ABSTRACT The chemical composition and the accumulation of nutrients in stems, leaves and fruits are essential information to meet the nutritional requirements of a peanut crop. Thus, the goals of the present study were to evaluate the rate of absorption of macro- and micronutrients; identify the critical phases of nutrient absorption in the peanut crop; and perform growth analysis of these plants. For this, an experiment under field conditions using randomized blocks with 15 treatments and four repetitions was assembled. Each treatment corresponded to a sampling time, held from 10 days after planting, until the end of the cycle, which corresponded to 160 days. Peanut plants generally showed higher macro- and micronutrient absorption rates at 110 days after emergence, coinciding with the highest growth rate of the crop. Thus, the higher nutrient absorption rate and increased crop growth rate occurred during the reproductive period, formation of fruit and grain filling. | RESUMO A composição química tanto quanto o acúmulo de nutrientes em caule, folhas e frutos são informações imprescindíveis para conhecer as exigências nutricionais da cultura do amendoim. Dessa forma, objetivou-se com o presente estudo avaliar a taxa de absorção de macro e micronutrientes, além de identificar as fases críticas de absorção de nutrientes na cultura do amendoim, bem como, realizar a análise de crescimento dessas plantas. Para isso foi montado um experimento em condição de campo no delineamento experimental em blocos ao acaso, com 15 tratamentos e 4 repetições. Cada tratamento correspondeu a uma época de amostragem, realizadas de 10 em 10 dias após o plantio da espécie, até o final do ciclo da cultura, que correspondeu há 160 dias. Foi observado de modo geral nas plantas de amendoim maior taxa de absorção de macro e micronutrientes aos 110 dias após a emergência, período que coincidiu com a maior taxa de crescimento da cultura. Assim, a maior taxa de absorção de nutrientes e a maior taxa de crescimento da cultura ocorreram durante o período reprodutivo, formação dos frutos e enchimento dos grãos.

The chemical composition and the accumulation of nutrients in stems, leaves and fruits are essential information to meet the nutritional requirements of a peanut crop. Thus, the goals of the present study were to evaluate the rate of absorption of macro- and micronutrients; identify the critical phases of nutrient absorption in the peanut crop; and perform growth analysis of these plants. For this, an experiment under field conditions using randomized blocks with 15 treatments and four repetitions was assembled. Each treatment corresponded to a sampling time, held from 10 days after planting, until the end of the cycle, which corresponded to 160 days. Peanut plants generally showed higher macro- and micronutrient absorption rates at 110 days after emergence, coinciding with the highest growth rate of the crop. Thus, the higher nutrient absorption rate and increased crop growth rate occurred during the reproductive period, formation of fruit and grain filling.

RESUMO A figueira 'Roxo de Valinhos' é uma das variedades mais cultivadas no mundo, no entanto, ainda existem poucos estudos sobre a fenologia e produção de figueiras, especialmente em regiões semi-áridas. Este estudo avaliou os aspectos fenológicos e produtivos da cultivar de figueira 'Roxo de Valinhos' no Oeste Potiguar. O experimento foi realizado de julho a dezembro de 2015 no pomar didático da Universidade Federal Rural do Semi-Árido, UFERSA. Os seguintes aspectos fenológicos foram analisados: poda do início ao brotamento, emergência e maturação do primeiro fruto, início da colheita, comprimento e diâmetro dos ramos, número de frutos por ramo, comprimento e diâmetro dos frutos, taxa de crescimento absoluto, rendimento por planta, número de frutos por planta e peso do fruto. Utilizamos estatística descritiva; Para as características quantitativas e qualitativas, utilizou-se análise de regressão e teste de médias, através do teste de Tukey a 5% de probabilidade. As figueiras mostraram boa adaptabilidade às regiões semi-áridas e precocidade quando comparadas às figueiras das regiões temperadas, em todos os estádios fenológicos; A cultivar estudada apresentou resultados promissores para o cultivo nesta região. | ABSTRACT The ‘Roxo de Valinhos’ fig is one of the most widely grown varieties in the world, however, there are still few studies on the phenology and yield of fig trees, especially in semi-arid regions. This study evaluated the phenology and yield aspects of the ‘Roxo de Valinhos’ fig cultivar in Western Potiguar. The experiment was carried out from July to December 2015 in the didactic orchard of the Federal Rural University of the Semi-Arid, UFERSA. The following phenological aspects were analyzed: pruning at the beginning of budding, emergence and maturity of the first fruit, beginning of harvest, length and diameter of branches, number of fruits per branch, length and diameter of fruits, absolute growth rate, yield per plant, number of fruits per plant, and fruit weight. We used descriptive statistics; for quantitative and qualitative characteristics, we used regression analysis and means test, through Tukey´s test at 5% probability. Fig trees showed good adaptability to semi-arid regions and precocity when compared to fig trees from temperate regions, in all phenological stages; the studied cultivar showed promising results for cultivation in this region.

The ‘Roxo de Valinhos’ fig is one of the most widely grown varieties in the world, however, there are still few studies on the phenology and yield of fig trees, especially in semi-arid regions. This study evaluated the phenology and yield aspects of the ‘Roxo de Valinhos’ fig cultivar in Western Potiguar. The experiment was carried out from July to December 2015 in the didactic orchard of the Federal Rural University of the Semi-Arid, UFERSA. The following phenological aspects were analyzed: pruning at the beginning of budding, emergence and maturity of the first fruit, beginning of harvest, length and diameter of branches, number of fruits per branch, length and diameter of fruits, absolute growth rate, yield per plant, number of fruits per plant, and fruit weight. We used descriptive statistics; for quantitative and qualitative characteristics, we used regression analysis and means test, through Tukey´s test at 5% probability. Fig trees showed good adaptability to semi-arid regions and precocity when compared to fig trees from temperate regions, in all phenological stages; the studied cultivar showed promising results for cultivation in this region.