José Dôres

Instituto Politécnico de Beja

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Manuel Patanita

Universidade Nova de Lisboa

Alexandra Tomaz

Universidade Nova de Lisboa

José Ferro Palma

Instituto Politécnico de Beja

Ana Sofia Almeida

Universidade Nova de Lisboa

Luís Boteta

Centro Operativo e de Tecnologia de Regadio

Fernando H. Reboredo

Universidade Nova de Lisboa

Isabel P. Pais

University of Lisbon

P. P. A. Oliveira

Fundação Oswaldo Cruz

Maria Manuela Silva

Universidade Nova de Lisboa

Diana Daccak

Universidade Nova de Lisboa

Cooperative Institutions

Universidade Nova de Lisboa

University of Lisbon

Instituto Nacional de Investigação Agrária e Veterinária

Terra

Departamento de Ciência e Tecnologia

Instituto Politécnico de Beja

University of Évora

University of Coimbra

Instituto de Investigação Científica Tropical

Escola Secundária Quinta do Marquês

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Estudo do efeito das práticas agrícolas nas características de solos do aproveitamento hidroagrícola Brinches-Enxoé (subsistema Ardila, Alqueva)

Adriana Catarino Clarisse Mourinha Inês Martins Alexandra Tomaz José Dôres

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Characterization of a Triticum aestivum L. Experimental Field to Implement an Agronomic Biofortification Workflow

Inês Carmo Luís Ana Coelho Marques Ana Rita F. Coelho Cláudia Campos Pessoa Diana Daccak

Soils provide plants both with a physical home and all the essential nutrients and support they crave to thrive. Such circumstances pave the way for a close analysis of the level of viability of different types of soils, and hence the need to assess the suitability of the experimental field in which to implement an agronomic biofortification itinerary. Thus, soil samples were collected from different sites of a wheat field. A rectangular grid was applied. Afterwards, pH and electrical conductivity were determined with a potentiometer; the mineral quantification was measured using an XRF analyzer and color analysis were performed with a Minolta CR 400 colorimeter. Moisture and organic matter content analyses were also carried out. No significant differences were found when considering the moisture content, pH, electrical conductivity, and the mineral values of Fe and Mn. As opposed to this, slight differences were observed in organic matter content, color parameters, and in Ca, K, S, Cu, and Zn. Concerning the macroelements, the most prevalent mineral was Ca, followed by K and S. As for the microelements, Zn was the least dominant mineral, as opposed to Cu, Mn, and Fe. Data showed that this experimental field has proven to be eligible to implement an agronomic biofortification workflow due to the slightly acid pH and the lower amount of organic matter content.

Biofortification

10.3390/iocag2022-12304

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Otimização da aplicação de fertilização azotada em trigos melhoradores

Manuel Patanita José Dôres Maria Natividade Costa Elizabete Rosa P. Martins

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Monitoring a Zinc Biofortification Workflow in an Experimental Field of Triticum aestivum L. Applying Smart Farming Technology

Inês Carmo Luís Ana Rita F. Coelho Cláudia Campos Pessoa Diana Daccak Ana Coelho Marques

The strong increase of the human population worldwide is demanding a food production meeting quality standards. In this context, the agronomic biofortification with Zn is widely used in staple food crops as a strategy to surpass micronutrient deficiencies. Conversely, as bread wheat is one of the most produced and consumed cereal, this staple food biofortification can be an opportunity to create an added value product. In this context, a workflow for Zn biofortification of Triticum aestivum L. (cvs Paiva and Roxo) crops was implemented in an experimental field located in Beja, Portugal, and smart farming techniques were introduced. Images were collected with cameras coupled to an Unmanned Aerial Vehicle before Zn foliar applications. Grain yield, test weight, and thousand kernel weight were analyzed (post-harvest) after two foliar applications of ZnSO4. Three levels of the factor were used (control–0, 8.1 and 18.2 kg.ha−1) at booting and heading stages. In general, when applying higher concentrations of foliar Zn, grain yield, test weight, and thousand kernel weight decreased slightly and Paiva presented higher values compared to Roxo. Nevertheless, the Normalized Difference Vegetation Index (NDVI) did not reveal a direct correlation between its higher values or the increase of grain yield. However, it was concluded that using drones coupled with specific cameras is of utmost importance to decide whether an experimental field is qualified to implement a biofortification workflow.

Biofortification

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Staple food

10.3390/iecag2021-09724

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Influência da Gestão da Rega e da Fertilização Azotada na Produção de Trigo mole (variedade ‘antequera’)

P. P. A. Oliveira Alexandra Tomaz Manuel Patanita Luís Boteta José Dôres

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Rega e fertilização azotada do trigo em ambiente Mediterrânico: efeito no rendimento e qualidade do grão e na eficiência de uso da água de rega