Results 41 to 50 of about 246,374 (311)

Climatic, edaphic, and biotic controls over storage and turnover of carbon in soils [PDF]

, 1994
Soil carbon, a major component of the global carbon inventory, has significant potential for change with changing climate and human land use. We applied the Century ecosystem model to a series of forest and grassland sites distributed globally to examine
Braswell, Rob, Holland, Elisabeth A, McKeown, R, Ojima, Dennis S, Painter, Thomas H, Parton, W J, Schimel, David S, Townsend, Alan R   +7 more
core   +2 more sources

Do outgrower schemes enhance technology adoption and productivity? Evidence from maize farmers in Northern Ghana

Agribusiness, EarlyView.
Abstract Nucleus outgrower schemes are contractual arrangements where well‐resourced large‐scale farmers (nucleus farmers) are empowered by development support agencies to take charge of smallholder farmers, by providing them with market access and the necessary training on agronomic practices and farm inputs for production.
Dominic Tasila Konja, Awudu Abdulai
wiley   +1 more source

Tropical forest restoration: Fast resilience of plant biomass contrasts with slow recovery of stable soil C stocks [PDF]

, 2017
Due to intensifying human disturbance, over half of the world's tropical forests are reforested or afforested secondary forests or plantations. Understanding the resilience of carbon (C) stocks in these forests, and estimating the extent to which they ...
Ciais P., FAO, Gu W., IPCC, Li Q., Li Z., Liu G., Lyu M., R Core Team, Wang F., Wen D., Yao Q., Yu Z.   +12 more
core   +3 more sources

Examining the Impact of Row Planting on Labor Use for Sustainable Food Production Among Maize Farmers in Rural Ghana

Agribusiness, EarlyView.
ABSTRACT Smallholder farmers are reverting to traditional production methods due to the high opportunity costs and unintended consequences of new technologies. This study focuses on row planting technology, which is labor‐intensive and slow without mechanized operations.
Emmanuel Tetteh Jumpah, Habtamu Alem, Abdulai Adams, Tomáš Ratinger, Miroslava Bavorová   +4 more
wiley   +1 more source

Tropical Volcanic Residual Soil

, 2022
In West Lampung, Sumatra, Indonesia, tropical volcanic residual soils are formed from weathering of volcanic breccias in hydrothermal alteration areas with a thickness of up to 20 m. This soil has the characteristics of clayey silt, low to high plasticity, brownish-red color, has the potential to swelling, easily eroded, and slide when it is saturated,
Prahara, Iqbal,, Dicky, Muslim,, Zufialdi, Zakaria,, Haryadi, Permana,, Jaya, Syahbana, Arifan, Aji, Satriyo, Nugroho, Yunarto, ,, Jakah, ,, Nur, Khoirullah,   +8 more
openaire   +3 more sources

Processes that influence dissolved organic matter in the soil: a review

Scientia Agricola
: In tropical regions, climate conditions favor fast decomposition of soil organic matter (SOM), releasing into the soil organic composts in solid, liquid, and gaseous forms with variable compositions. Dissolved organic matter (DOM), a complex mixture of
Maria Regina Gmach, Maurício Roberto Cherubin, Klaus Kaiser, Carlos Eduardo Pellegrino Cerri   +3 more
doaj   +1 more source

The influence of soil communities on the temperature sensitivity of soil respiration [PDF]

, 2018
Soil respiration represents a major carbon flux between terrestrial ecosystems and the atmosphere, and is expected to accelerate under climate warming.
AM Makarieva, B Bond-Lamberty, B Bond-Lamberty, B Bond-Lamberty, CD Koven, CE Hicks Pries, CJ Mikan, CO Nielsen, CP Giardina, E Dorrepaal, EA Davidson, EA Davidson, G Yvon-Durocher, H Chen, H Ferris, H Petersen, J Kozlowski, J Laybourn, J Yang, JA Subke, JC Carey, JF Exbrayat, JH Brown, JH Brown, JS Clein, JW Raich, K Karhu, KB Suttle, LE Rustad, M Nie, M Reichstein, MA Bradford, MD Mahecha, MJI Briones, MP Thakur, N Eisenhauer, N Fierer, P Hogberg, PM Cox, R Aerts, R Klekowski, RB Ehnes, RM Sibly, SL Chown, T Fenchel, TC Balser, TD Meehan, TW Crowther, X Xu   +48 more
core   +1 more source

Liquid Jetting‐Based Miniature Robotic Navigation in Confined Fluidic Spaces

Advanced Intelligent Systems, EarlyView.
We introduce a new class of liquid‐jetting‐based miniature robots (JetBots) ranging in size from mm‐to‐cm, featuring a unified approach in design, fabrication, and actuation. They demonstrate fast locomotion (30.3 cm/s), rapid steering (648.8°/s), and diverse functions, such as puncturing soft materials and unlimited cargo sampling and delivery, paving
Debasish Roy, Tianlu Wang
wiley   +1 more source

Tannin with sodium carbonate: A single additive for poured earth concrete with tropical soils

Results in Engineering
Building sustainable earth construction to replace cement concrete is a major challenge in fast-developing tropical regions. Poured earth, shaped like concrete, offers a cost-effective and eco-friendly alternative.
Lily Walter, Gildas Medjigbodo, Yannick Estevez, Laurent Linguet, Ouahcène Nait-Rabah   +4 more
doaj   +1 more source

Perspective d'utilisation des termitières dans l'amélioration de la fertilité des sols tropicaux : cas d'une expérimentation en pots de végétation [PDF]

Tropicultura, 1992
Perspective of termitary mounds utilization in improvement of tropical soil fertility : case of a pot vegetation experiment. The fertilizing power offive termitary mounds of Yakonde soil serie (Y2) in Yangambi has been tested by rice growing in ...
Endubu, M., Kombele, BM., Litucha, BM., Mambani, B.   +3 more
doaj