Results 151 to 160 of about 374,192 (343)

The effect of nitrogen fertilization on the humification of the peat in cultivated Sphagnum bogs

open access: yesAgricultural and Food Science, 1962
The paper is a report on the volume weights of the ash-free, dry peat on the cultivated Sphagnum bog at Leteensuo found in connection with different degrees of nitrogen fertilization.
Yrjö Pessi
doaj  

Towards sustainable ecological networks of peat bogs in central Russia; development of local environmental action program (LEAP) as a practical tool for protection and restoration of peat bogs in Egorievsk sub region [PDF]

open access: yes
In central and northern Meshera the habitats for many characteristic peat bog species now show a very fragmented pattern. As a result, the potential for viable populations of characteristic peat bog species has decreased considerably.
Bondartchuk, E.A.   +4 more
core  

Larval antibiosis to cabbage stem flea beetle (Psylliodes chrysocephala) is absent within oilseed rape (Brassica napus)

open access: yesPest Management Science, EarlyView.
We screened a panel of 98 Brassicaceae genotypes (97 Brassica napus and 1 Sinapis alba) for cabbage stem flea beetle (Psylliodes chrysocephala) larval antibiosis. We found limited evidence for antibiosis across B. napus but consistent antibiosis in S. alba. Brassicaceae relatives may therefore better inform resistance traits for breeding.
Ryan E Brock   +3 more
wiley   +1 more source

Fertilization of Sphagnum bogs, on the basis of certain field experiments at Leteensuo

open access: yesAgricultural and Food Science, 1960
The present investigation is an account of the results from two fertilizing experiments established on Sphagnum bog at the Experimental Station of Leteensuo. The experiments were carried out in 1923 and 1934.
Yrjö Pessi
doaj  

Alcoholic extracts of Russian sage (Salvia yangii) contain bioactive terpenoids with inhibitory activity against grapevine downy mildew (Plasmopara viticola)

open access: yesPest Management Science, EarlyView.
Alcoholic extracts from flowers, leaves, and shoots of Russian sage decreased downy mildew severity on grapevine leaf disks. Fractionation followed by metabolomic analysis revealed putative terpenoids as the main components of the active fractions. Specifically, 7‐methylrosmanol, 12‐O‐methylcarnosic acid, carnosic acid, and carnosol were identified as ...
Anna Smaldone   +5 more
wiley   +1 more source

Exploring the limits of knowledge on boreal peatland development using a new model: the Holocene Peatland Model [PDF]

open access: yes, 2010
The Holocene Peatland Model (HPM) (Frolking et al. 2009, Frolking et al. in prep.) is a recently developed tool integrating up-to-date knowledge on peatland dynamics that explores peatland development and carbon dynamics on a millennial timescale.
Frolking, Steve   +4 more
core   +1 more source

Steaming soil is effective in eliminating invasive alien plants (IAPs) – part I: effect of exposure method

open access: yesPest Management Science, Volume 81, Issue 4, Page 2032-2039, April 2025.
As regulations on chemical pesticides become more stringent, it is likely that there will be interest in water steam as an alternative approach for soil disinfestation. This study investigated the feasibility of utilizing a soil steaming device for thermal control of selected invasive alien plants and showed a promising mortality rate for their ...
Zahra Bitarafan   +4 more
wiley   +1 more source

Greenhouse gas emissions from ditches in oil palm plantations on tropical peatlands in Malaysia

open access: yesScientific Reports
Tropical peatlands, which store 20% of global peat carbon, are increasingly threatened by conversion to alternative land-uses such as oil palm plantations, pulp wood plantations, crop growth or other economic activities.
Kuno Kasak   +10 more
doaj   +1 more source

Effects of timed LED regimes on tomato plant traits, performance of two‐spotted spider mites, and predatory mites (Phytoseiulus persimilis)

open access: yesPest Management Science, Volume 81, Issue 4, Page 2300-2311, April 2025.
Light‐emitting diode (LED)‐based treatments for enhancing crop production and pest management have primarily focused on continuous treatments. This study, using Tetranychus urticae and Phytoseiulus persimilis, demonstrates that the timing of LED supplementation is crucial for designing integrated pest management strategies that improve both plant ...
Patrice Savi   +5 more
wiley   +1 more source

Strategies for Assessing Post‐Wildfire Geomorphic Resilience in Semiarid Rivers

open access: yesRiver Research and Applications, EarlyView.
ABSTRACT We review and summarize diverse components of a catchment that can be monitored after wildfire to assess the geomorphic resilience of the river corridor in semiarid regions. We distinguish upland portions of river catchments from river corridors.
Ellen Wohl   +8 more
wiley   +1 more source

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