Results 41 to 50 of about 402,690 (217)
Opportunities and constraints of tomato production in Eritrea [PDF]
, 2008 Tomato is an important vegetable in Eritrea, grown across the entire country. Yields in Eritrea are comparatively low, due to agronomic, institutional and market constraints.
Araia, W. +3 more
core +6 more sources
Automated Mobile System for Accurate Outdoor Tree Crop Enumeration Using an Uncalibrated Camera. [PDF]
, 2015 This paper demonstrates an automated computer vision system for outdoor tree crop enumeration in a seedling nursery. The complete system incorporates both hardware components (including an embedded microcontroller, an odometry encoder, and an ...
Barber, Andrew +6 more
core +2 more sources
Winter Wheat Canopy Height Extraction from UAV-Based Point Cloud Data with a Moving Cuboid Filter
Remote Sensing, 2019 Plant height can be used as an indicator to estimate crop phenology and biomass. The Unmanned Aerial Vehicle (UAV)-based point cloud data derived from photogrammetry methods contains the structural information of crops which could be used to retrieve ...
Yang Song, Jinfei Wang
doaj +1 more source
Testing and improving the effectiveness of trap crops for management of the diamondback moth Plutella xylostella (L.): a laboratory-based study [PDF]
, 2009 BACKGROUND: The aim of this study was to assess white mustard (Sinapis alba L.) as a trap crop for diamondback moth [Plutella xylostella (L.)] on cauliflower [Brassica oleracea (L.) var. Lateman].
Altieri +30 more
core +1 more source
Sar algorithms for crop height estimation: The paddy-rice case study
2016 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2016 This paper presents a study of the sensibility of the incoherent (electromagnetic backscattering model) and coherent (DInSAR and PolInSAR inversion) crop height estimation methods of SAR imaging. The methods were compared for paddy-rice crop height monitoring with a TanDEM-X dataset.
Erten, Esra +3 more
openaire +2 more sources
Remote Sensing, 2022 Although it is common to consider crop height in agricultural management, variation in plant height within the field is seldom addressed because it is challenging to assess from discrete field measurements.
Nitzan Malachy +2 more
doaj +1 more source
Remote Sensing, 2017 Orthomosics and digital surface models (DSM) derived from aerial imagery, acquired by consumer-grade cameras, have the potential for crop type mapping. In this study, a novel method was proposed for extracting the crop height from DSM and for evaluating ...
Mingquan Wu +7 more
doaj +1 more source
ON THE DERIVATION OF CROP HEIGHTS FROM MULTITEMPORAL UAV BASED IMAGERY [PDF]
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019 In this paper, we investigate the usage of unmanned aerial vehicles (UAV) to assess the crop geometry with special focus on the crop height extraction. Crop height is classified as a reliable trait in crop phenotyping and recognized as a good indicator ...
D. Becirevic +6 more
doaj +1 more source
Tree growth and management in Ugandan agroforestry systems: effects of root pruning on tree growth and crop yield [PDF]
, 2008 Tree root pruning is a potential tool for managing below-ground competition when trees and crops are grown together in agroforestry systems. This study investigates its effects on growth and root distribution of Alnus acuminata (HB & K), Casuarina ...
Deans, J. Douglas +5 more
core +1 more source
Identifying crop phenology using maize height constructed from multi-sources images
International Journal of Applied Earth Observation and Geoinformation, 2022 In agriculture, crop height is an important indicator that is commonly applied for monitoring physiological-related traits such as above-ground biomass and grain yields. Timely and precisely acquiring information on crop height at a regional scale still remains challenging, and its potential effectiveness for identifying crop phenology is under studied.
Guo, Yahui +8 more
openaire +3 more sources