Levantamento pedológico detalhado da estação experimental de Jundiaí, SP

Valadares, J. M. A. S.; Lepsch, I. F.; Küpper, A.

doi:10.1590/s0006-87051971000200017

Cited by 15 publications

(11 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The soil types in the area are Inceptisols, Ultisols and Oxisols (Valadares et al, 1971), and the main original rock is the schist. The basic characteristics, pH, sum of bases, CEC, base saturation, C, sand, silt, and clay contents are presented in Table 1.…”

Section: Methodsmentioning

confidence: 99%

Assessment of heavy metals in soils of a vineyard region with the use of principal component analysis

Valladares¹,

Camargo

Carvalho

et al. 2009

Sci. agric. (Piracicaba, Braz.)

View full text Add to dashboard Cite

Agricultural management with chemicals may contaminate the soil with heavy metals. The objective of this study was to apply Principal Component Analysis and geoprocessing techniques to identify the origin of the metals Cu, Fe, Mn, Zn, Ni, Pb, Cr and Cd as potential contaminants of agricultural soils. The study was developed in an area of vineyard cultivation in the State of São Paulo, Brazil. Soil samples were collected and GPS located under different uses and coverings. The metal concentrations in the soils were determined using the DTPA method. The Cu and Zn content was considered high in most of the samples, and was larger in the areas cultivated with vineyards that had been under the application of fungicides for several decades. The concentrations of Cu and Zn were correlated. The geoprocessing techniques and the Principal Component Analysis confirmed the enrichment of the soil with Cu and Zn because of the use and management of the vineyards with chemicals in the preceding decades.

show abstract

Section: Methodsmentioning

confidence: 99%

Assessment of heavy metals in soils of a vineyard region with the use of principal component analysis

Valladares¹,

Camargo

Carvalho

et al. 2009

Sci. agric. (Piracicaba, Braz.)

View full text Add to dashboard Cite

show abstract

“…The other data characterized were the soil contents of clay-sized particles, of oxidazable C, and of exchangeable Al, Ca, Mg, and K. Additionally, the total acidity (H + Al), the pH values measured in water and in 1 mol L -1 KCl and the soil contents of Fe, Al, and Si extractable with 9 mol L -1 H 2 SO 4 under boiling were also considered in the dataset used for the pedotransfer function development. Except for Prem and pH NaF, the values of the above-mentioned properties were provided by IAC; some of them had been cited in publications of Valladares et al (1971), Oliveira et al (1976), Oliveira et al (1979), Oliveira & Prado (1984;1987), Prado et al (1999), Bertolani et al (2000), Menk & Coelho (2000), Bognola et al (2003), and Prado et al (2003).…”

Section: Methodsmentioning

confidence: 99%

Remaining phosphorus estimated by pedotransfer function

Cagliari

Veronez

Alves³

2011

Rev. Bras. Ciênc. Solo

View full text Add to dashboard Cite

show abstract

“…Apresentavam espaçamento de 2 χ 1 metro, sendo conduzidas no sis tema de espaldeira de três fios com poda invernal em cordão esporonado. Encontravam-se em um solo que, dentre as unidades mapeadas pela Comissão de Solos em São Paulo, esquadra-se na Podzólico Vermelho Amarelo orto, correspondente ao subgrupo "Typic Paleudult" na classificação proposta pelo "Soil Survey Staff" (VALADARES, LEPSCH & KUPPER, 1971).…”

Section: Materiais ε Métodosunclassified

Efeitos de giberelinas e auxina na frutificação da videira 'Niagara Rosada'

Castro¹,

Ferraz²,

Scaranari

1974

An. Esc. Super. Agric. Luiz de Queiroz

View full text Add to dashboard Cite

Estudou-se a influência da aplicação, por imersão, de giberelinas e auxina (ácido 2-hidroximetil 4-clorofenoxiacético), 11 dias após o florescimento, nas características morfológicas da panícula da videira Vitis (labrusca x vinifera) 'Niagara Rosada'. Neste experimento verificou-se que, aplicação de giberelinas na concentração de 100 ppm em pós-florescimento, promoveu aumento no peso da panícula, número e peso das bagas, além de alongamento da ráquila, o que contribue para a formação de panículas com distribuição das bagas mais adequada. Tratamento com giberelinas 60 ppm + ácido 2-hidroximetil 4-clorofenoxiacético 50 ppm provocou aumento no peso da panícula, número e peso das bagas, sem contudo promover uma melhor distribuição das mesmas. Giberelinas na concentração de 500 ppm causou aumento na elongação das bagas com relação ao diâmetro, porém não apresentou nenhuma outra característica superior ao controle. Aplicação do ácido 2-hidroximetil 4-clorofenoxiacético em pós-fiorescimento, nas concentrações utilizadas, não apresentou resultados favoráveis na frutificação da 'Niagara Rosada', nas condições de estudo.

show abstract

Levantamento pedológico detalhado da estação experimental de Jundiaí, SP

Cited by 15 publications

References 5 publications

Assessment of heavy metals in soils of a vineyard region with the use of principal component analysis

Assessment of heavy metals in soils of a vineyard region with the use of principal component analysis

Remaining phosphorus estimated by pedotransfer function

Efeitos de giberelinas e auxina na frutificação da videira 'Niagara Rosada'

Contact Info

Product

Resources

About