A Review of Nitrogen Nutrition of Rubus

Strik, B.C.

doi:10.17660/actahortic.2008.777.61

Cited by 37 publications

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“…Este resultado é condizente com a importância decisiva, atribuída ao nutriente, para o crescimento vegetativo de amoreira-preta (Castaño et al, 2008;Strik, 2008;Strik & Finn, 2012). Quanto à variável massa de matéria seca de poda, 'Tupy' foi mais responsiva à adubação nitrogenada.…”

Section: Resultsunclassified

“…Ensaios de adubação têm sido conduzidos para determinar a dose ótima de nitrogênio em amoreiras e outras pequenas frutas (Jara-Peña et al, 2002;Quezada et al, 2007;Buskiene & Uselis, 2008;Kowalenko et al, 2008;Bryla et al, 2012;Banãdos et al, 2012). Esses ensaios, no entanto, têm apresentado resultados variáveis, em razão de diferenças na fertilidade do solo, idade das plantas e exigência das cultivares (Castaño et al, 2008;Strik, 2008;Strik & Finn, 2012).…”

Section: Introductionunclassified

“…O N é o elemento que a amoreira-preta necessita em maior quantidade e o principal responsável pelo crescimento, desenvolvimento e produção das plantas (Naraguma & Clark, 1998;Mohadjer et al, 2001;Strik, 2008). O conteúdo ótimo necessário para o crescimento da cultura está entre 2 e 5% da matéria seca das plantas (Castaño et al, 2008).…”

Section: Introductionunclassified

“…O conteúdo ótimo necessário para o crescimento da cultura está entre 2 e 5% da matéria seca das plantas (Castaño et al, 2008). Quando aplicado em manutenção, o N é alocado principalmente para o crescimento de novas hastes, folhas e frutos, enquanto o N já acumulado e armazenado nos tecidos da planta permanece nestes até o final da estação de crescimento (Naraguma et al, 1999;Strik, 2008).…”

Section: Introductionunclassified

“…No primeiro ano, recomenda-se a aplicação de 34 a 56 kg ha -1 , independentemente do hábito de crescimento da cultivar; a partir do segundo ano, de 56 a 78 kg ha -1 , para cultivares rasteiras, e de 56 a 90 kg ha -1 para cultivares de hábito ereto (Alleyne & Clark, 1997;Strik, 2008). A única indicação de adubação existente para amoreira-preta no Brasil não leva em consideração a cultivar, e recomenda doses de 0 a 100 kg ha -1 de N (15 g por planta, em espaçamento 0,5x3,0 m), em adubação de manutenção (Manual de adubação e calagem para os estados do Rio Grade Sul e Santa Catarina, 2004).…”

Section: Introductionunclassified

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Adubação nitrogenada e características agronômicas em amoreira-preta

Pereira

Picolotto

Messias

et al. 2013

Pesq. agropec. bras.

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Resumo -O objetivo deste trabalho foi avaliar a influência de doses crescentes de nitrogênio sobre o crescimento vegetativo, a produção e os níveis foliares de nutrientes da amoreira-preta (Rubus spp.). O experimento foi realizado com as cultivares Tupy e Xavante, na região sul do Rio Grande do Sul, de 2008 a 2012. Os tratamentos consistiram da aplicação de cinco doses de N (0,0, 7,5, 15,0, 22,5 e 30,0 g por planta), aplicados na adubação de manutenção, após a implantação da lavoura. Utilizou-se o delineamento de blocos ao acaso, com quatro repetições. Foram avaliadas as variáveis: densidade de hastes, massa de matéria seca de poda, índice de clorofila, produção por planta, número de frutos e composição nutricional das folhas (N, K, Ca, Mg e S). A adubação nitrogenada influenciou significativamente o crescimento vegetativo, a produção e a composição nutricional das folhas. As cultivares apresentaram resposta distinta à aplicação de N, em que 'Tupy' foi mais exigente que 'Xavante'. As doses de N atualmente recomendadas para a cultura da amoreira-preta são satisfatórias para a máxima produção de 'Xavante', mas insuficientes para 'Tupy'.Termos para indexação: Rubus, crescimento vegetativo, nitrogênio, nutrição mineral, pequenas frutas, produção. Nitrogen fertilization and agronomic characteristics in blackberryAbstract -The objective of this work was to evaluate the influence of increasing doses of nitrogen on vegetative growth, yield and leaf nutrient levels of blackberry (Rubus spp.). The experiment was carried out with the cultivars Tupy and Xavante, in southern state of Rio Grande do Sul, Brazil, from 2008 to 2012. It was used a randomized block design, with four replicates. Treatments consisted of five N doses (0.0, 7.5, 15.0, 22.5 and 30.0 g per plant), applied as maintenance fertilization after the crop establishment. The following variables were evaluated: cane density, pruned dry mass, chlorophyll index, yield, number of fruit, and nutritional composition of leaves for N, K, Ca, Mg and S. The fertilization treatments significantly influenced the vegetative growth, yield, and nutrient composition of leaves. The cultivars responded differently to nitrogen application, with 'Tupy' being more demanding than 'Xavante'. The currently recommended nitrogen rate for blackberry cultivation is suitable for maximum yield of 'Xavante', but it is not sufficient for 'Tupy'.

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Section: Resultsunclassified

Section: Introductionunclassified

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Adubação nitrogenada e características agronômicas em amoreira-preta

Pereira

Picolotto

Messias

et al. 2013

Pesq. agropec. bras.

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Twenty‐five‐year response of the herbaceous layer of a temperate hardwood forest to elevated nitrogen deposition

et al. 2016

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. 2016. Twenty-five-year response of the herbaceous layer of a temperate hardwood forest to elevated nitrogen deposition. Ecosphere 7(4):e01250. 10. 1002/ecs2.1250 Abstract. Increasing rates of atmospheric deposition of nitrogen (N) present a novel threat to the biodiversity of terrestrial ecosystems. Many forests are particularly susceptible to excess N given their proximity to sources of anthropogenic N emissions. This study summarizes results of a 25-yr treatment of an entire central Appalachian hardwood forest watershed via aerial applications of N with a focus on effects of added N on the cover, species richness, and composition of the herbaceous layer. Research was carried out on two watersheds of the Fernow Experimental Forest (FEF), West Virginia. The long-term reference watershed at FEF (WS4) was used as a reference; WS3 was experimentally treated, receiving three aerial applications of N per year as (NH 4 ) 2 SO 4 totaling 35 kg N ha −1 yr −1 , beginning in 1989. Cover of the herbaceous layer (vascular plants ≤1 m in height) was estimated visually in five circular 1-m 2 subplots within each of seven circular 400-m 2 sample plots spanning all aspects and elevations of each watershed. Sampling was carried out in early July of each of the following years : 1991, 1992, 1994, 2003, and 2009-2014, yielding 10 yr of data collected over a 23-yr period. It was anticipated that the N treatment on WS3 would decrease species richness and alter herb layer composition by enhancing cover of a few nitrophilic species at the expense of numerous N-efficient species. Following a period of minimal response from 1991 to 1994, cover of the herb layer increased substantially on N-treated WS3, and remained high thereafter. There was also a coincidental decrease in herb layer diversity during this period, along with a sharp divergence in community composition between WS4 and WS3. Most changes appear to have arisen from unprecedented, N-mediated increases of Rubus spp., which are normally associated with the high-light environment of openings, rather than beneath intact forest canopies. These findings support the prediction that N-mediated changes in the herbaceous layer of impacted forests are driven primarily by increases in nitrophilic species.

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Nitrogen, irrigation, and alley management affects raspberry crop response and soil nitrogen and root‐lesion nematode dynamics

Kuchta

Neilsen

Zebarth

et al. 2021

Soil Science Soc of Amer J

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There is a need to improve raspberry crop nitrogen (N) management practices, particularly when grown over aquifers vulnerable to nitrate (NO 3 ) leaching. This study quantified the effects of N, irrigation and alley management strategies on berry yield, indices of crop vigor and N status, growing season soil N dynamics, and root-lesion nematode (RLN) population dynamics under red raspberry production in British Columbia, Canada. Conventional management (100 kg N ha −1 surface broadcast on the row, clean cultivation of alleys, and drip irrigation for a fixed duration regardless of evapotranspiration [ET]) was compared with different mineral fertilizer N rates, application of N as manure, seeding the alley to either a perennial forage grass (perennial ryegrass [Lolium perenne L.] and 'Bridgeport II' chewings fescue [Festuca rubra subsp. commutate]) or an autumn-seeded spring barley crop, or ET-scheduled irrigation. In addition, the combination of ET-scheduled irrigation plus fertigation of a reduced rate of N was compared with conventional practices at a reduced N rate. There was little or no crop response to N source and rate, a finding attributed primarily to high nonmanaged N inputs, and possibly also to RLNs present at population densities (grand mean = 4 per cm 3 soil) expected to suppress raspberry growth. ET-scheduled irrigation reduced water use ∼50% compared with fixed-duration irrigation without compromising crop performance. The perennial forage grass in the alley reduced soil mineral N but not yield. Taken together, these findings demonstrate that more environmentally sustainable raspberry production can be achieved through integrated management systems even in soils vulnerable to NO 3 leaching.

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A Review of Nitrogen Nutrition of Rubus

Cited by 37 publications

References 0 publications

Adubação nitrogenada e características agronômicas em amoreira-preta

Adubação nitrogenada e características agronômicas em amoreira-preta

Twenty‐five‐year response of the herbaceous layer of a temperate hardwood forest to elevated nitrogen deposition

Nitrogen, irrigation, and alley management affects raspberry crop response and soil nitrogen and root‐lesion nematode dynamics

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