Results 101 to 110 of about 3,023 (209)

Testing the sustainability of stockless arable organic farming on a fertile soil (OF0145) [PDF]

open access: yes, 2001
This is the final report of Defra project OF0145. If organic farming is to expand in the arable east of England, where the knowledge, infrastructure and capital for livestock are not available, viable stockless systems will be needed.
Cormack, W. F.
core  

Effect of weeds on pea (Pisum sativum) seed germination

open access: yesAgrology
Segetal vegetation should be controlled both during crop growing season and after harvesting. The reason is that undesirable vegetation accumulates a significant mass, one that will later become a threat to the following crop in crop rotation.
S. E. Okrushko   +2 more
doaj   +1 more source

Effect of Rhizome Fragmentation, Clover Competition, Shoot-Cutting Frequency, and Cutting Height on Quackgrass (Elymus repens) [PDF]

open access: yes, 2018
Quackgrass is a problematic agricultural weed in the temperate zones of the world and is difficult to control without herbicides or intensive tillage. However, it may be possible to control quackgrass with less environmental impact by combining multiple ...
Melander, Bo, Ringselle, Bjørn
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Rhizome Fragmentation by Vertical Disks Reduces Elymus repens Growth and Benefits Italian Ryegrass-White Clover Crops [PDF]

open access: yes, 2017
Tillage controls perennial weeds, such as Elymus repens, partly because it fragments their underground storage organs. However, tillage is difficult to combine with a growing crop, which limits its application.
Bertholtz, Erik   +5 more
core  

Pastures in the zone of temperate climate: trends for development, dynamics, ecological fundamentals of rational use [PDF]

open access: yes, 2011
The peculiarities of historical phases of steppe ecosystems transformation influenced by grazing pressure have been analysed, estimations of well-directed modification of organic carbon and biogeochemical flows in the system "vegetation-soil" have been ...
Chernyavskikh, V. I.   +2 more
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Роль структурно-функціональної організації урбофітоценозів для індикації стану навколишнього середовища [PDF]

open access: yes, 2013
Вивчення структурно−функціональної організації рослинних угруповань у різних еколого-фітоценотичних умовах нерідко стає ключем для рішення багатьох теоретичних і практичних проблем екології. При цитуванні документа, використовуйте посилання http://essuir.
Кузнецова, О.В.
core  

Discovery of Anti-Coronavirus Cinnamoyl Triterpenoids Isolated from Hippophae rhamnoides during a Screening of Halophytes from the North Sea and Channel Coasts in Northern France. [PDF]

open access: yesInt J Mol Sci, 2023
Al Ibrahim M   +10 more
europepmc   +1 more source

De droge stroomdalgraslanden van het Sedo-Cerastion in Nederland : verspreiding en soortensamenstelling van het Medicagini-Avenetum en het Sedo-Thymetum vóór 1960 en daarna [PDF]

open access: yes, 2008
Dit rapport geeft de vegetatiekundige geschiedenis weer van de stroomdalgraslanden in Nederland. Voor het eerst zijn gegevens uit de jaren ’50 en ’60 gedigitaliseerd en gebruikt om een referentiebeeld te bepalen van het voorkomen, de standplaatsen en de ...
Huiskes, H.P.J.   +3 more
core   +1 more source

Kvikbestandens udvikling i det økologiske sædskifteforsøg på Jyndevad [PDF]

open access: yes, 2013
Faktark med resultater fra HighCrop-projektet på side 1 samt praktiske overvejelser på side ...
Madsen, K.H.   +2 more
core  

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