Effects of laser scanner quality and tractor speed to characterise apple tree canopies

Siefen, Nils; McCormick, Roy; Vogel, A.M.; Biegert, Konni

doi:10.1016/j.atech.2023.100173

Cited by 5 publications

(3 citation statements)

References 20 publications

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“…If the consortium and the General Directorate of the State Forests in Poland decide to continue this project, it will be necessary to use some kind of industrial, weatherproof mobile solution of a ToF sensor with an integrated vision sensor to achieve the best efficiency [26][27][28]. It would also be desirable to develop a system that feeds seedlings with an exposed root system.…”

Section: Discussionmentioning

confidence: 99%

A Seedling Collection Unit of a Mobile Automatic Device for Forest Tree Planting—An Extended Operating Concept

Sobocki,

Adamczyk,

Tylek

et al. 2023

Forests

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Agrotechnological procedures related to forest management, including planting, are burdensome and the energy expenditure of the people working is very high. Nowadays, planting is usually carried out manually, and sometimes with the use of planters coupled to universal tractors. Occasionally, planters mounted on high-power carriers are used, and usually the seedlings are removed from their cassettes and placed manually into the planter’s storage unit. In connection with the above, the prototype of a mobile automatic device for performing forest regeneration tasks and afforestation of post-agricultural and reclaimed areas (RoboFoR) was designed. The main task of this vehicle is planting forest tree seedlings with a covered root system, which are collected directly from their nursery cassettes. This study presents the structure, principle of operation and results of operational tests of the seedling storage and feeding unit. It was found that the unit achieved the expected work efficiency. However, imperfections in the system related to the non-centralized distribution of seedlings in containers and the high variability of biometric characteristics of the seedlings were also identified. A new solution for this unit was proposed, which will increase the reliability of collecting the seedlings. A new solution requires greater computational power of the control unit as well as equipping the sensor system with a technologically advanced root neck detection system. The new concept also assumes the possibility of independent movement of each gripper.

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Section: Discussionmentioning

confidence: 99%

A Seedling Collection Unit of a Mobile Automatic Device for Forest Tree Planting—An Extended Operating Concept

Sobocki,

Adamczyk,

Tylek

et al. 2023

Forests

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“…Adjusting the parameters of the aboveground part of the crown, Siefen et al (2023), were able to provide 35-40% higher illumination of its central part, improving air circulation, thus stabilising fruiting and improving the commercial quality of the crop. Pruning apple trees is a very labour-intensive agricultural measure in the apple production process (Fransen, 2016; Marini, 2020).…”

Section: Introductionmentioning

confidence: 99%

Untitled

2023

Scientific Horizons

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Свідоцтво про державну реєстрацію друкованого засобу масової інформації серії КВ № 24997-14937 ПР Науковий журнал включено до категорії А Переліку наукових фахових видань України, у яких можуть публікуватися результати дисертаційних робіт на здобуття наукових ступенів доктора та кандидата ветеринарних, економічних, сільськогосподарських і технічних наук зі спеціальностей: 051 -Економіка; 071 -Облік і оподаткування; 072 -Фінанси, банківська справа та страхування; 073 -Менеджмент; 075 -Маркетинг; 076 -Підприємництво, торгівля та біржова діяльність; 101 -Екологія; 133 -Галузеве машинобудування; 201 -Агрономія; 202 -Захист і карантин рослин; 203 -Садівництво та виноградарство; 204 -Технологія виробництва і переробки продукції тваринництва; 205 -Лісове господарство; 206 -Садово-паркове господарство; 208 -Агроінженерія; 211 -Ветеринарна медицина (наказ МОН України № 1166 від 23 грудня 2022 р.) Журнал представлено у міжнародних наукометричних базах даних, репозитаріях та пошукових системах: Інституційний репозитарій Поліського національного університету, AGRICOLA, CAB Abstracts and Global Health (CABI), Open Academic Journals Index (OAJI), Scopus, Index Copernicus, Реєстр наукових видань України, Національна бібліотека України імені В. І. Вернадського, Crossref, Directory of Open Access Journals (DOAJ) Адреса редакції: Поліський національний університет б-р Старий,

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Section: Introductionmentioning

confidence: 99%

Parameters of apple tree crowns depending on the crown shape and pruning time

Chaploutskyi¹,

Yakovenko²,

Butsyk³

et al. 2023

Scientific Horizons

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The apple tree is a leading fruit crop in Ukraine in terms of production volumes and planting areas and is a valuable food product with a high content of vitamins. In new modern plantings, fruit producers prefer intensive cultivation technologies that ensure the maximum amount of high-quality fruit yield per unit area. The main criterion for solving this problem is the design of plantings: a narrow-row scheme for planting trees and a low-volume crown shape. The purpose of the study was to establish the influence of the pruning period of different types of crown formations on the growth and productivity of apple trees of two varieties: Fuji and Honey Crisp. The study was conducted in the conditions of the central Forest-Steppe of Ukraine (Uman National University of Horticulture). The scheme of planting was 4x1 m, M.9 rootstock, chernozem sod-podzolic soil, drip irrigation. Field, statistical, and computational-analytical methods were used in the course of the study. It was identified that the growth pattern of the examined varieties differed substantially, and crown volume, projection area, and development of the feeding area prevailed in Honey Crisp trees. However, in terms of productivity, the plantings of the Fuji variety substantially exceeded the values of the Honey Crisp variety. Forming a ballerina crown with the removal of overgrown wood in a 25 cm zone on the central trunk above the lower tier of semi-cellular branches provided an increase in the growth activity of the examined trees by 3-5%. A substantial decrease in the values of crown parameters was provided by the formation of the French axis crown – there was a decrease in the crown diameter by 44%, the crown volume – by 67%, and the crown projection area and the development of the feeding area – by 69%. Performing additional summer pruning of trees also helped to reduce growth activity by 6-11%. However, the specific productivity of plantings doubled in plantings with the formation of the French axis and by 45-50% with the introduction of double pruning of trees. It is recommended that agricultural producers investigate the terms of pruning low-volume crown forms, considering varietal characteristics, to create compacted apple stands and increase the intensification of production

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Effects of laser scanner quality and tractor speed to characterise apple tree canopies

Cited by 5 publications

References 20 publications

A Seedling Collection Unit of a Mobile Automatic Device for Forest Tree Planting—An Extended Operating Concept

A Seedling Collection Unit of a Mobile Automatic Device for Forest Tree Planting—An Extended Operating Concept

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Parameters of apple tree crowns depending on the crown shape and pruning time

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