Composto orgânico na produção e qualidade de sementes de brócolis

Magro, Felipe Oliveira; Arruda, Natália; Casa, Jamille; Salata, Ariane da Cunha; Cardoso, Antônio Ismael Inácio; Fernandes, Dirceu Maximino

doi:10.1590/s1413-70542010000300010

Cited by 28 publications

(46 citation statements)

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“…E-mail: ismaeldh@fca.unesp the quality. This response, reduction on production without affecting quality, was observed in lettuce for potassium (KANO et al, 2006), phosphorus (KANO et al, 2012) and organic compost (QUADROS et al, 2012), and in broccoli, also with rates of organic compost (MAGRO et al, 2010). Some reports stated that nutritional effect on the quality of seeds can be observed after some period of seed storage (KANO et al, 2011;MAGRO et al, 2012).…”

Section: Introductionmentioning

confidence: 85%

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Phosphate fertilization on production and quality of cauliflower seeds

et al. 2016

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Section: Introductionmentioning

confidence: 85%

“…In broccoli, the same species of cauliflower, MAGRO et al (2009MAGRO et al ( , 2010 obtained higher seed production with much higher rates of organic compost than recommended for commercial inflorescence production, and higher extraction of all macronutrients in relation to a commercial crop.…”

Section: Introductionmentioning

confidence: 99%

Phosphate fertilization on production and quality of cauliflower seeds

et al. 2016

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“…Four compost rates (0, 30, 60, 90, and 120 t/ha) with 0.72% nitrogen and 40% organic matter were applied. The production of broccoli seeds (number and weight) per plant increased linearly with increased doses of OC (Magro et al, 2010 …”

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Levels of Crotalaria juncea on growth, production, recovery and efficiency of the use of N in broccoli

et al. 2017

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A lthough there are studies on nutrition and fertilizer recommendations for the commercial cultivation of broccoli (Brassica oleracea var. italica) and works with other types of organic fertilizers such as compost or manure (Oliveira et al., 2003;Yuri et al., 2004; Damato Junior et al., 2005), there are few studies on the effects of green manure on the growth and production of broccoli. The literature also lacks studies relating green manure doses to the production and/or growth of horticultural products.One of the few studies reports the influence of doses of organic compost (OC) on yield and quality of the "Ramoso Santana" broccoli seeds. Four compost rates (0, 30, 60, 90, and 120 t/ha) with 0.72% nitrogen and 40% organic matter were applied. The production of broccoli seeds (number and weight) per plant increased linearly with increased doses of OC (Magro et al., 2010 ABSTRACTThe recommendation for green manure (GM) in cropping systems still has little scientific support, with few studies addressing the effects of nutrient amounts from green manure on the growth and production of the crop. Our aim was to evaluate the effect of levels of Crotalaria juncea green manure on the growth, production, and efficiency of the use as well as the apparent recovery of N in broccoli crop. Seven treatments were established; the main with four doses of green manure: 0, 3, 6, and 9 t/ha on a dry matter (DM) basis, applied with 12 t/ha compost. The control treatments consisted of mineral fertilization, the treatment with 25 t/ha compost, and another as the absolute control. Comparatively, production under the absolute control was less than all other treatments with green manure doses and application of 12 t/ha compost. The production of plants grown with 25 t/ha compost was superior to that of plants grown with dose of 0 t/ha and similar to that obtained with 3 t/ha; however, it was inferior to those produced with doses of 6 and 9 t/ha green manure. The highest percentage of N recovered (REC N) by the broccoli plants was observed close to a dose of 3 t/ha green manure, with a maximum point of 37.90% (2.8 t/ha), while in larger doses of 6 and 9 t/ha showed estimated values of 31.91% and 20.49%, respectively. The physiological efficiency of the use of N (EFUN) showed an effect similar to apparent recovery of N (REC N), with higher EFUN from lowest to highest dose of green manure, that is, 3, 6, and 9 t/ha, with estimated values of 70.41, 62.45, and 26.02 g DM per g of N uptake, respectively. The mass amounts of applied C. juncea influenced positively on the growth and productivity of broccoli. The lower mass of applied green manure increases the physiological efficiency of the use of N with more apparent recovery of the applied N.Keywords: Brassica oleracea var. italica, green manure, nitrogen. RESUMO Doses de Crotalaria juncea no crescimento, produção, recuperação e eficiência de uso de N em brócolisA recomendação da adubação verde nos sistemas de cultivos ainda apresenta pouco suporte científico e poucos estudos abordam os ef...

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“…In this study, the weight of the maximum dry matter was 21 g/plant, whilst Feltrim et al (2008) obtained values above 30 g/plant. A luxury absorption of K in higher doses of organic compost may have occurred, as it is the fastest nutrient released during mineralization of organic matter (Magro et al, 2010;Cardoso et al, 2011;Quadros et al, 2011). In addition, the lower accumulation of N in relation to the data reported by Feltrim et al (2008) should be related to low N content (0.5%) in the compost used in this experiment.…”

Section: Doses Of Organic Compostmentioning

confidence: 48%

Doses of organic compost on yield and accumulation of macronutrients on endive

et al. 2017

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The authors evaluated the effects of doses of organic compost on the production and accumulation of macronutrients in endive plants in two areas with different fertility levels. The experiments were carried out at Fazenda Experimental São Manuel, located in the municipality of São Manuel, São Paulo State, Brazil. The study was carried out in a completely randomized design with seven treatments, six doses of organic compost (0, 35, 70, 105, 140 and 175 t/ha) and one additional treatment with inorganic fertilizer (N-P-K 4-14-8) and four replicates. In both areas, when the dose of organic compost was increased, the authors noticed a linear increase in fresh matter weight, number of leaves and plant height. In high-fertility area, compared to control (dose 0), using the highest dose (175 t/ha), the authors observed an increase of 280, 58 and 101% in fresh matter weight, number of leaves and plant height, respectively. For dry weight, we observed a linear increase in low fertility area and quadratic effect in high fertility area, with maximum estimated dry matter of 22.26 g applying 144 t/ha of organic compost. The nutrient accumulation was proportional to dry matter, with a linear increase in low fertility area and quadratic effect in high fertility area. The decreasing order of accumulated nutrients was K>N>Ca>P>S>Mg, with the highest values, in high fertility area, of 1,269, 471, 185, 91, 53 and 35 mg/plant, respectively, for doses varying from 121 to 158 t/ha.

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Composto orgânico na produção e qualidade de sementes de brócolis

Cited by 28 publications

References 8 publications

Phosphate fertilization on production and quality of cauliflower seeds

Phosphate fertilization on production and quality of cauliflower seeds

Levels of Crotalaria juncea on growth, production, recovery and efficiency of the use of N in broccoli

Doses of organic compost on yield and accumulation of macronutrients on endive

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