Data/hora: 10/06/2024 11:57:45

Provedor de dados: | 109
País: | Colombia
Título: | Nutritional contents in Myrciaria dubia plants in function of in Potassium doses applied through fertigation
Autores: | Abanto-Rodríguez,Carlos; Alves Chagas,Edvan; Farias Araújo,Wellington; Gongalves Paulichi,Matheus; García de Lima,Jodo Vitor; Medeiros de Oliveira,Eduardo; Lopes Monteiro Neto,Jodo Luiz; da Silva Maia,Sonicley; Sanchez-Choy,José; Panduro Tenazoa,Nadia Masaya.
Data: | 2019-12-01
Ano: | 2019
Palavras-chave: | Agronomic management; Camu-camu; Caqari; Leaf analysis; Mineral nutrition.
Resumo: | Abstract The objective in this study was to determine the nutrient contents in Myrciaria dubia plants in function of five K2O doses (0, 40, 80, 120 and 160 kg ha-1) applied through fertigation. Leaf dry matter (LDM), total dry matter (TDM), and leaf nutrient contents were evaluated. The LDM and TDM were higher in plants subjected to the dose of 160 kg ha-1 of K2O, with 52.44 g and 302.69 g, respectively. Leaf N and K contents were 22.15 and 9.48 g kg-1 in response to 160 kg ha-1 of K2O. The mean P, Ca and S contents were 1.6, 17.89 and 1.61 g kg-1, respectively, and the content of Mg2 + decreased from 5.62 to 2.74 g kg-1 at the dose of 0 and 160 kg ha-1 of K2O, respectively. The B, Mn and Fe contents decreased from 136.5 to 100.0, 346.24 to 248, and from 142.06 to 97.35 mg kg-1 at the dose of 0 and 160 kg ha-1 of K2O, respectively. The mean Cu and Zn contents were 3.81 and 40,54 mg kg-1, respectively, at the K2O doses. The nutrient content determined in the leaves of M. dubia were adequate for the development of the species in the first year of cultivation, presenting the following decreasing order: N&gt; Ca&gt; K&gt; Mg&gt; P = S&gt; Mn&gt; B&gt; Fe &gt; Zn&gt; Cu.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122019000400291
Editor: | Universidad Nacional de Colombia
Relação: | 10.15446/acag.v68n4.76882
Formato: | text/html
Fonte: | Acta Agronómica  v.68 n.4 2019
Fonte: | info:eu-repo/semantics/openAccess