Results 91 to 100 of about 33,773 (209)

Syntaxonomic conspectus of the vegetation of Catalonia and Andorra. I: Hygrophilous herbaceous communities.

open access: yes, 2000
The first part of a general survey of the vegetation of Catalonia and Andorra, this paper reports all the phytocoenological associations and subassociations recorded in this area.
Carreras i Raurell, Jordi   +3 more
core  

Nitrogen transfer between clover and wheat in an intercropping experiment [PDF]

open access: yes, 2006
A novel approach to the problem of improving nitrogen supply in organic farming is to use intercropping of cereals with a legume to provide nitrogen transfer within a season and/or to following crops. The affects of intercropping were studied in a column
Pappa, V A, Rees, R M, Watson, C A
core  

Nuevas especies del género Liriomyza Mik (Diptera: Agromyzidae) en el altiplano de Bogotá (Cundinamarca, Colombia)

open access: yesCaldasia, 1993
Seven new species of the genus Liriomyza Mik are described from the altiplano de Bogotá, these findings increase the number of species of the genus from twelve to nineteen in the zone.
Sanabria de Arévalo Isabel
doaj  

The phytosociology of calcareous grasslands in the British Isles. [PDF]

open access: yes, 1968
The thesis attempts a broad overall survey and classification according to the Zurich-Montpellier system ofplant sociology, of limestone grassland vegetation in the British Isles The classification is based on some 535 grassland Aufnahmen and 75 ...
Shimwell, David William
core   +1 more source

Organic beef and sheep production in the uplands [PDF]

open access: yes, 2002
The organic unit at ADAS Redesdale was established to evaluate the physical and financial implications of converting a progressive hill/upland unit to an organic system.
ANON
core  

Integration of Elymus repens control and post-harvest catch crop growing in organic cropping systems [PDF]

open access: yes, 2005
In Northern Europe, Elymus repens (L.) Gould infestations are traditionally controlled by repeated stubble cultivation in the period from harvest to ploughing in autumn. However, in organic farming, post-harvest tillage is undesirable due to the need for
Bertelsen, Inger   +2 more
core  

Home - About - Disclaimer - Privacy