Resposta diferencial de cultivares de algodão ao manganês em solução nutritiva

Rosolem, Ciro Antônio; Ferelli, L.

doi:10.1590/s0100-06832000000200013

Cited by 6 publications

(4 citation statements)

References 12 publications

(14 reference statements)

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“…The excess of Mn can cause toxity in the plant. According to [20], in tropical soil and subtropical that are acid, the avaibility of Mn is higher, this situation increase the chance of occurring the toxic of the plants.…”

Section: Resultsmentioning

confidence: 99%

Diagnosis and Recommendation Integrated System (DRIS) to Assess the Nutritional State of Cotton Crop in Brazil

Serra¹,

Marchetti²,

Ensinas³

et al. 2014

AJPS

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The diagnosis of nutritional state is an important tool to understand the nutritional requirement of plants and the influence of the nutritional balance on the yield. The proposed in this study was to apply the Diagnosis and Recommendation Integrated System (DRIS) to assess the nutritional state of cotton crop through the order of nutrient requirement and nutritional balance. Yield data from plots (average acreage 100 ha) and foliar concentrations of macro and micronutrients of cotton (Gossypium hirsutum r. latifolium) plants were stored in a database. The criterion to define the reference population consisted of plots with above-average yields + 2/3 standard deviation (over 4785 kg•ha −1 seed cotton yield). The DRIS method was efficient to evaluate the nutrition state of cotton. It was feasible to identify the order of plant requirement and nutritional balance. It was feasible to observe that when minor the Nutritional Balance Index (NBI) it's higher the yield. It means that to reach high yield it is necessary to show low NBI. The Sulphur, Boron and Zinc showed the higher frequency as the most required nutrients by plant. The Magnesium and Manganese were the less required by the cotton plant, this means that both of them were limiting the yield by excess in the tissue.

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Section: Resultsmentioning

confidence: 99%

Diagnosis and Recommendation Integrated System (DRIS) to Assess the Nutritional State of Cotton Crop in Brazil

Serra¹,

Marchetti²,

Ensinas³

et al. 2014

AJPS

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“…Rosolem & Ferelli (2000) observaram sintomas semelhantes em plantas de algodão. Os sintomas de clorose podem ter sido causados por um distúrbio na estrutura do cloroplasto, como conseqüência da inibição na síntese de lipídios (Romheld, 2001).…”

Section: Resultsunclassified

Efeito de deficiência de micronutrientes no estado nutricional da mamoneira cultivar Iris

Lange

Martines

Camacho

et al. 2005

Pesq. agropec. bras.

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Micronutrient deficiency effect on the nutritional status of the castor bean cultivar IrisAbstract -The objectives of this work were to characterize the visual symptoms of micronutrient deficiencies, and their effects on nutricional status of castor beans. A greenhouse experiment with nutrient solutions was carried out from February to June, 2003. The commercial hybrid "Iris" was used. Treatments were as follows: complete, minus B, minus Cu, minus Fe, minus Mn, minus Mo, and minus Zn. Symptoms of deficiency were observed in the treatments with omission of B, Fe, and Mn. The symptoms firstly developed when either Fe or Mn was deficient, and they were followed by those deficient in boron. Dry matter yield was affected in the decreasing order: Fe>Mn>B. Both upper and lower leaves reflect the nutritional status of the castor bean with respect to B, Cu, Fe, Mn, Mo and Zn. Leaf chlorophyll, as measured in units SPAD, was influenced by the treatments.

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“…Most studies of manganese are con-cerned to toxicity. In recent years, however, the cases of Mn deficiency have appeared in several crops grown in "cerrado" soils, such as soybean (Abreu et al, 1996;Oliveira Jr. et al, 2000;Mann et al, 2001), cotton (Rosolem & Ferelli, 2000), rice (Pereira et al, 2001), and bean Kikuti et al, 1998). For soybean, the application of Mn on deficient soils is recommended, and a rate of 350 g ha -1 via leaves is preconized (Embrapa, 2001).…”

Section: Introductionmentioning

confidence: 99%

Manganese and zinc leaf application on common bean grown on a "Cerrado" soil

Teixeira¹,

Borém²,

Araújo³

et al. 2004

Sci. agric. (Piracicaba, Braz.)

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The occurrence of micronutrient deficiencies, mainly of manganese (Mn) and zinc (Zn) in "cerrado" soils, has been increasing in several crops, including bean. Such a problem is caused by high rates of liming material applied entirely on the soil surface. In this study, the effects of the leaf application of Mn and Zn rates were evaluated. Three experiments were carried out: two in greenhouse and one under field conditions. The greenhouse experiments were set up using a randomized block design and a 5 x 5 factorial, with three replicates, consisting of five rates of Mn (0, 75, 150, 300, and 600 g ha -1 ) and five rates of Zn (0, 50, 100, 200, and 400 g ha -1 ) applied via leaves at the 25 th day, or both alternatively parceled at 25 and 35 days after emergency (DAE), respectively, for the first and second experiments. In the field experiment, a randomized block design was used with four replicates, and the same treatments as those used in the greenhouse. Leaf applications performed at 25 and 35 DAE were efficient in correcting the symptoms of the Mn and Zn deficiencies. The combined application of Mn and Zn caused an increase in plant height, primary yield components as number of grains per pod, number of pods per plant, and productivity itself.

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Resposta diferencial de cultivares de algodão ao manganês em solução nutritiva

Abstract: RESUMO

Cited by 6 publications

References 12 publications

Diagnosis and Recommendation Integrated System (DRIS) to Assess the Nutritional State of Cotton Crop in Brazil

Diagnosis and Recommendation Integrated System (DRIS) to Assess the Nutritional State of Cotton Crop in Brazil

Efeito de deficiência de micronutrientes no estado nutricional da mamoneira cultivar Iris

Manganese and zinc leaf application on common bean grown on a "Cerrado" soil

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