Camu-camu is an native species in domestication processes. Therefore, studies related to the root system are necessary to evaluate the best cultivation practices for an orchard. Two trials were conducted, one with nitrogen (N) and the other with potassium (K), at doses of 0, 40, 80, 160, and 320 kg·ha–1. Root distribution was determined using nondestructive analyses in which two-dimensional (2D) root images were obtained from trenches under the plants’ canopy. Variables included width (measured in cubic millimeters), area (measured in square millimeters), and length (measured in millimeters, and were analyzed using Safira software (version 2010, Embrapa, Brazil). To have better spatial visualization of variable distribution in the soil profile, data were analyzed using the ordinary kriging technique with the geoR software package and R software (version 2016). Both N and K doses inf...

Camu-camu (Myrciaria dubia (Kunth) McVaugh) is a native fruit tree, which is in domestication process, therefore, knowledge of nutritional needs is essential to improve the fertilization efficiency throughout plant development. The aim of this research was to determine the nutrient content of camu-camu plants as a function of nitrogen fertilization via fertirrigation in the first year of cultivation. An experiment was carried out in a randomized complete block design, with 5 treatments as follows: 0; 40; 80; 120 and 160 kg.ha-1 of N, eight replicates and seven plants per experimental unit. The evaluated variables were as follows: total dry matter and nutrient contents in camu-camu leaves. The results show total dry matter of camu-camu plants, which were performed a significant quadratic behavior in response to increasing N doses. In Fact, N doses greater than 128 kg.ha-1 aroused a depres...

Myrciaria dubia (Kunth) McVaugh es un árbol frutal nativo de la Amazonía con gran potencial debido a sus propiedades nutracéuticas, por lo que se considera necesario desarrollar tecnologías de adaptación ex situ. El objetivo de este estudio fue estimar la evapotranspiración (ETc) y el coeficiente de cultivo (Kc) de Myrciaria dubia para su domesticación y conservación en suelos de tierra firme. Se trasplantaron, a lisímetros de drenaje, dos plantas de Myrciaria dubia de 2, 4 y 6 años de edad con características morfológicas similares en altura, número de ramas (basales y terminales) y diámetro (de tallo y dosel). Se aplicó, a una planta de cada categoría de edad y en una ocasión, acolchado orgánico compuesto de una hierba nativa (Trachypogon plumosus). Los valores promedio de la ETc de las plantas de 2, 4 y 6 años de edad en presencia y ausencia de acolchado fueron 2 y ...