Respostas de crescimento da pupunheira à adubação NPK

Bovi, Marilene Leão Alves; Godoy, G.; Spiering, Sandra Heiden

doi:10.1590/s0103-90162002000100023

Cited by 24 publications

(22 citation statements)

References 6 publications

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“…In addition, an adequate supply of fertilizer is necessary to promote a greater initial growth (Bovi et al 2002). Experiments with fertility may help to determine which nutrients are most limiting to plant development (Lopes 2001, Viégas et al 2004).…”

Section: Palavras-chave: Euterpe Oleraceamentioning

confidence: 99%

Nutrient omission effect on growth and nutritional status of assai palm seedlings1

Araújo

Viégas

Cunha

et al. 2016

Pesqui. Agropecu. Trop.

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The Amazonian assai palm has a great socioeconomic importance, but most of its commercial plantations take place in uplands and low natural fertility soils, what may hinder its development. This study aimed at evaluating the effect of nutrient omission on growth and nutritional status of assai palm seedlings (Ver-o-Peso cultivar). The experimental design was completely randomized, with 14 treatments and 5 replicates. The treatments consisted of complete fertilization with liming; no fertilization and no liming (control); complete fertilization with individual omission of N, P, K, Ca, Ca with no liming, Mg, Mg with no liming, S, B, Cu and Zn. Plant height, stem diameter and dry mass, leaf and total shoot dry mass, and leaf nutrients content and accumulation were evaluated. The initial growth of the assai palm plants was limited by the omission of P, N, K, Ca, Mg and Cu. The production of leaf dry mass was decreasingly affected by the omission of P > Cu > N > K > Mg, while leaf area was limited by the individual omissions of Ca > N > P > K > Mg > Zn. Plant development, measured by relative growth of shoots, was affected by lack of Ca > P > N > Mg > Cu > K, with an average reduction of 31 %. The nutrients most needed by the assai palm plants, as evidenced by nutrients contents and accumulation in the leaf dry mass, are: N > K > S > Ca > Mg > P > Mn > Zn > B > Cu.

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Section: Palavras-chave: Euterpe Oleraceamentioning

confidence: 99%

Nutrient omission effect on growth and nutritional status of assai palm seedlings1

Araújo

Viégas

Cunha

et al. 2016

Pesqui. Agropecu. Trop.

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“…Por sua vez a dose 0 apresentou apenas 56,3% das suas plantas perfilhadas aos 12 meses no campo. Esses valores são superiores aos encontrados por Bovi et al (2002) com doses similares de nitrogênio aplicado periodicamente como fertilizante químico. Nesse caso, a porcentagem máxima de plantas perfilhadas foi 40%, com um perfilho por planta em média, para a dose maior (400) aos 12 meses de plantio.…”

Section: Resultsunclassified

Aplicação de biossólido na implantação da cultura da pupunheira

et al. 2004

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Avaliaram-se os efeitos de doses de biossólido aplicadas no sulco de plantio sobre a produção de fitomassa aérea de pupunheiras durante o primeiro ano do cultivo. O experimento foi instalado em Ubatuba (SP), tendo sido estudado quatro doses de lodo de esgoto (equivalentes a 0; 100; 200 e 400 kg ha-1 de N), em esquema de blocos ao acaso, com seis repetições e quatro tratamentos. Foram utilizadas mudas com 10 meses de idade e densidade de plantio de 5.000 plantas ha-1. As respostas da planta às doses de biossólido foram avaliadas mensalmente, por meio de alguns caracteres diretamente relacionados ao crescimento e à produção de palmito. Com base na altura da planta foi estimado o acúmulo periódico da fitomassa aérea fresca da haste principal, ao longo do tempo. Houve diferença estatística a partir do 5º mês de plantio para as diferentes doses, tempo em que a planta se adaptou ao campo e em que os nutrientes do biossólido começaram a ser assimilados. A resposta positiva no acúmulo de fitomassa aérea da pupunheira ao aumento de doses de biossólido antecipou o tempo para a primeira colheita na dose mais elevada, com 15% de plantas prontas para corte já aos 12 meses após a implantação da cultura. Houve também aumento no número de perfilhos por planta e na porcentagem de plantas perfilhadas em função das doses. Um ano após a aplicação de biossólido, pupunheiras da maior dose tinham, em média, cerca de 27 t ha-1 de fitomassa aérea total (base fresca), 3,3 perfilhos por planta e 77% de plantas perfilhadas.

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“…It should be pointed out that plant responses to liming are not long-lasting, especially in crops where nitrogen applications are high and frequent, as in peach palm (Bovi, 1998b, Bovi et al, 2002Ares et al, 2002a;Schroth et al, 2002). Therefore, soil acidity and liming needs should be monitored by periodical soil testing.…”

Section: Resultsmentioning

confidence: 99%

“…Sustained high yields, as well as the economic lifespan of each stand require high annual fertilizer applications (Cantarella & Bovi, 1996;Bovi et al, 2002;Schroth et al, 2002;Ares et al, 2003).…”

Section: Introductionmentioning

confidence: 99%

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Peach palm growth and heart-of-palm yield responses to liming

Bovi

Spiering

Saes³

2004

Rev. Bras. Ciênc. Solo

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SUMMARYThe effects of liming rates on growth and heart-of-palm yield of peach palm plants (Bactris gasipaes Kunth) were studied in a two-year field experiment conducted in Pariquera-Açu, State of Sao Paulo, Brazil. Soils in this region are allic (sub group Ultic Haplorthox), with base saturation ranging from 15 to 26 % of the cation exchange capacity (CEC). A randomized complete block design, with five rates of dolomitic limestone (0, 0.7, 4.7, 8.7, and 14.6 Mg ha -1 ) and five replications was utilized. Individual plots were composed of 80 plants but only the inner rows (24 plants) were used for data recording. Planting spacing was 2 x 1 m. There was a cubic effect of liming rates on growth and yield. Maximum heart-of-palm yield was estimated to be achieved at 4.3 Mg ha -1 of limestone application, corresponding to 51.4 % soil base saturation. A significant decrease in growth and yield was observed when large amounts of limestone were applied (8.7 and 14.6 Mg ha -1 ), probably due to a decreased micronutrient availability. (0, 0,7, 4,7, 8,7 e 14,

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Respostas de crescimento da pupunheira à adubação NPK

Cited by 24 publications

References 6 publications

Nutrient omission effect on growth and nutritional status of assai palm seedlings1

Nutrient omission effect on growth and nutritional status of assai palm seedlings1

Aplicação de biossólido na implantação da cultura da pupunheira

Peach palm growth and heart-of-palm yield responses to liming

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