Ciro Antônio Rosolem

Universidade Estadual Paulista (Unesp)

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Juliano Carlos Calonego

Universidade Estadual Paulista (Unesp)

Júlio César Bogiani

Brazilian Agricultural Research Corporation

Fábio Rafael Echer

Universidade do Oeste Paulista

José Ricardo Machado

Universidade Federal de Juiz de Fora

João Nakagawa

Universidade Estadual Paulista (Unesp)

Carlos Alexandre Costa Crusciol

Universidade Estadual Paulista (Unesp)

Marcos Vinícius Mansano Sarto

Kansas State University

E. Malavolta

Universidade de São Paulo

Rodrigo Arroyo Garcia

Brazilian Agricultural Research Corporation

Danilo S. Almeida

Universidade de São Paulo

Cooperative Institutions

Universidade Estadual Paulista (Unesp)

214

Universidade de São Paulo

Brazilian Agricultural Research Corporation

Faculdade de Agudos

Universidade do Oeste Paulista

Instituto Agronômico do Paraná

Secretaria de Agricultura e Abastecimento

National Council for Scientific and Technological Development

Methodist University of Piracicaba

Agronomical Institute of Campinas

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Nutrient use efficiency: science to field practice

Plant and Soil (2024)

Ciro Antônio Rosolem Steen Husted

traits are affected by both biotic and abiotic stresses.Several of these aspects have been discussed before, such as the molecular basis of NUE (Adhikari et al.

Plant Physiology

10.1007/s11104-024-06533-w

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Citations (4)

Soil phosphorus forms after brachiaria

The Proceedings of the International Plant Nutrition Colloquium XVI (2009)

Alexandre Merlin Ciro Antônio Rosolem Júlio Cesar Longo Büll

No-till can increase soil microbial activity, which can affect phosphorus availability. The use of some crops in rotation can also modify P availability, and it has been evidenced that brachiaria may enhance soil P availability. The activity of acid phosphatases and the changes in soil P as affected by Brachiaria were studied in a pot experiment, in two tropical soils. Brachiaria ruziziensis was grown for 84 days in 8 L pots. At harvest, brachiaria response to P rates and soil P forms were evaluated. Dry matter production and P accumulation by Brachiaria were increased with P doses. Fertilizer addition increased microbial P, but decreased the activity of acid phosphatases in the soil. Brachiaria modified some forms of inorganic and organic P in soil, but the changes were not enough to support the nutrition of the subsequent crop.

Brachiaria

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Efeitos de modos de aplicacao, doses e fontes de potassio na producao da soja

BRAZILIAN JOURNAL OF AGRICULTURE - Revista de Agricultura (1979)

Ciro Antônio Rosolem João Nakagawa José Ricardo Machado Takashi Yamada

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Polyol-ester impact on boron foliar absorption and remobilization in cotton and coffee trees

Figshare (2021)

Ciro Antônio Rosolem Danilo S. Almeida Caio Vilela Cruz

ABSTRACT Foliar fertilization can be recommended to treat boron (B) deficiency in coffee and cotton. Considering that B foliar fertilizers with polyol-boron complexes can affect B uptake and mobility differently within the plant, and coffee and cotton have different cuticles and stomata density, a differential response would be expected. We aimed to study the foliar application of boric acid combined with sorbitol on B uptake and translocation in cotton and coffee. Green-house grown plants received B as boric acid and a sorbitol-monoethanolamine complex and were sampled up to 96 h after application. Boron absorption was fast, reaching 60 and 80 % in cotton and coffee 96 h after application, respectively. Uptake rates and total B absorption were similar for the fertilizers. The proportion of B taken up by coffee is greater than by cotton likely because of the greater stomata density in coffee and less likely due to the higher amount of wax in cotton cuticle. Boron remobilization is higher in coffee as compared with cotton. Sorbitol seems to increase B transport in the transpiratory stream of cotton, but impairs remobilization in the phloem since B translocation to roots is decreased in both cotton and coffee.

10.6084/m9.figshare.14278359

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Efeitos da calagem na nutricao mineral do amendoim . Magnesio

Cientifica (Sao Paulo) (1993)

Eduardo Fávero Caires Ciro Antônio Rosolem

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Growth regulator losses from cotton plants due to rainfall

Scientia Agricola (2010)

Rodrigo Arroyo Garcia Mariana Zampar Toledo Ciro Antônio Rosolem

Plant growth regulators (PGRs) applied to cotton plants (Gossypium hirsutum L.) can be washed off by rainfall. It is expected that the closer the rainfall to spraying time, the higher the product loss and the higher the amount of product to be reapplied to reach the desired growth rate. The objective of this study was to evaluate the effects of time between rainfall and application of either mepiquat chloride or chlormequat chloride to cotton on plant growth, as well as, estimate the need for PGR reapplication. Cotton was grown in 12-L pots with soil in a greenhouse. PGRs were applied forty days after seedling emergence, when 50% of plants had one pinhead square. Rainfall was simulated 1, 2, 4, 6, or 24 h after spraying. Plant height was measured just before PGR application and then at 3-d intervals for 30 d. At harvest, the number of reproductive branches and structures were counted before dry matter phytomass determination. Both growth regulators reduced cotton dry matter yields regardless of rainfall interval. PGRs controlled excessive plant growth; however, their efficiency was reduced as the time elapsed until rainfall was shorter. Product losses were detected after all rainfall intervals, which, in field conditions would require PGR reapplication. Mepiquat chloride rates to be reapplied after rain were on average 17% higher than chlormequat chloride rates.

Chlormequat

Growth regulator

10.1590/s0103-90162010000200005

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EFICIÊNCIA DE ABSORÇÃO E UTILIZAÇÃO DE POTÁSSIO POR PLANTAS DE SOJA EM SOLUÇÃO NUTRITIVA

Bragantia (1998)

Luís Vitor Silva do Sacramento Ciro Antônio Rosolem

Em casa de vegetação, desenvolveu-se o experimento em blocos casualizados com esquema fatorial 4 x 2 x 3 e três repetições a fim de estudar a influência da idade sobre as relações de eficiência (EAB, eficiência de absorção; EC, eficiência de conversão, e EUK, eficiência de utilização de potássio) e sobre o índice de utilização (IU). Os cultivares de soja IAC 17, IAC 18, IAC 11 e FT 2, crescidos em solução nutritiva com dois níveis de potássio (0,50 e 1,82 mmol.L-1), foram coletadas e separadas em folhas inferiores, medianas e superiores, caule e raiz aos 20, 40 e 60 dias após a transferência para a solução nutritiva. Depois da secagem, as partes foram preparadas para a determinação de K. Verificou-se que plantas deficientes, independentemente do cultivar, retranslocaram K tentando manter seu conteúdo nas folhas medianas, a expensas de demais órgãos. Destacam-se, nesse comportamento, 'IAC 18' e 'IAC 11'. Plantas adequadamente nutridas em K apresentaram maior EAB, ocorrendo o contrário para plantas deficientes. 'IAC 17' e 'IAC 18' apresentaram maior EAB em ambas as condições nutricionais em K e 'FT 2', a maior EUK em condições de deficiência, aos 40 dias (antes do início da floração) e, a menor, aos 60 dias. 'IAC 11' teve a maior EUK e 'IAC 18', a menor, aos 60 dias. O IU permitiu atribuir critérios de plasticidade aos cultivares ao se adaptarem à deficiência de K. A maior plasticidade foi observada para 'FT 2' aos 40 dias e, para 'IAC 18', aos 60. Plantas K-deficientes foram mais eficazes na EC, produzindo mais matéria seca por unidade do mineral absorvido.

10.1590/s0006-87051998000200017

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Citations (13)

Potassium application to the cover crop prior to cotton planting as a fertilization strategy in sandy soils

Scientific Reports (2020)

Fábio Rafael Echer Vinícius José Souza Peres Ciro Antônio Rosolem

Abstract Urochloa grasses are used as cover crops in tropical cropping systems under no-till to improve nutrient cycling. We hypothesized that potassium (K) applied to ruzigrass ( Urochloa ruziziensis ) grown before cotton in a sandy soil could be timely cycled and ensure nutrition, yield and quality of cotton cultivars with no need to split K application. Field experiments were performed with different K managements, applied to ruzigrass, to cotton grown after grass and without grass, or split as it is done conventionally. No yield differences were observed on K fertilized treatments. At 0 K, cotton yields were low, but they increased by 16% when ruzigrass was grown before, and short fiber content was lower when there was more K available. Ruzigrass grown before cotton increased micronaire as much as the application of 116 kg ha −1 of K without the grass. Fiber maturity was higher when K was applied to the grass or split in the grass and sidedressed in cotton. Growing ruzigrass before cotton allows for early K fertilization, i.e., application of all the fertilizer to de grass, since the nutrient is recycled, and cotton K nutrition is not harmed. Eventually K rates could be reduced as a result of higher efficiency of the systems.

Cropping system

Potash

10.1038/s41598-020-77354-x

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Citations (16)

Adubacao foliar do feijoeiro. Iv-efeitos de doses e epocas de aplicacao de npks

Revista de agricultura (Piracicaba) (1983)

Ciro Antônio Rosolem José Ricardo Machado R.A.D Kantack

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Deep soil carbon stock, origin, and root interaction in a tropical integrated crop–livestock system