Data/hora: 21/06/2024 01:50:35

Biblioteca(s): | Embrapa Pecuária Sudeste; Embrapa Solos.
Tipo da produção científica: | Artigo em Periódico Indexado
Data corrente: | 04/07/2006
Data da última atualização: | 19/10/2021
Autoria: | RUSCHEL, J.; CARMELLO, Q. A. de C.; BERNARDI, A. C. de C.; CARVALHO, S. A. de; MATTOS JUNIOR, D.
Afiliação: | JONAS RUSCHEL, LEGALIZA REGISTROS; QUIRINO AUGUSTO DE CAMARGO CARMELLO, USP/ESALQ, PIRACICABA, SP.; ALBERTO CARLOS DE CAMPOS BERNARDI, CNPS; SÉRGIO ALVES DE CARVALHO, APTA, CORDEIROPOLIS, SP.; DIRCEU MATTOS JUNIOR, APTA, CORDEIROPOLIS, SP.
Título: | Leaf nutrient contents of rangpur lime rootstock as afected by N, P, K, Ca and S fertilization.
Ano de publicação: | 2004
Fonte/Imprenta: | Scientia Agricola, v. 61, n. 5, p. 501-506, set./out. 2004.
DOI: | https://doi.org/10.1590/S0103-90162004000500007
Idioma: | Inglês
Conteúdo: | Analysis of leaf nutrient contents can demonstrate plant nutritional status, identify symptoms of deficiency and toxicity, and evaluate the need to adjust fertilization programs. This research determined N:P:K:Ca:S rates for optimal nutrition of Rangpur lime - RL (Citrus limonia Osb.) rootstock, in an experiment arranged in a fractional factorial design of the (1/25 ) [cinco elevado a quatro] type, with 25 treatments distributed within five blocks. Seedlings of RL were transplanted into 3.8-dm³ containers filled with commercial growing media, when plant height = 10 cm, in a nursery. Treatments consisted of the following nutrient rates (g per plant): N= 0.31, 0.62, 1.25, 2.5 and 5; K= 0.4, 0.62, 1.25, 2.5 and 5; P= 0.35, 1.0, 2.0, 3.0 and 4.0; and Ca= 3.5, 5.0, 6.0, 7.0 and 8.0. Phosphorus and Ca were applied to the compost before transplant of seedlings, while N and K were applied later and total amounts were split into 20 weekly applications via fertigation. Nutrient sources were triple super phosphate, gypsum, NH4NO3 and KCl. Leaf nutrient concentrations of five-mo-old plants were high or in excess for N, P, K and S. Calcium and Mg concentrations were low. Greater dry mass of plants were observed at nutrient rates of N= 3.5, P= 2.7, K= 2.0, and Ca= 6.5 g per plant.
Palavras-Chave: | leaf analysis; mineral nutrition; response surface.
Thesagro: | Citrus Limonia.

Categoria do assunto:

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P Recursos Naturais, Ciências Ambientais e da Terra

URL:

http://ainfo.cnptia.embrapa.br/digital/bitstream/item/227043/1/Leaf-nutrient-contents-of-rangpur-lime-rootstock-2004.pdf
http://ainfo.cnptia.embrapa.br/digital/bitstream/item/125219/1/Ruschel-et-al-2004-Scientia-Agricola.pdf

Registro original: | Embrapa Solos (CNPS)

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CPPSE - (22987-1) - UPC - AP - DD - PRODI-2004.00220 - RUS - 2004.00220 - DIS
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