Determination of Growth and Nutrient Accumulation in Bella Vista Onion

Abstract

Knowledge of the nutrient uptake by crops at different stages of growth may provide the basis for rational application of fertilizers, which may lead to reduced production costs and improved use of fertilizers by plants. Based on this knowledge, we conducted this study to determine the biomass and nutrient accumulation curve of the onion cultivar Bella Vista in a system of transplanted seedlings. The experiment was carried out in Ituporanga-SC, Brazil, by using a randomized block design with three replicates. Eleven plant collections were carried out throughout the crop cycle. The variables evaluated included plant length; total dry biomass of leaves, bulbs, and roots; and concentrations of macro- and micronutrients. The maximum dry biomass accumulation in the shoots and bulbs at 140 days after transplanting (DAT) was 4.26 and 27.41 mg per plant, respectively, which contributed to 13% and 85% of the whole plant dry biomass at the end of the cycle, respectively. Potassium (K, 521.6 mg) was accumulated in the largest quantity per plant, followed by nitrogen (N, 465.7 mg), calcium (Ca, 253.3 mg), sulfur (S, 109.0 mg), magnesium (Mg, 86.9 mg), and phosphorus (P, 76.5 mg). The micronutrient accumulation was as follows: iron (Fe, 6,227.5 µg), boron (B, 902.3 µg), zinc (Zn, 573.7 µg), manganese (Mn, 573.7 µg), and copper (Cu, 241.4 µg).

Impact of the Hydroponic Cropping System on Growth, Yield, and Nutrition of a Greek Sweet Onion (Allium cepa L.) Landrace

“…Plant growth of Nerokremmydo of Zakynthos follows the typical growth of an onion plant as described by other researchers [53,54]. Plants of this landrace grown in AG and FL systems appeared to adjust faster to their environment during the first main growth stage (up to 31 DAT).…”

Distribution of macronutrients (N, P, K, Mg) from single-nutrient and compound fertilizers application in oil palm seedlings (Elaeis guineensis Jacq.)

“…Therefore, its distribution and accumulation varies. There are several factors that influence the nutrient uptake, distribution, and accumulation of each nutrient such as climate, soil type, and management or agricultural practices including fertilization (Backes et al, 2018).…”

Dinâmica De Crescimento E Absorção De Nutrientes Pelo Cultivar De Cebola Epagri 363 Superprecoce / Growth Dynamics and Nutrient Absorption by the Onion Cultivar Epagri 363 Superprecoce

“…Ao final do ciclo estes autores observaram para a população de plantas de 700.000 plantas ha -1 e produtividade de 24 t ha -1 , absorção em kg ha -1 de 148,2 (N); 23,3 (P); 159,8 (K); 24,9 (S); 72,9 (Ca); 10,3 (Mg); 0,035 (Cu); 1,49 (Fe); 0,742 (Mn); e 0,327 (Zn). Os resultados sobre a quantidade de macronutrientes acumulada pela cebola são variáveis entre os autores (N: 63,0 a 148,2 kg ha -1 ; P: 8,9 a 27,8 kg ha -1 ; K: 38,0 a 159,8 kg ha -1 ; Ca: 24,3 a 72,9 kg ha -1 ; Mg:3,3 a 14,8 kg ha -1 e S: 14,0 a 37,5 kg ha -1 ), dependendo do cultivar, tecnologia empregada e do local de cultivo (PORTO et al, 2006(PORTO et al, , 2007SANTOS, 2007;MAY et al, 2008;VIDIGAL et al, 2010;KURTZ et al, 2016;BACKES et al, 2018).…”