Nutrient extraction and exportation by castor bean hybrid lyra

Nascimento, Martha Santana do; Crusciol, Carlos Alexandre Costa; Fernandes, Adalton Mazetti; Zanotto, Maurício Dutra

doi:10.1590/s0100-06832012000100013

Cited by 4 publications

(5 citation statements)

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“…Otherwise, in general, better management of fertilization would consist of application of the nutrients required at the moment exactly before specific developmental stages of the plant (NASCIMENTO et al, 2012). The establishment of these data and values is being conducted by studies termed "absorption march", which consist of research intended to establish the absorbed amounts of nutrients according to the age and/or physiological stage of a plant (ECHER; DOMINATO;CRESTE, 2009).…”

Section: Introductionmentioning

confidence: 99%

Peanut Plant Nutrient Absorption and Growth

et al. 2017

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-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.Keywords: Arachis hypogaea L.. Growth rate. Plant nutrition. ABSORÇÃO DE NUTRIENTES E CRESCIMENTO DE PLANTAS DE AMENDOIMRESUMO -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. Palavras-chave:Arachis hypogaea L.. Nutrição de plantas. Taxa de crescimento.

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Section: Introductionmentioning

confidence: 99%

Peanut Plant Nutrient Absorption and Growth

et al. 2017

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“…Decreasing Mg contents may be associated with Ca antagonistic results since Ca concentration was high in the leaf Research, Society and Development, v. 11, n. 14, e404111436377, 2022 (CC BY 4.0) | ISSN 2525-3409 | DOI: http://dx.doi.org/10.33448/rsd-v11i14.36377 6 tissues. Moreover, these two nutrients have very similar chemical properties, including degree of valence and mobility, and therefore they compete with one another by adsorption sites in the soil and absorption sites on roots (Nascimento et al, 2012). Another possible explanation was provided by Fernandes et al (2017), where reductions in leaf Mg content with increasing doses may be linked to potassium concentrations in the biofertilizer.…”

Section: Resultsmentioning

confidence: 99%

Diagnosis of leaf nutrient content for ‘common’ arrowroot plants fertilized with ovine manure

Lima

Borges

Marinho

et al. 2022

RSD

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Despite arrowroot’s (Maranta arundinaceae L.) appeal in several industry sectors, which indicates high potential for large-scale production, few studies have investigated the nutritional status of this crop species. Given the economic relevance of the crop and the limited data in the literature, the objective of this work was to evaluate the nutritive effect of the ovine biofertilizer in the cultivation of arrowroot ‘comum’, in two evaluation periods 180 and 272 days after planting (DAP). The experiment was laid out as a split-plot randomized complete block design with four replicates. Leaf contents of nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), magnesium (Mg), sulfur (S), iron (Fe), zinc (Zn), copper (Cu), manganese (Mn), boron (B), and sodium (Na) were determined. High K and Na contents were observed in arrowroot leaves. The sheep biofertilizer is suitable to meet the nutritional needs of arrowroot ‘common’. The continuous application of biofertilizer provided higher levels of nutrients at 272 days after planting.

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“…In the season crop, P and K were also allocated in a lower ratio in reproductive structures, while the allocation of these nutrients in the reproductive structures was above 60% of the total accumulated in the shoot in the off-season. The results indicate that in the off-season, when water deficit stress is higher (Figure 1), the castor plant changes the partitioning of DM and some nutrients in favor of raceme growth (Nascimento et al, 2012). DM and nutrient partitioning change occurs because water restriction triggers phenological evolution acceleration in the crop, which seeks to perpetuate the species by increasing the development of plant organs that ensure survival.…”

Section: Resultsmentioning

confidence: 99%

“…Therefore, studies have been conducted to assess the nutritional requirement of modern castor bean hybrids (Crusciol et al, 2012a;Crusciol et al, 2012b;Nascimento et al, 2012). However, little research has been conducted to evaluate dynamic allocation of biomass and nutrients in different castor plant organs (Hocking, 1982), as well as the contribution of these processes to the crop final yield.…”

Section: Introductionmentioning

confidence: 99%

“…However, such processes are highly dependent on plant nutritional status, given that nutrients are implicated in several physiological processes related to vegetative development, ripening and senescence (Moreira & Fageria, 2009). Some research has indicated that, in castor plants, nutrient demand is associated to DM accumulation (Crusciol et al, 2012a;Crusciol et al, 2012b;Nascimento et al, 2012), showing that higher DM production is consequently followed by higher nutritional demands. However, plant nutrient demand may not vary according to yield, as when fruiting is low, leaf and stem vegetative growth may replace the fruit as carbohydrate and nutrient sinks in the plant (Malavolta et al, 2002).…”

Section: Introductionmentioning

confidence: 99%

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Dry matter and nutrient partitioning in Castor plants in two growing seasons

Castro¹,

Crusciol²,

Fernandes³

et al. 2017

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The aim of the present study was to evaluate dry matter partitioning and macro-and micronutrient accumulation and distribution in small-sized castor plants grown in season and off-season. The experiments were conducted during the 2005-2006 season and in the 2006 off-season in an Oxisol. A completely randomized block design was used, with eight replications. Plots consisted of plant sampling periods, which were conducted in the vegetative period (17 days after emergence -DAE), the grain fill period (between 73 and 80 DAE) and at end of the cycle (120 DAE). Castor leaves accumulated most of dry matter (DM) and macroand micronutrients in the vegetative period, regardless of the growing period. In the following cycle periods, most of biomass and nutrients were located in the reproductive structures and grains, especially in the offseason crop. It was concluded that leaves and stems are strong nutrient sinks in the castor plant in season crops, while lower water availability during off-season induces plants to use physiological mechanisms to allocate more resources (biomass and nutrients) for their reproduction.Additional keywords: dry matter; macronutrients; micronutrients; Ricinus communis; source/sink relation. ResumoObjetivou-se neste estudo avaliar a partição de matéria seca, o acúmulo e a distribuição de macro e micronutrientes em mamona de porte baixo, cultivada na safra e na safrinha. Os experimentos foram conduzidos na safra de 2005-2006 e na safrinha de 2006, em Latossolo Vermelho distroférrico. Utilizou-se do delineamento em blocos casualizados, com oito repetições. As parcelas foram constituídas pelas épocas de coleta de plantas, que foram realizadas na fase vegetativa (17 dias após a emergência -DAE), na fase de enchimento de grãos (entre 73 e 80 DAE) e no final do ciclo (120 DAE). As folhas da mamoneira, na fase vegetativa, acumularam a maior parte da matéria seca (MS) e dos macros e micronutrientes, independentemente da época de cultivo. Nas fases seguintes do ciclo, a maior proporção de biomassa e nutrientes estava presente nas estruturas reprodutivas e nos grãos, especialmente no cultivo de safrinha. Conclui-se que, no cultivo de safra, as folhas e os caules são fortes drenos de nutrientes na planta de mamona, enquanto na safrinha a menor disponibilidade hídrica faz com que as plantas utilizem mecanismos fisiológicos para alocar mais recursos (biomassa e nutrientes) para sua reprodução.Palavras-chave adicionais: macronutrientes; matéria seca; micronutrientes; relação fonte/dreno; Ricinus communis.

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Nutrient extraction and exportation by castor bean hybrid lyra

Abstract: index terms: Ricinus communis, uptake curves, uptake rates, seed yield.

Cited by 4 publications

References 14 publications

Peanut Plant Nutrient Absorption and Growth

Peanut Plant Nutrient Absorption and Growth

Diagnosis of leaf nutrient content for ‘common’ arrowroot plants fertilized with ovine manure

Dry matter and nutrient partitioning in Castor plants in two growing seasons

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