Results 71 to 80 of about 369 (258)

High resolution evapotranspiration from UAV multispectral thermal imagery: Validation and comparison with EC, Landsat, and fused S2-MODIS HSEB ET

International Journal of Applied Earth Observations and Geoinformation
Accurate evapotranspiration (ET) estimation is crucial for optimizing irrigation and managing water resources at the field scale. This study investigates the potential of unmanned aerial vehicles (UAVs) equipped with the MicaSense Altum sensor for high ...
Hadi H. Jaafar, Lara H. Sujud
doaj   +1 more source

Climate change and perennial crop production: Evidence of yield impact and adaptation in California

American Journal of Agricultural Economics, EarlyView.
Abstract Perennial crops are economically important. They contribute to food security, providing essential nutrients that are often lacking in annual crops, and provide additional environmental benefits compared with annual crops. Despite their importance, empirical research on the impacts of climate change and adaptation on perennial crops remains ...
Yuanyuan Wen, Wei Zhang, Julian M. Alston   +2 more
wiley   +1 more source

The role of venture‐financed startups in innovation for US agriculture

American Journal of Agricultural Economics, EarlyView.
Abstract To evaluate the role played by startup companies in the innovation ecosystem of US agriculture, we compile a unique dataset of 6024 new entrants founded 1987–2019 that details their financing lifecycles, annual economic performance, and patenting activities.
Gregory D. Graff, Charles A. W. de Grazia, Nicholas E. Rada   +2 more
wiley   +1 more source

Definição da taxa de infiltração para dimensionamento de sistemas de irrigação por aspersão Definition of the infiltration rate for the design of sprinkle irrigation systems

Revista Brasileira de Engenharia Agrícola e Ambiental, 2009
Objetivou-se, neste trabalho, determinar, dentre as técnicas nele utilizadas, a mais adequada para a definição da taxa de infiltração visando ao dimensionamento de sistemas de irrigação por aspersão.
Carlos B. M. Calheiros, Filipe J. C. Tenório, Jorge L. X. L. Cunha, Edson T. da Silva, Djair F. da Silva, José A. C. da Silva   +5 more
doaj   +1 more source

Environmentally induced dynamics between intraindividual variation and trait means across vegetative, phenological, and floral traits

American Journal of Botany, EarlyView.
Abstract Premise Intraindividual variation in reiterated structures (e.g., leaves) represents an important dimension of phenotypic variation that contributes to functional diversity and the dynamics of ecological communities. It can be expressed differently across plant traits, but how environmental drivers affect intraindividual variation in different
Charlotte Møller, Martí March‐Salas, Mar Sobral, Judith Haase, Pieter De Frenne, J. F. Scheepens   +5 more
wiley   +1 more source

Atributos biológicos do solo sob influência da cobertura vegetal e do sistema de manejo Soil biological attributes influenced by cover crops and management systems

Pesquisa Agropecuária Brasileira, 2007
O objetivo deste trabalho foi avaliar os efeitos de culturas de cobertura e dos sistemas plantio direto (PD) e convencional (PC) sobre indicadores biológicos do solo, cultivado com feijoeiro-comum, no inverno, sob irrigação.
Mozaniel Batista da Silva, Huberto José Kliemann, Pedro Marques da Silveira, Anna Cristina Lanna   +3 more
doaj   +1 more source

Effect of Laser Posterior Nasal Neurolysis for the Treatment of Chronic Rhinitis: A Randomized Controlled Trial

International Forum of Allergy &Rhinology, EarlyView.
ABSTRACT Background To determine the safety and efficacy of laser ablation of the posterior nasal nerve (PNN) for the treatment of chronic rhinitis. Methods This study was a single‐center, prospective, single‐blinded, randomized sham‐controlled trial. Patients with a 24‐h reflective Total Nasal Symptom Score (rTNSS) ≧ 5, rhinorrhea ≧ 2, and congestion ≧
Jyun‐Yi Liao, En‐Ying Wang, Ying‐Shuo Hsu, Ming‐Shao Tsai, Cheng‐Jung Wu, Chia‐Hao Chang, Yi‐Li Hwang, Han‐Lo Teng, Jun‐Wei Hsieh, Chien‐Yu Huang   +9 more
wiley   +1 more source

Frost Hazard Assessment on Agricultural Land to Achieve Resilient Agriculture in Dieng Volcanic Highland, Central Java

Ilmu Pertanian (Agricultural Science), 2019
Dieng Volcanic Highland is one of the most intensive potato agricultural land in Indonesia, as well as frost disaster prone area. Frost indicated by appearance of frozen dew on the ground or vegetation surface due to cold temperatures during dry season ...
Aditya Pradana, Aida Mardiana, Fathimah Nur Lestari, Futuha Helen Sara, Sani Afifah, Emilya Nurjani   +5 more
doaj   +1 more source

Complications and Clinical Outcomes Following Modified Endoscopic Denker's With Pyriform Aperture Preservation: A Prospective Analysis

International Forum of Allergy &Rhinology, EarlyView.
ABSTRACT Background The modified endoscopic Denker's (MED) approach provides access to all maxillary sinus (MS) walls for resection of various MS and retromaxillary pathologies, but the anteromedial maxilla has historically been resected. This study determined complication rates and outcomes following MED with pyriform aperture (PA) preservation ...
Yasser Almansour, Lane Donaldson, Khaled Kashlan, Swapna Vemuri, Jun Jin, John R. Craig   +5 more
wiley   +1 more source

Effect of Spraying Salicylic Acid and Seeding Rates on Wheat Plants under Water Stress

Proceedings of the International Conference on Applied Innovations in IT
An experiment has been done in a flowerpot for the study of seeding effect and on salicylic acid on the production of wheat under moisture tension by using the system of split bars once, and tri-repeated Random Complete Block Design (RCBD).So, the whole ...
Ruwaida Mohsen Hamid
doaj   +1 more source