Results 91 to 100 of about 57,676 (303)

Testing surfactants as additives for clay improvement: compaction and suction effects [PDF]

, 2016
Environmental Geotechnics (Joint TC106-TC215 Session)This paper presents an exploratory study on surfactants as additives to improve soil properties. It is hypothesized that surfactant molecules populate the air-water interfaces reducing surface tension ...
Cui, Y-J, Delage, P, Ghabezloo, S, Jones, N, Nunes Lourenco, SD, Paul, A, Pereira, J-M, Tang, A-M   +7 more
core   +1 more source

Testing optimal defense theory: Root resistance selection in chicory (Cichorium intybus) reduces foliar defense and alters aphid performance and feeding behavior

Pest Management Science, EarlyView.
Root‐focused resistance in chicory reduces defenses in leaves, impairing root aphids but enhancing foliar aphid performance. Selecting root resistance can create unintended trade‐offs across plant organs. Abstract BACKGROUND Plants are constantly exposed to a wide range of herbivores at both aboveground (AG) and belowground (BG) levels, involving ...
Thomas Cochenille, Clément Baracchini, Géraldine Doury, Audrey Six, Kévin Tougeron, Arnaud Ameline   +5 more
wiley   +1 more source

Effect of initial conditions on strength of unsaturated compacted loess soil

Građevinar, 2014
The influence of grain size distribution, initial moisture, dry bulk density, and capillary suction on an increase in shear strength of unsaturated compacted silty loess soil is presented in the paper.
Gordana Hadži-Niković, Slobodan Ćorić, Laslo Čaki   +2 more
doaj   +1 more source

Capillary barrier effect on the response of residual slope to rainfall infiltration [PDF]

, 2008
Rainfall-induced slope failure is a common problem in areas covered by residual soil in tropical countries. The soil exists in unsaturated condition as ground water table is located well below the ground surface.
Chai, Erwin Pak Shin
core  

The epidemiology of the blackleg pathogen, Leptosphaeria maculans, impacts fungicide resistance management strategies

Pest Management Science, EarlyView.
Understanding how infection timing drives disease is essential for the development of fungicide resistance management strategies. For blackleg disease of canola, all infection timings can contribute to the following generation, therefore all fungicide applications have the ability to select for resistance.
Alec J McCallum, Sean Roberts, Alexander Idnurm, Angela P Van de Wouw   +3 more
wiley   +1 more source

Reconciling soil-water retention properties and shear strength parameters of compacted clayey soils via suction-controlled ring shear testing

E3S Web of Conferences, 2016
A preliminary experimental program has been undertaken to assess suction-controlled peak and residual shear strength properties of a statically compacted, moderate plasticity clayey soil. The experimental program was accomplished in a fully servo/suction-
Hoyos Laureano R., Yepes Jairo E., Puppala Anand J.   +2 more
doaj   +1 more source

Analysis of the water absorption test to assess the intrinsic permeability of earthen materials  [PDF]

, 2019
International ...
Antonin Fabbri, Araldi, Arrigoni, Baroghel-Bouny, Breysse, Brooks, Bruno, Bui, Carmeliet, Chabriac, Chabriac, Champiré, Corey, Coussy, Cui, Feng, Fionn McGregor, Gardner, Ghabezloo, Gomes, Habert, Hall, Jaquin, Jean-Claude Morel, Karagiannis, Lai, Lucile Soudani, McGregor, Miller, Morel, Pasha, Raimondo, Roels, Soudani, Svennberg, Van Genuchten, Vololonirina, Wilson, Zillig   +38 more
core   +2 more sources

Pesticide use in integrated pest and pollinator management framework to protect pollinator health

Pest Management Science, Volume 81, Issue 4, Page 1691-1696, April 2025.
Integrated pest management (IPM) emphasizes non‐chemical methods, with pesticides as a last resort, while integrated pest and pollinator management (IPPM) integrates pollinator health into pest control strategies. Abstract Agricultural pesticides have historically been a critical tool in controlling pests and diseases, preventing widespread suffering ...
Ngoc T Phan, David J Biddinger, Edwin G Rajotte, Guy Smagghe, Gadi VP Reddy, Zong‐Xin Ren, Neelendra K Joshi   +6 more
wiley   +1 more source

Indirect verification of suction in cyclic UCS tests of a chemically stabilized soil [PDF]

E3S Web of Conferences
The present study aims to indirectly evaluate the occurrence of suction and its effects in laboratory tests of a chemically stabilized soft soil. To achieve these goals, a series of unconfined compressive strength (UCS) and triaxial tests were performed,
Martins Ligia A., Correia AntYónio A.S., Oliveira Paulo J. Venda, Lemos Luis J.L.   +3 more
doaj   +1 more source

A Bio-Wicking System to Mitigate Capillary Water in Base Course [PDF]

, 2016
Water within pavement layers is the major cause of pavement deteriorations. High water content results in significant reduction in soil’s resilient behavior and increase in permanent deformation. Conventional drainage systems can only drain gravity water
Lin, Chuang, Zhang, Xiong
core