Results 31 to 40 of about 55,634 (172)

The impacts of biological invasions

open access: yesBiological Reviews, EarlyView.
ABSTRACT The Anthropocene is characterised by a continuous human‐mediated reshuffling of the distributions of species globally. Both intentional and unintentional introductions have resulted in numerous species being translocated beyond their native ranges, often leading to their establishment and subsequent spread – a process referred to as biological
Phillip J. Haubrock   +42 more
wiley   +1 more source

Cut fallow to replace black fallow in an organic production system [PDF]

open access: yes, 2015
Couch grass (Elymus repens) has large impact on yield and management strategies in temperate areas of the world. The control is to a large extent based on repeated soil cultivations in organic farming.
Bergkvist, Göran   +3 more
core  

Yield, Evapotranspiration, Production Functions, Crop Coefficients, Water Productivity and Soil‐Water Extraction of Three Watermelon Varieties

open access: yesIrrigation and Drainage, EarlyView.
ABSTRACT While watermelon is an important commodity in the United States and worldwide, some of the fundamental watermelon productivity indices (crop evapotranspiration [ETc], transpiration [Tr], evaporation [E], ET‐yield production functions [ETYPF], basal crop coefficients [Kcb], crop water productivity [CWP], soil‐water extraction [SWE]) have not ...
Suat Irmak
wiley   +1 more source

Дослідження вуглеводневого складу у підземних органах Пирію повзучого

open access: yesAnnals of Mechnikov's Institute
Introduction. Today  in Ukraine there is a tendency to expand scientific research on the study of medicinal plants. According to the literature, plants are a source of primary and secondary metabolites that have a wide spectrum of pharmacological and ...
Tetyana Momot   +3 more
doaj   +1 more source

Nitrate leaching from arable crop rotations in organic farming [PDF]

open access: yes, 2004
Nitrate leaching from crop rotations for organic grain production were investigated in a field experiment on different soil types in Denmark from 1997 to 2002.
Askegaard, Margrethe   +2 more
core  

Time tells: plasticity and developmental asynchrony underlie trait variation in a dune‐building grass

open access: yesOikos, EarlyView.
Habitat‐modifying plants engineer landscapes through plant‐environment feedbacks. The strength of these feedbacks is determined by above‐ and below‐ground traits shaping landscape morphology. Besides interspecific differences, recent findings highlight that intraspecific trait variation, such as shoot density, can also influence landscape morphology ...
Solveig Höfer   +9 more
wiley   +1 more source

Common Couch-grass control with less tillage [PDF]

open access: yes, 2004
Control of Common Couch-grass often conflicts with the need to retain nutrients in organic cropping systems, as it involves intensive tillage in the post-harvest period.
Bertelsen, Inger   +2 more
core  

Queering Institutional Milestones in Elite Higher Education: Queer Perspectives on Princeton University and Coeducation (1960–1980)

open access: yesGender &History, EarlyView.
ABSTRACT A new archive of oral history interviews from LGBTQIA‐identified alumni, faculty and staff reveals the complex ways that queer and transgender students understood, experienced and remembered the long transition from single‐sex to coeducation at Princeton University.
Ezelle Sanford III   +2 more
wiley   +1 more source

Detection of gene clusters for biodegradation of alkanes and aromatic compounds in the Rhodococcus qingshengii VKM Ac-2784D genome

open access: yesВавиловский журнал генетики и селекции, 2023
Bacterial species of the genus Rhodococcus are known to be efficient degraders of hydrocarbons in contaminated soil. They are also employed for bioremediation of polluted environments.
Yu. A. Markova   +2 more
doaj   +1 more source

Farming across the years: temporal and spatial dimensions of learning organic farming [PDF]

open access: yes, 2002
In organic farming, it is generally accepted that a long-term perspective spanning across the years is necessary for the sustainability of organic field management. This paper analyzes the crossing over of annual boundaries during an organic inspection
Koskimies, H., Seppänen, L.
core  

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