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AgriEngineering, Volume 7, Issue 9

2025 September - 43 articles

Cover Story: In hilly vineyards, uneven vigor undermines uniform yield and quality. We demonstrate a simple NDVI-guided, on-the-go variable-rate fertilization (VRA) that adjusts N in real time—no prescription maps—across an 8.5 ha commercial block. Over two seasons, spatial variance in vigor fell (sill −55%, nugget −73%), while yield components became more uniform. Nitrogen input halved, cutting ~302 kg CO2-eq ha−1. Grape composition remained stable, indicating quality was not compromised. This sensor-based workflow offers a practical path to scalable, sustainable precision viticulture for small, heterogeneous vineyards. View this paper
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Articles (43)

  • Article
  • Open Access
1,090 Views
18 Pages

Automated Physical Feature Extraction of Namdokmai Sithong Mangoes Using YOLOv8 and Image Processing Techniques

  • Sujitra Arwatchananukul,
  • Suphapol Wongsawat,
  • Saowapa Chaiwong,
  • Min Chen and
  • Rattapon Saengrayap

Accurate and consistent measurements of geometric features such as fruit length and width are essential for the quality assessment of Namdokmai Sithong mangoes. Traditional manual methods are labor-intensive and prone to inconsistency. This study pre...

  • Article
  • Open Access
1,039 Views
20 Pages

Eco-Efficiency of Rural Biodigesters: Mono- and Co-Digestion of Agricultural Waste

  • Vanessa Souza,
  • Juliana Dias de Oliveira,
  • Régio Marcio Toesca Gimenes,
  • Ana Carolina Amorim Orrico and
  • Moacir Cardoso Santos Júnior

The increasing generation of agricultural waste poses both environmental and economic challenges, particularly in rural areas with limited infrastructure. Anaerobic digestion has emerged as a sustainable alternative, enabling the valorization of wast...

  • Article
  • Open Access
1 Citations
1,713 Views
13 Pages

Development of a Testing Method for the Accuracy and Precision of GNSS and LiDAR Technology

  • Kerin F. Romero,
  • Yorbi Castillo,
  • Marcelo Quesada,
  • Yorjani Zumbado and
  • Juan Carlos Jiménez

This study evaluates the positional accuracy of Global Navigation Satellite Systems (GNSS) and Unmanned Aerial vehicle (UAV)-based LiDAR systems in terrain modeling, using a total station as a reference. The research was conducted over 17 Ground Cont...

  • Systematic Review
  • Open Access
4 Citations
2,886 Views
30 Pages

The mechanisation of sesame (Sesamum indicum L.) planting remains a significant challenge due to the crop’s small, fragile seeds and non-uniform shape, which hinder the effectiveness of standard seeding systems. Crop emergence and production ar...

  • Article
  • Open Access
1,350 Views
18 Pages

The definition of management zones is an essential strategy for optimizing agricultural productivity, enabling the efficient use of inputs and the minimization of environmental impacts. This study aims to identify and classify management zones in a c...

  • Article
  • Open Access
1,325 Views
13 Pages

Proximate Composition of Rice Grains Grown in Brazil Assessed Using Near-Infrared Spectroscopy: A Strategy for Selecting Superior Genotypes

  • Aguiar Afonso Mariano,
  • Gabriel Brandão das Chagas,
  • Larissa Alves Rodrigues,
  • Andreza de Brito Leal,
  • Michel Cavalheiro da Silveira,
  • Maurício de Oliveira,
  • Antonio Costa de Oliveira,
  • Luciano Carlos da Maia and
  • Camila Pegoraro

A rice grain’s proximate composition determines its nutritional potential. Macronutrient quantification is essential to identify superior genotypes and direct breeding efforts to reach more people who are vulnerable. Conventional methods to det...

  • Article
  • Open Access
1,209 Views
17 Pages

Prediction of the Live Weight of Pigs in the Growing and Finishing Phases Through 3D Images in a Semiarid Region

  • Nicoly Farias Gomes,
  • Maria Vitória Neves de Melo,
  • Maria Eduarda Gonçalves de Oliveira,
  • Gledson Luiz Pontes de Almeida,
  • Kenny Ruben Montalvo Morales,
  • Taize Cavalcante Santana,
  • Héliton Pandorfi,
  • João Paulo Silva do Monte Lima,
  • Alexson Pantaleão Machado de Carvalho and
  • Marcos Vinícius da Silva
  • + 2 authors

Estimated population growth and increased demand for food production bring with them the evident need for more efficient and sustainable production systems. Because of this, computer vision plays a fundamental role in the development and application...

  • Article
  • Open Access
1,255 Views
16 Pages

Economic Feasibility of Solid–Liquid Separation and Hydraulic Retention Time in Composting or Anaerobic Digestion Systems for Recycling Dairy Cattle Manure

  • Isabelly Alencar Macena,
  • Ana Carolina Amorim Orrico,
  • Erika do Carmo Ota,
  • Régio Marcio Toesca Gimenes,
  • Vanessa Souza,
  • Fernando Miranda de Vargas Junior,
  • Brenda Kelly Viana Leite and
  • Marco Antonio Previdelli Orrico Junior

Given the demand for sustainable and cost-effective manure management in livestock systems, this study evaluated the economic feasibility of cattle manure treatment via composting and anaerobic digestion (AD) under different configurations. Five scen...

  • Article
  • Open Access
1 Citations
3,359 Views
22 Pages

Performance Assessment of a Vibratory-Enhanced Plowing System for Improved Energy Efficiency and Tillage Quality on Compacted Soils

  • Laurentiu Constantin Vlădutoiu,
  • Eugen Marin,
  • Florin Nenciu,
  • Daniel Lateș,
  • Ioan Catalin Persu,
  • Mario Cristea and
  • Dragoș Manea

Compacted and degraded soils pose increasing challenges to agricultural practices, necessitating innovative approaches to soil tillage. This paper evaluates the performance of a vibratory-enhanced moldboard plowing system, designed to improve energy...

  • Article
  • Open Access
1,068 Views
19 Pages

Leveraging Transfer Learning for Determining Germination Percentages in Gray Mold Disease (Botrytis cinerea)

  • Luis M. Gómez-Meneses,
  • Andrea Pérez,
  • Angélica Sajona,
  • Luis F. Patiño,
  • Jorge Herrera-Ramírez,
  • Juan Carrasquilla and
  • Jairo C. Quijano

The rapid and accurate identification of pathogenic spores is essential for the early diagnosis of diseases in modern agriculture. Gray mold disease, caused by Botrytis cinerea, is a significant threat to several crops and is traditionally controlled...

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AgriEngineering - ISSN 2624-7402