for the cultivar "Quitéria", verified a quadratic effect on total yield, with an estimated maximum of 6.6 t ha -1 at the dose of 149.2 kg ha -1 . In contrast, the authors found a linear decreasing effect on commercial yield.…”

Section: Resultsmentioning

confidence: 84%

Nitrogen fertilization for noble garlic production in high altitude regions of the Brazilian semiarid region

et al. 2019

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Rio Grande do Norte State in Brazil has microregions with altitudes where the edaphoclimatic conditions are favorable to the cultivation of garlic, including vernalized noble garlic. An example is the municipality of Martins, where vegetable cropping is not a traditional practice. Since it is a region with potential for cultivation of noble garlic, comprising soil and climate conditions that are distinct from traditional production regions in Brazil, the use of nitrogen fertilization becomes an alternative to increase crop yield. This fact can stimulate the semiarid producer to invest in the crop, once it guarantees greater economic return. Thus, aiming to evaluate the production of vernalized noble garlic as a function of nitrogen doses applied in top dressing, an experiment was developed from May to August 2014, using a complete randomized complete block design with five replicates. The treatments consisted of the cover application of increasing doses of N (0, 40, 80, 120, and 160 kg ha-1). The following were evaluated: plant height; number of leaves; average bulb weight; total, commercial, and noncommercial bulb yield; bulb and bulblet classification; and number of bulblets per bulb. The dose of 90 kg ha-1 nitrogen, applied in top dressing, provided the highest averages of plant height, number of leaves, average bulb weight, and total bulb yield. The dose of maximum economic efficiency was 91 kg ha-1 , which promoted greater commercial bulb yield. The number of bulblets per bulb and bulblet classification were not influenced by nitrogen doses applied in top dressing.

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Section: Resultsmentioning

confidence: 84%

Nitrogen fertilization for noble garlic production in high altitude regions of the Brazilian semiarid region

et al. 2019

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“…Resende and Souza (2001a) found a linear increase in the number of cloves per bulb arising from an increase in Nitrogen doses up to 120 kg ha -1 . Yet, studies carried out by Resende and Souza (2001b) and Macêdo et al (2009) did not report on effects of the treatments on the average number of cloves per bulb with the application of N doses up to 160 and 180 kg ha -1 , respectively. Nitrogen fertilization was responsive in bulb classes with respect to the transversal diameter, presenting square adjustments in all of the classes (Figure 3).…”

Section: Resultsmentioning

confidence: 95%

Agronomic and economic efficiency of nitrogen fertilization in garlic culture

Marco¹,

Pelá²,

Rafael³

et al. 2015

Afr. J. Agric. Res.

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This study was aimed at evaluating the influence of nitrogen fertilization on the productivity of garlic culture. The experiment was carried out at Goiás State University, Ipameri Unit. The randomized block design was adopted for the experiment, with six treatments and four replications. The treatment consisted of nitrogen doses in cover crop (0; 40; 80; 160; 320 and 640 kg ha -1 ), applied at 15, 30 and 70 days after planting. The cultivar used was Allium sativum L. cv. Ito, from the Roxo Nobre group. Before each N application, the plants components, the presence of photosynthetic pigments and of N content in leaves were assessed. The bulbs were harvested at 100 days after planting and evaluated as to total, commercial productivity, and economic viability. Among the components produced, the average bulb weight and the average number of cloves per bulb were mostly determinant to production. Nitrogenbased fertilization that enabled the predominance of classes 5 and 6 bulbs. There was no significant incidence of pseudo-stem tillers. The doses with maximum agronomic and economic efficiency were 251.7 and 267.2 kg of N ha -1 , respectively, though with a considerable safety margin. .

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Produção de bulbos e incidência de pseudoperfilhamento na cultura do alho vernalizado em função de adubações potássicas e nitrogenadas

et al. 2002

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LEONARDO THEODORO BÜLL (2,3) ; ROSEMARY MARQUES DE ALMEIDA BERTANI (2) ; ROBERTO LYRA VILLAS BÔAS (2) ; DIRCEU MAXIMINO FERNANDES (2) RESUMOCom o objetivo de estudar a influência da interação N x K na cultura do alho (Allium sativum L.) vernalizado, instalaram-se dois experimentos em casa de vegetação telada, em vasos retangulares de cimento-amianto contendo 50 kg de terra da camada arável em Latossolo Vermelho-Escuro Álico, textura média. Ambos os experimentos constituíram fatorial 4 x 4. Em 1993, estudaram-se quatro níveis de potássio no plantio (original, 4%, 8% e 16% da CTC) e quatro níveis de nitrogênio em cobertura (40, 80, 160 e 320 kg.ha -1 ) aplicados em duas parcelas, metade aos 30 dias e metade aos 50 dias após a emergência (DAE). O experimento de 1994 compreendeu quatro níveis de potássio e os mesmos quatro níveis de nitrogênio, ambos aplicados parcelados em cobertura, mantendo-se constante o nível de potássio aplicado no plantio. Aos 70 DAE coletaram-se duas plantas de cada vaso para diagnose foliar. Os resultados indicaram redução na concentração foliar de nitrogênio pela adubação potássica, tanto no plantio quanto na cobertura, havendo, entretanto, aumento nos teores de potássio com a concentração de nitrogênio no tecido; aumento na concentração de clorofila com os níveis de potássio no tecido foliar, em virtude de variações nas doses de fertilizante potássico aplicado no plantio e com as doses de nitrogênio em cobertura; favorecimento das elevações nas doses da adubação nitrogenada em cobertura na incidência de pseudoperfilhamento na cultura, que não foi influenciada pela adubação potássica no plantio ou em cobertura; aumento na produção de bulbos com adubação nitrogenada em cobertura. Palavras-chave: Allium sativum L., alho vernalizado, pseudoperfilhamento, adubação potássica, adubação nitrogenada. ABSTRACT BULB YIELD AND PSEUDOGROWING INCIDENCE OF VERNALIZATED GARLIC AS INFLUENCED BY POTASSIC AND NITROGEN FERTILIZATIONTwo experiments were carried out under greenhouse conditions, with the objective of studying the influence of N x K interaction on vernalizated garlic (Allium sativum L.) grown in 50 kg pots. Both experiments were in factorial 4 x 4: (a) one in 1993 with four potassium levels in the sowing (original, 4%, 8% and 16% of CEC) and four levels of nitrogen in covering (40, 80, 160 and 320 kg.ha -1 ) applied half at 30 and the remaining at 50 days after seed emergency (DAE); (b) the other in 1994, with four potassium levels and four nitrogen levels, both splitted and applied in covering. At 70 DAE two plants per pot were collected for nutritional diagnosis. The results indicated that the leaf concentration of nitrogen was slightly reduced by K fertilization applied in the sowing or in covering. However, there were increases in the potassium concentration with the nitrogen concentration in the leaves; the chlorophyll concentration increased with the potassium levels in the leaves, because of variations in K fertilizer rates applied in the sowing, and with the nitrogen rates in cove...

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Efeitos de tipos de bulbos e adubação nitrogenada sobre a produtividade e características comerciais do alho cv. "Quitéria"

Cited by 5 publications

References 3 publications

Nitrogen fertilization for noble garlic production in high altitude regions of the Brazilian semiarid region

Nitrogen fertilization for noble garlic production in high altitude regions of the Brazilian semiarid region

Agronomic and economic efficiency of nitrogen fertilization in garlic culture

Produção de bulbos e incidência de pseudoperfilhamento na cultura do alho vernalizado em função de adubações potássicas e nitrogenadas

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