Results 161 to 170 of about 373,912 (336)

Resposta do feijoeiro a doses de fósforo em solo arenoso

Ciência Rural, 2001
A disponibilidade de fósforo é influenciada por vários atributos do solo que afeta a resposta das culturas à aplicação de P. Foi conduzido um experimento a campo, na Fazenda Experimental de Mocambinho (EPAMIG), na região do Projeto Jaíba, Norte de Minas ...
Silva Enilson de Barros, Resende José Carlos Fialho de, Cintra Welber Braga Rennó   +2 more
doaj  

Dismantling the genus Tarenna (Rubiaceae: Pavetteae) in Africa and Madagascar, with the description of three new genera

TAXON, EarlyView.
Abstract As presently circumscribed, the Paleotropical genus Tarenna, belonging to the tribe Pavetteae (Rubiaceae), comprises about 200 species and has its centres of diversity in tropical Asia and Africa. Previous molecular phylogenetic studies of the tribe revealed the polyphyly of Tarenna, suggesting that the genus needs to be recircumscribed ...
Petra De Block, Sylvain G. Razafimandimbison, Franck Rakotonasolo, Steven B. Janssens   +3 more
wiley   +1 more source

Foliar heavy metal uptake, toxicity and detoxification in plants: A comparison of foliar and root metal uptake.

Journal of Hazardous Materials, 2017
M. Shahid, C. Dumat, S. Khalid, E. Schreck, Tiantian Xiong, N. Niazi   +5 more
semanticscholar   +1 more source

Spraying drones: efficacy of integrating an avian repellent with drone hazing to elicit blackbird flock dispersal and abandonment of sunflower fields

Wildlife Biology, EarlyView.
Multiple management strategies exist to combat bird damage to agriculture. We explored combining two tools, drones as frightening devices and an avian repellent, to assess effectiveness of an integrated method to deter large flocks on complex landscapes. We evaluated the ability of a spraying drone (DJI Agras MG‐1P) deploying Avian Control (i.e. active
Jessica L. Duttenhefner, Timothy J. Greives, Page E. Klug   +2 more
wiley   +1 more source

Assessing an Optical Tool for Identifying Tidal and Associated Mangrove Swamp Rice Fields in Guinea-Bissau, West Africa

Land
An optical remote sensing approach was developed to identify areas with high and low salinity within the mangrove swamp rice system in West Africa.
Jesus Céspedes, Jaime Garbanzo-León, Marina Temudo, Gabriel Garbanzo   +3 more
doaj   +1 more source

Horticultural Studies 1999 [PDF]

, 1999
Horticultural Studies 1999 is the second edition of a Research Series dedicated to horticultural programs in the University of Arkansas Division of Agriculture and the Dale Bumpers College of Agricultural, Food and Life Sciences.
Clark, John R., Richardson, Michael D.
core   +4 more sources

Foliar fertilization of olives

Glasnik Zaštite Bilja, 2022
Foliar fertilization of olives is an important technological aspect in modern olive growing. Due to the large leaf area that the olive tree has, the application of foliar fertilizers is very effective. It is especially important to apply foliar fertilizers when growing olives on shallow, rocky soils and in conditions of drought and high temperatures ...
openaire   +1 more source

Internal physiological drivers of leaf development in trees: Understanding the relationship between non‐structural carbohydrates and leaf phenology

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Plant phenology is crucial for understanding plant growth and climate feedback. It affects canopy structure, surface albedo, and carbon and water fluxes. While the influence of environmental factors on phenology is well‐documented, the role of plant intrinsic factors ...
Yunpeng Luo, Constantin Zohner, Thomas W. Crowther, Jianlan Feng, Günter Hoch, Peng Li, Andrew D. Richardson, Yann Vitasse, Arthur Gessler   +8 more
wiley   +1 more source

CONCENTRACIÓN FOLIAR DE NUTRIMENTOS EN PLANTACIONES DE TECA EN LA CUENCA DEL CANAL DE PANAMÁ

Agronomía Costarricense, 2014
Se colectó 89 muestras de hojas en plan - taciones de teca en la Cuenca del Canal de Pana - má, con el fin de determinar la variación de la concentración foliar de macro y microelementos según el crecimiento de los árboles (bajo, medio y alto crecimiento
Rafael Murillo, Alfredo Alvarado, Jean Mark Verjans   +2 more
doaj  

Organic Spring Wheat Variety Trial [PDF]

, 2016
In 2016, the University of Vermont Extension Northwest Crops and Soils Program evaluated eighteen hard red spring wheat to determine which varieties thrive in organic production systems.
Brigham, Nate, Cubins, Julija, Cummings, Erica, Darby, Heather, Emick, Hillary, Ziegler, Sara   +5 more
core   +1 more source