|
|
|
|
|
Xin Zhao, Zeyi Zhao, Fengnian Zhao, Jiangfan Liu, Zhaoyang Li, Xingpeng Wang and Yang Gao
Accurate nitrogen fertilizer management determines the yield and quality of fruit trees, but there is a lack of multispectral UAV-based nitrogen fertilizer monitoring technology for orchards. Therefore, in this study, a field experiment was conducted by ...
ver más
|
|
|
|
|
|
|
|
|
|
|
John T. Van Stan II and Juan Pinos
Plant canopies divert a portion of precipitation to the base of their stems through ?stemflow?, a phenomenon that influences the canopy water balance, soil microbial ecology, and intrasystem nutrient cycling. However, a comprehensive integration of stemf...
ver más
|
|
|
|
|
|
|
|
|
|
|
Adel M. Al-Saif, Hosny F. Abdel-Aziz, Sobhy M. Khalifa, Ibrahim A. Elnaggar, Abd El-wahed N. Abd El-wahed, Mohammed H. Farouk and Ashraf E. Hamdy
Pruning is an essential practice that helps control branch growth, optimize fruit size, and enhance fruit tree productivity. This study focused on ?Valencia? orange trees, which had experienced a decline in productivity after being cultivated on reclaime...
ver más
|
|
|
|
|
|
|
|
|
|
|
Sunni Kanta Prasad Kushwaha, Arunima Singh, Kamal Jain, Jozef Vybostok and Martin Mokros
In forestry research, for forest inventories or other applications which require accurate 3D information on the forest structure, a Terrestrial Laser Scanner (TLS) is an efficient tool for vegetation structure estimation. Light Detection and Ranging (LiD...
ver más
|
|
|
|
|
|
|
|
|
|
|
Aleksandra Pachuta, Boguslawa Berner, Jerzy Chojnacki, Gerhard Moitzi, Jirí Dvorák, Anna Keutgen, Jan Najser, Jan Kielar, Tomá? Najser and Marcel Mikeska
The study aimed to assess the quality of spraying of ornamental conifer using a multi-rotor drone. We examined how the speed of drone movement and the propellers? spin speed can affect the deposition quality of the sprayed liquid in the crown of blue spr...
ver más
|
|
|
|
|
|
|
|
|
|
|
Enrico Maria Lodolini, Alberto de Iudicibus, Pompea Gabriella Lucchese, Giuseppina Las Casas, Biagio Torrisi, Elisabetta Nicolosi, Alessio Giuffrida and Filippo Ferlito
In a young super-high-density (SHD) olive orchard located in Aidone (EN), in the Sicily Region, Italy, the architectural features of five olive cultivars were studied, specifically Arbequina, Arbosana, Oliana®, Giulia®, and FS-17®. Surveys were conducted...
ver más
|
|
|
|
|
|
|
|
|
|
|
Yizhuo Zhang, Hantao Liu, Xingyu Liu and Huiling Yu
Due to the complex structure of high-canopy-density forests, the traditional individual tree segmentation (ITS) algorithms based on ALS point cloud, which set segmentation threshold manually, is difficult to adequately cover a variety of complex situatio...
ver más
|
|
|
|
|
|
|
|
|
|
|
Peng Qi, Lanting Zhang, Zhichong Wang, Hu Han, Joachim Müller, Tian Li, Changling Wang, Zhan Huang, Miao He, Yajia Liu and Xiongkui He
Background: Unmanned Aerial Vehicles (UAVs) are increasingly being used commercially for crop protection in East Asia as a new type of equipment for pesticide applications, which is receiving more and more attention worldwide. A new model of pear cultiva...
ver más
|
|
|
|
|
|
|
|
|
|
|
Zhongao Lu, Lijun Qi, Hao Zhang, Junjie Wan and Jiarui Zhou
Obtaining canopy area, crown width, position, and other information from UAV aerial images and adjusting spray parameters in real-time according to this information is an important way to achieve precise pesticide application in orchards. However, the na...
ver más
|
|
|
|
|
|
|
|
|
|
|
Vahid Nasiri, Seyed Mohammad Moein Sadeghi, Fardin Moradi, Samaneh Afshari, Azade Deljouei, Verena C. Griess, Carmen Maftei and Stelian Alexandru Borz
Forest canopy cover (FCC) is one of the most important forest inventory parameters and plays a critical role in evaluating forest functions. This study examines the potential of integrating Sentinel-1 (S-1) and Sentinel-2 (S-2) data to map FCC in the het...
ver más
|
|
|
|
|
|