Eficiência De Fertilizante Fosfatado Protegido Na Cultura Do Milho

Almeida, Tiago de; Pocojeski, Elisandra; Nesi, Cristiano Nunes; Silva, Leandro Souza da; Oliveira, Jaqueline Pereira Machado de

doi:10.5380/rsa.v17i1.46173

Cited by 7 publications

(5 citation statements)

References 10 publications

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“…biological, physical and chemical properties (Trenkel 2010). These beneficial effects are related to a lower initial nutrient release and a gradual increase in the nutrient availability over time, synchronizing release with plant demand, thus increasing the efficiency, due to the presence of organic acids that block the P adsorption sites and/or complex the Fe and Al present in the soil (Almeida et al 2016).…”

Section: Efeitos De Associação Micorrízica E Adubação Fosfatada No Crmentioning

confidence: 99%

Effects of mycorrhizal association and phosphate fertilization on the initial growth of coffee plants

Araújo

Cruz

Porto

et al. 2020

Pesqui. Agropecu. Trop.

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In the establishment of coffee crops, phosphate fertilization is one of the most important soil fertility managements. Aiming to minimize losses, among the options in use are fertilizers with a slow release of nutrients, combined with the inoculation of arbuscular mycorrhizal fungi (AMF). This study aimed to evaluate the initial growth of coffee plants inoculated with AMF and submitted to different types of phosphate fertilizers. The experiment was conducted in a greenhouse, using a complete randomized block design, in a 2 x 4 factorial scheme, with four replications. The first factor referred to the presence or absence of AMF (Rhizophagus clarus) and the second one to phosphate [monoammonium phosphate (MAP)], pelletized organomineral and grainy organomineral fertilizers, as well as a control (without fertilization). The plant height, leaf chlorophyll content, number of plagiotropic branches, leaf area, shoot and root dry matter mass, percentage of root colonization and leaf phosphorus were evaluated. The inoculation with AMF, associated with the pelletized organomineral fertilizer, provided a higher growth for the shoot and root system and higher phosphorus contents, in relation to the other treatments, and it can be an alternative to the implantation or renewal of coffee crops.

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Section: Efeitos De Associação Micorrízica E Adubação Fosfatada No Crmentioning

confidence: 99%

Effects of mycorrhizal association and phosphate fertilization on the initial growth of coffee plants

Araújo

Cruz

Porto

et al. 2020

Pesqui. Agropecu. Trop.

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“…Algumas pesquisas tem avaliado a eficiência do uso de fertilizantes fosfatados de liberação lenta [11][12][13][14][15][16][17][18] e da possibilidade de maior disponibilidade do adubo, justificada pela liberação gradual ao solo. Na agricultura, os polímeros tem sido utilizados no revestimento de fertilizantes permitindo uma liberação gradativa dos nutrientes de seu interior [12].…”

Section: Introductionunclassified

Monoamônio fosfato revestido com polímero na cultura do girassol

et al. 2022

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O uso de polímeros para o revestimento de fertilizantes fosfatados possibilita uma liberação mais lenta dos nutrientes e, com isso, reduz sua suscetibilidade aos processos de imobilização no solo. Assim, objetivou-se avaliar quatro variedades de girassol submetidas a adubação com fontes de fósforo com e sem polímeros no cerrado brasileiro. A pesquisa foi realizada em condições de campo em uma área de 887 m², localizada no município de Cassilândia (MS), com predominância de verão chuvoso e inverno seco. O delineamento experimental utilizado foi blocos casualizados em esquema fatorial 4x2, envolvendo 4 variedades de girassol (Embrapa 122, IAC Iarama, IAC Uruguai e Catissol 01) e 2 fontes de fósforo (superfosfato triplo sem polímeros e monoamônio fosfato com polímeros), com 4 repetições. A unidade experimental (parcela) foi constituída por 4 fileiras de plantas de 5 m de comprimento, espaçadas de 0,70 m entre fileiras, com uma população de 50 mil plantas por hectare. Foram realizadas as avaliações de número de folhas fotossintéticamente ativas, altura de plantas e diâmetro de caule, o diâmetro e número de capítulos, a massa de 1000 aquênios, e a produtividade de grãos. O uso de polímeros na formulação do fertilizante monoamônio fosfato apresenta potencial para uso na cultura do girassol. A resposta da planta de girassol à adubação com monoamônio fosfato revestido depende da cultivar utilizada.

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“…The nutrient phosphorus (P) becomes less available in the rhizosphere due to its occurrence in organic forms, slow diffusion rate in the solution, and its contact with some soil constituents, such as aluminum (Al), iron (Fe), and calcium (Ca). Organic matter in highly weathered soils reduces P adsorption, even in small proportions, and can increase the agronomic efficiency of phosphate fertilizers, thus enabling greater P uptake by crops (Almeida et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Planting Fertilization and Nitrogen Doses in Topdressing in Second-Crop Corn

Silva¹,

Silva²,

Resende³

et al. 2022

Rev. Agric. Neotrop.

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The present study aimed to evaluate the influence of fertilization formulated at planting and doses of nitrogen in topdressing on the yield components of second-crop corn. The experiment was conducted between March and June 2018 on the farm of the State University of Goiás, University Unit of Ipameri-GO. The randomized block design, arranged in a 3 x 5 factorial scheme with four replications, was used. Three fertilizer formulations at planting (06-22-12; 08-20-15 and 06-22-12 + 2% organic carbon) and five doses of N (0, 50, 100, 150 and 200 kg ha-1) in topdressing were evaluated. Leaf nitrogen content, fresh and dry mass of leaves, plant height, stem diameter, first ear insertion height, length and diameter of ears, 1000-grain weight, the mass of plants per hectare, extraction of nitrogen, and grain yield were assessed. Given the results, NPK formulated fertilizers can be used indifferently to grow second-crop corn. Nitrogen doses in topdressing have satisfactory results up to the estimated rate of 135 kg ha-1 for the cultivation of second-crop corn.

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Eficiência De Fertilizante Fosfatado Protegido Na Cultura Do Milho

Cited by 7 publications

References 10 publications

Effects of mycorrhizal association and phosphate fertilization on the initial growth of coffee plants

Effects of mycorrhizal association and phosphate fertilization on the initial growth of coffee plants

Monoamônio fosfato revestido com polímero na cultura do girassol

Planting Fertilization and Nitrogen Doses in Topdressing in Second-Crop Corn

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