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Master's Dissertation
DOI
https://doi.org/10.11606/D.11.1980.tde-20220207-222501
Document
Author
Full name
Fernando José Hass
Institute/School/College
Knowledge Area
Date of Defense
Published
Piracicaba, 1980
Supervisor
Title in Portuguese
Correlações entre as concentrações de nutrientes nas folhas de Citrus sinensis (L.) Osbeck e Citrus sinensis x Citrus reticulata com algumas características do latossolo vermelho amarelo fase arenosa e latossol vermelho-escuro-orto
Keywords in Portuguese
CONCENTRAÇÃO DE NUTRIENTES
FOLHAS
LARANJA
LATOSSOLO VERMELHO-AMARELO ARENOSO
LATOSSOLO VERMELHO-ESCURO-ORTO
TANGOR MURCOTT
Abstract in Portuguese
Em pomares cítricos contendo as cultivares Pera, Valência, Hamlim, Natal (Citrus sinensis (L.) Osbeck) e Tanger Murcott (Citrus sinensis x Citrus reticulata , enxertados em limão cravo (Citrus limoniaOsbeck), correspondendo a 626,8 hectares na Região oeste do Estado de São Paulo, foram coletadas 78 amostras de solos e suas correspondentes foliares. Os solos apresentaram-se com media fertilidade, ocorrendo 64,1% das análises na faixa de pH entre 5,5 e 6,5; com capacidades de troca de cátions entre 4 a 7 e.mg/100 ml e estando 44,9% das amostras com mais de 70% em saturação de bases. Os resultados mostraram que as concentrações foliares: - nitrogênio, fósforo, cálcio, magnésio, cobre, zinco e boro apresentaram correlações com as funções granulométricas dos solos. - nitrogênio, fósforo, potássio, cálcio, magnésio, ferro, boro e sódio apresentaram correlações com o pH dos solos. - fósforo, magnésio, manganês e sódio correlacionaram-se positivamente com seus correspondentes nos solos. - potássio, cálcio e ferro não apresentaram correlações com os seus correspondentes nos solos. - cobre e zinco apresentaram correlações negativas com seus correspondentes nos solos.
Title in English
Correlation between nutrients concentrations in citrus leaves and soil analysis
Abstract in English
On a citrus area (628.6 ha.) at the east side of the State of São Paulo, Brazil, 78 composte leave samples were taken from trees (Citrus sinensis (L.) Osbeck e Citrus sinensis x Citrus reticulata grafted on (Citrus lomonia Osbeck). The same number of soil samples were analysed for the divers elements by laboratories convencional methods. The soils presents a medium fertility and were classified as a Latossol Vermelho Amarelo-orto and Latossol Vermelho Amarelo-fase arenosa. The soils are classified by U. S. soil taxonomy as Ustox or Orthox. The folowings correlations were observed between leave analysis and soil determinations: 1. Sand (0.2 - 2.0 mm.) - negative correlation: Ca, Mg, Cu no correlation: N, P, K, S, Fe, Mn, Zn, B, Na ; 2. Sand (0.02-0.2 mm.)- positive correlation: N, P, Cu negative correlation: Ca, Mg, Zn no correlation: K, S, Fe, Mn, B, Na; 3. Silt - positive correlation: Cu, B, Zn, negative correlation: Mg no correlation: N, P, K, Cu, S, Fe, Mn, Na; 4. Clay - positive correlation: Cu, Mg, B, Zn negative correlation: N, P, Cu no correlation: K, S, Fe, Mn, Na; 5. Leave concentrations in P, Mg, Mn, Na presents positive correlation with P, Mg, Mn, and Na contents in the soils; 6. Leave concentrations in K, Ca and Fe presents no correlations with K, Ca, Fe contents i n the soils; 7. Leave concentration in Cu, Zn presents negative correlations with Cu and Zn contents in the soils.
 
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Publishing Date
2022-02-07
 
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