Distribuição vertical do fósforo no solo em função dos modos de aplicação

Barbosa, Newton Cabral; Arruda, Everton Martins; Brod, Elias; Pereira, Hamilton Seron

doi:10.14393/bj-v31n1a2015-18196-

Cited by 2 publications

(1 citation statement)

References 3 publications

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“…Following the world's machinery development, the Brazilian farmers are adopting the use of seeding machines without fertilizer deposition, mostly to reduce the cost of the seeding process (BARBOSA et al, 2015). However, these machines require the phosphorus fertilization to be made on the soil surface without incorporate the element at soil, concentrating this element at the soil surface (NUNES et al, 2011), reducing the Brazilian Journal of Development, Curitiba, v.7, n.1, p. 4332-4344 jan. 2021 plants root development (MALAVOLTA, 2004) and exposing those plants to climatic risks.…”

Section: Introductionmentioning

confidence: 99%

Soybean Seed Cover With Solid Phosphate Fertilizer / Revestimento De Sementes De Soja Com Fertilizante Fosfatado Sólido

Castaldo

Costa

Albrecht

2021

BJD

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The use of seeders that only deposit seeds in the soil results in the phosphate fertilization to be realized at the surface of the soil, demanding new techniques to the localized phosphate fertilization as the seed covering with solid phosphate fertilizers. The aim of this work was to evaluate the seed cover with supertriple phosphate in granulometries and fertilizer doses. The experiment was a 4x4 factorial (granulometries x doses), which tested the 6, 12, 24 and 48% of fertilizer added in the seed covering, relative to the seeds mass. The fertilizers granulometries were defined by sieves Mesh-Tyler 35, 60, 115 and 270. Seed of soybean variety TMG 7063 were covered using Likoseed polymer (1 ml kg -1 ). It was evaluated the visual quality of seeds cover, the seeds germination on paper roll, the emergence in sandbox and the growth of aerial part and radicle of the seedlings. The finer granulometries combined with the higher doses showed better visual quality of covering however, as the fertilizer doses were higher, the seeds germination, the emergence and the radicle growth were lower. The seed covering is technically viable to supply the fertilizer trough seeds.

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Section: Introductionmentioning

confidence: 99%

Soybean Seed Cover With Solid Phosphate Fertilizer / Revestimento De Sementes De Soja Com Fertilizante Fosfatado Sólido

Castaldo

Costa

Albrecht

2021

BJD

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Spatial distribution of phosphorus in the soil and soybean yield as function of fertilization methods

Barbosa¹,

Pereira²,

Arruda³

et al. 2018

Biosci. J.

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ABSTRACT:The method of phosphate fertilization is a factor that may affect soil phosphorus availability, directly affecting soybean (Glycine max) yield. Thus, the objective this study evaluated combinations of phosphate fertilization methods on lateral and depth distribution of phosphorus (P) in the soil, as well as soybean yield. Experimental design was randomized blocks, 5x4x8 factorial with split plots, evaluated within each fertilization method: 100% broadcast, 75% broadcast and 25% in the sowing furrow, 50% broadcast and 50% in the row, 25% broadcast and 75% in the sowing furrow, 100% in the sowing furrow and control (No P fertilization), with four replications. The P content was evaluated at the depths 0-5, 5-10, 10-15 and 15-20 cm and in eight lateral distributions every 5 cm (starting between two rows, through the sowing furrow and finishing in the middle of the next row). The method of broadcasting 100% of phosphate fertilization did not present differences in the evaluations of lateral distribution for phosphorus content, however, the methods of phosphate fertilization 75 and 100% in the sowing furrow performed better at the depths 0-5 and 5-10 cm, exactly on central lateral distributions. Increased plant height and soybean yield were observed as the amount of phosphorus increased in sowing furrow instead of broadcast application.

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Distribuição vertical do fósforo no solo em função dos modos de aplicação

Cited by 2 publications

References 3 publications

Soybean Seed Cover With Solid Phosphate Fertilizer / Revestimento De Sementes De Soja Com Fertilizante Fosfatado Sólido

Soybean Seed Cover With Solid Phosphate Fertilizer / Revestimento De Sementes De Soja Com Fertilizante Fosfatado Sólido

Spatial distribution of phosphorus in the soil and soybean yield as function of fertilization methods

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