Absorção de nutrientes pela planta de amendoim em cultura de primavera

Coelho, Fernando; Tella, Romeu de

doi:10.1590/s0006-87051967000100031

Cited by 4 publications

(4 citation statements)

References 7 publications

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“…Em média, os cultivares absorveram os macronutrientes, na seguinte ordem: nitrogênio (192kg/ha); potássio (60kg/ha); cálcio (26kg/ha); magnesio (20kg/ha); fósforo (13kg/ha) e enxofre (9kg/ha). Esses valores assemelham-se aos encontrados por RODRIGUES FILHO et al, (1986) com o cultivar Tatui-76 e são bem mais elevados do que os citados por COELHO & TELLA (1967) com o cultivar Tatu.…”

Section: Absorção E Acúmulo De Macronutrientesunclassified

Avaliação do crescimento e da utilização de nutrientes pelo amendoim

Feitosa¹,

Nogueira²,

Gerin³

et al. 1993

Sci. agric. (Piracicaba, Braz.)

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Avaliaram-se os padrões de crescimento e de absorção de macro e de micronutrientes de quatro cultivares de amendoim, sendo três de lançamento recente, IAC-Oirã, lAC-Poitara e IAC-Tupã, todos de porte ereto e um mais antigo, Penápolis, de hábito rasteiro. Os resultados obtidos mostraram que os cultivares recentes apresentaram o mesmo padrão de crescimento e de acúmulo dos nutrientes e o cultivar a rasteiro, de ciclo mais longo, apresentou um padrão ligeiramente diferente. Dentre os cultivares estudados, IAC-Tupã e IAC-Oirã apresentaram certa superioridade na eficiência de aproveitamento da matéria seca total produzida e do total de nutrientes translocados para a semente, órgão alvo da cultura do amendoim.

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Section: Absorção E Acúmulo De Macronutrientesunclassified

Avaliação do crescimento e da utilização de nutrientes pelo amendoim

Feitosa¹,

Nogueira²,

Gerin³

et al. 1993

Sci. agric. (Piracicaba, Braz.)

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“…Dry matter accumulation in the pods of the cultivar IAC 505 was greater between 105 and 147 DAE, also resulting in a greater DM accumulation in the plants for this same period. The most intense period in the DM accumulation in peanut plants occurs at the beginning of fruiting [8]. According to the authors, an appropriate amount of nutrients should be available in the soil for the plants at the fruiting period.…”

Section: Discussionmentioning

confidence: 99%

“…For IAC 505, maximum accumulation of plant DM (30% higher) and maximum accumulation rate (26% higher) occurred approximately ten days later than those for the other cultivars, contributing to its greater productive potential. However, a longer growth duration can represent more time for dry matter production and accumulation [8].…”

Section: Discussionmentioning

confidence: 99%

“…Brazil occupies a prominent position in worldwide peanut production, especially grown in crop rotation with sugarcane to improve soil fertility for the renovation of sugarcane fields [5] or in degraded pasture areas to recover the productive potential of forage grown after peanuts [6,7]. However, in both situations, the proper use of peanut fertilization is necessary, as this practice directly influences the crop yield [8].…”

Section: Introductionmentioning

confidence: 99%

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Dynamics of Macronutrient Uptake and Removal by Modern Peanut Cultivars

Crusciol

Portugal

Bossolani

et al. 2021

Plants

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The productive potential of new peanut cultivars has increased over the years in relation to old cultivars, especially when compared with ones with upright growth habit. Thus, the requirement for macronutrients for these new cultivars may also have increased, making the existing fertilizer recommendation tables obsolete, thus increasing the need for further studies measuring the real macronutrient requirements of these new peanut cultivars. Our study aimed to evaluate the growth patterns and the macronutrient absorption rate throughout the biological cycle of three modern runner peanut cultivars, as well as the potential for producing dry matter, pods, and kernels, and their respective macronutrient accumulations. The experimental design was a randomized complete block with split-plots and nine replications. The experimental plots consisted of three peanut cultivars (IAC Runner 886, IAC 505, and IAC OL3), and subplots consisted of nine plant samplings (14, 28, 42, 56, 70, 84, 105, 126, and 147 days after emergence (DAE)). Our results showed that modern peanut cultivars presented nutrient accumulation around 30 to 40 days earlier than older cultivars, as well as increasing the uptake by K and Ca. IAC 505 absorbed higher amounts of macronutrients and resulted in greater dry matter production compared with IAC OL3 and IAC Runner 886. Our study demonstrated that the most appropriate time for plants to find greater availability of nutrients in the soil is 70 to 84 DAE, in addition to highlighting the need for updates on nutritional recommendations for higher yields of modern peanut cultivars.

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Total uptake of nutrients at different stages of the growth of groundnut and the ratios in which various nutrient elements exist in groundnut plant

Loganathan

Krishnamoorthy

1977

Plant Soil

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Absorção de nutrientes pela planta de amendoim em cultura de primavera

Cited by 4 publications

References 7 publications

Avaliação do crescimento e da utilização de nutrientes pelo amendoim

Avaliação do crescimento e da utilização de nutrientes pelo amendoim

Dynamics of Macronutrient Uptake and Removal by Modern Peanut Cultivars

Total uptake of nutrients at different stages of the growth of groundnut and the ratios in which various nutrient elements exist in groundnut plant

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