Results 121 to 130 of about 18,616 (246)

Input of nitrogen from N2 fixation to northern grasslands [PDF]

open access: yes, 2005
Forage legumes form N2-fixing symbioses with rhizobia and may thus make substantial contributions to the N pool in grasslands. However, to optimize their use as sources of N, it is important to elucidate the effects of management factors that influence ...
Carlsson, Georg
core  

Feeding ecology of Australian Christmas beetles (Coleoptera: Scarabaeidae: Rutelinae): Implications for conservation and habitat management

open access: yesAustral Entomology, Volume 65, Issue 2, May 2026.
Abstract Christmas beetles (subfamily Rutelinae, genera Anoplognathus, Calloodes and Repsimus) are an ecologically important and culturally significant group of Australian scarabs, known for their striking appearance and seasonal mass emergences. Over the last decade, anecdotal reports suggest widespread population declines, raising concerns about ...
Tanya Latty   +3 more
wiley   +1 more source

Senescent trees stabilize aboveground wood net primary production immediately after disturbance [PDF]

open access: yes, 2020
In the United States, forests sequester 17% of national carbon (C) emissions annually (UGCRP, 2018), however shifting forest disturbances threaten the stability of this essential C sink.
Grigri, Maxim S
core   +2 more sources

Forage Biomass and Chemical Composition of Buffelgrass Genotypes in the Semi‐Arid Region of Brazil

open access: yesNew Zealand Journal of Agricultural Research, Volume 69, Issue 2, April 2026.
Forage improvement in semi‐arid regions requires the identification of genotypes capable of maintaining productivity under climatic variability and chronic water scarcity. This study evaluated six buffelgrass (Cenchrus ciliaris L.) genotypes over two production years in northern Minas Gerais, Brazil, to characterize their agronomic, morphological, and ...
Maikom Bruno Gonçalves   +9 more
wiley   +1 more source

Balancing Production and Environmental Goals in Pasture‐Based Dairy Systems: A Longitudinal Case Study of Transition in a High Performing New Zealand Farm

open access: yesNew Zealand Journal of Agricultural Research, Volume 69, Issue 2, April 2026.
Production and environmental outputs of intensive pasture‐based dairy systems must be rebalanced to reduce overall environmental footprint. This analysis documents the tactical management changes that enabled Lincoln University Dairy Farm (LUDF) to transition from high nitrogen (N) inputs (345 kg N fertiliser/ha/year) to a lower N input strategy (167 ...
David F. Chapman
wiley   +1 more source

Application of ERTS-1 imagery and underflight photography in the detection and monitoring of forest insect infections in the Sierra Nevada Mountains of California [PDF]

open access: yes
The author has identified the following significant results. Analysis of ERTS-1 imagery with underflight aerial photo support including U-2, in the Sierra Nevada Mountains of California, indicates promising possibilities of detecting and monitoring ...
Hall, R. C., Koerber, T. W., Wert, S. L.
core   +1 more source

The Response of Zigadenus fremontii to Variation in Fire Regime [PDF]

open access: yes, 2010
California\u27s chaparral shrub communities are naturally exposed to dry-season fire. It could be reasoned that prescription burns set during the wet season by land managers would have more detrimental effects on plant regeneration than dry season fires
Dinis, Shannon Elizabeth
core   +1 more source

Hydrological Conditions Outweigh Soil Texture, Temperature, and Terrain in German Agricultural Land Use

open access: yesJournal of Plant Nutrition and Soil Science, Volume 189, Issue 2, Page 243-254, April 2026.
ABSTRACT Background The availability of fertile land suitable for agriculture is limited. In the European Union, political demand for self‐sufficiency in staple food production currently competes with increasing ambitions for nature restoration and green energy. Meanwhile, the overall agricultural area shrinks due to land sealing.
David Emde   +3 more
wiley   +1 more source

P77 Defoliation intensity impacts on feeding station exploration by dairy cows

open access: yesAnimal - science proceedings, 2023
G. Menegazzi   +5 more
openaire   +1 more source

Characteristics of fungicide resistance in Asian soybean rust (Phakopsora pachyrhizi) in Paraguay for 2022–2023: insights from genetic mutations and molecular dynamics simulations

open access: yesPest Management Science, Volume 82, Issue 4, Page 3116-3126, April 2026.
Phakopsora pachyrhizi in Paraguay showed diverse resistance to DMI, SDHI, and QoI fungicides at both regional and intra‐field levels, likely driven by target mutation genes. Abstract BACKGROUND Phakopsora pachyrhizi, the causative agent of Asian soybean rust, poses a major threat to soybean production in South America. The rising incidence of fungicide
Ryusuke Hagihara   +5 more
wiley   +1 more source

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