Soil and plant analyses for lime and fertilizer recommendations in Brazil

Cantarella, Heitor; Raij, Bernardo van; Quaggio, J. A.

doi:10.1080/00103629809370060

Cited by 72 publications

(58 citation statements)

References 20 publications

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“…In soils where ECEC is more than 3.0 cmol c kg-I, the kg Ca 2 + ha-I exceeds the sum of the Mg2+ + K+ and it is expected that Ca 2 + will under these circumstances replace adsorbed Mg2+ and K+ and thereby increase their concentration in the soil solution, improving their uptake and therefore the growth and grain production of maize. These results support the recommendation of Graham (1959) with regard to, the optimum range for Ca 2 + as 65-85% of the ECEC and the findings of Cantarella et al (1998) who advised Ca 2 + to be increased to 70% of the ECEC for maize production. Extrapolation of Figure 4 shows that the RY reaches 90% when Ca%ECEC=70%.…”

Section: Resultssupporting

confidence: 81%

“…However, Eckert and McLean (1981) and Liebhardt (1981) found that there is no ideal BCSR or ratio range for all crops and indicated that wide ratios or ranges of Ca 2 + and Mg 2 + had no influence on maize yields as long as soil pH was in the 5.5-6.0 range. In Brazil, however, Cantarella et al (1998) applied research results very successfully to calculate agricultural lime rates to raise the soil base saturation to an optimum percentage in their soils. They increased Ca 2 + as a percentage of the CEC to levels which varied with crop species, i.e.…”

Section: Introductionmentioning

confidence: 99%

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An evaluation of the basic cation saturation ratio concept in sandy soils of the Free State Province, South Africa

Biljon

Fouche

Botha³

2007

South African Journal of Plant and Soil

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" Results of the first plantings of field trials conducted at six localities on sandy soils in the Free State Province of South Africa are presented. The effective cation exchange capacity (ECEC) and Ca 2 +, Mg2+, K+ as a percentage of the soils ECEC (Cation%ECEC) and the ratios amongst these cations were calculated. The average relative yields (RY) of maize were determined for the reference treatments (Ca+Mg+K) which received all essential nutrients arid for the other three treatments which received the same nutrients except that Ca 2 +or Mg2+or K+ were omitted. The ECEC values of the topsoil samples ranged from 1.3 to 4.2 cmol c kg-1 . The cations as a percentage of the ECEC ranged from 33-69% for Ca 2 +, 14-32% for Mg2+ and from 6-22% for K+. The relative proportions in which the three individual cations were present changed as the ECEC of the soils increased. The Ca 2 + increased in relation to the Mg2+ and K+ and the K%ECEC diminished as the ECEC increased. Results supported the basic cation saturation ratio (BCSR) concept as far as that Ca 2 + should make up at least 65% of the ECEC to assure RY's of more than 80%. This is not mainly caused by the increase in Ca 2 + as a plant nutrient, but rather by making adsorbed Mg2+and K+ more available to plants. Under these conditions it is important that Mg2+ and K+ must be available in sufficient quantities to meet the requirements of the crop.

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Section: Resultssupporting

confidence: 81%

Section: Introductionmentioning

confidence: 99%

An evaluation of the basic cation saturation ratio concept in sandy soils of the Free State Province, South Africa

Biljon

Fouche

Botha³

2007

South African Journal of Plant and Soil

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“…Como o DTPA-TEA tem-se demonstrado melhor nas correlações entre os teores de Fe, Cu, Mn e Zn em solos e nas plantas (Abreu, 1995;Cantarella et al, 1998), resolveu-se adotar os limites das faixas de interpretação consideradas altas por Raij et al (1996), os quais se basearam nos teores disponíveis dos micronutrientes estudados pelo referido extrator. Nesse sentido, todos os valores acima de 5, 5, 1,6 e (1) Nelson et al (1953).…”

Section: Resultsunclassified

“…No Brasil, as melhores correlações entre os teores de Cu, Fe, Mn e Zn em solos e os teores desses nas plantas têm sido obtidas para o método que emprega a solução DTPA-TEA como extratora (Abreu, 1995;Cantarella et al, 1998). As soluções Mehlich-1 e ácido clorídrico, utilizadas em alguns estados, apresentaram resultados iguais ou inferiores aos obtidos com a solução de DTPA-TEA (Ribeiro & Sarabia, 1984;Abreu, 1995).…”

Section: Introductionunclassified

Comparação de métodos de extração de cobre, zinco, ferro e manganês em solos do estado do Rio de Janeiro

Pereira

Pérez

Valladares

et al. 2001

Rev. Bras. Ciênc. Solo

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RESUMOAs conseqüências da deficiência ou toxidez de micronutrientes na produção agrícola do estado do Rio de Janeiro são pouco conhecidas. Desta forma, em 1997, foram quantificados os teores de cobre, zinco, ferro e manganês em 103 amostras de horizontes superficiais de solos representativos do estado, sendo utilizados os extratores Mehlich-1, DTPA-TEA e HCl 0,1 mol L -1 . De maneira geral, o extrator HCl 0,1 mol L -1 foi o que apresentou maior poder de extração dos micronutrientes estudados, tendo o Mehlich-1 extraído as menores quantidades de cobre e ferro e o DTPA-TEA as menores quantidades de zinco e manganês. Segundo os resultados, equações de conversão entre extratores, para um mesmo elemento, e a utilização de faixas de interpretação desenvolvidas para regiões edáficas diferentes das condições do trabalho podem não estimar corretamente a disponibilidade dos micronutrientes às plantas.Termos de indexação: micronutrientes, fertilidade dos solos, extratores.

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“…Studies carried out by [24] showed that the best correlations between the Zn or Cu contents in soils and the concentrations of these micronutrients in plants were obtained by the method that uses a solution of diethyl triamine penta-acetic acid (DTPA) as extractor when compared Table 9. Chemical composition of vinasse originating from different musts.…”

Section: Micronutrientsmentioning

confidence: 99%

Mineral Nutrition and Fertilization of Sugarcane

Oliveira¹,

Macedo²,

Martins³

et al. 2018

Sugarcane - Technology and Research

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Sugarcane extracts large amounts of nutrients from the soil and accumulates them in the plant due to its large mass production. Thus, agricultural practices ensuring adequate supply of nutrients to the crop must be adopted to obtain high crop yields in the cane plant cycle and small decreases in the subsequent cycles. In this chapter, the following items will be addressed and discussed: soil sampling, soil fertility evaluation, liming, plastering, cane plant chemical fertilization, sprout chemical fertilization, sugarcane nutritional status evaluation, organic fertilization, use of cultural remains and residues from sugar and alcohol industry, use of humic substances, fertilization, and quality of the sugarcane broth.

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Soil and plant analyses for lime and fertilizer recommendations in Brazil

Cited by 72 publications

References 20 publications

An evaluation of the basic cation saturation ratio concept in sandy soils of the Free State Province, South Africa

An evaluation of the basic cation saturation ratio concept in sandy soils of the Free State Province, South Africa

Comparação de métodos de extração de cobre, zinco, ferro e manganês em solos do estado do Rio de Janeiro

Mineral Nutrition and Fertilization of Sugarcane

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