Zobrazeno 1 - 10
of 289
pro vyhledávání: '"Vegetation Science, Plant Ecology and Weed Science"'
Autor:
Anneke de Rouw, Catharina van Oers
Publikováno v:
Weed Research 28 (1988)
Weed Research, 28, 373-381
Weed Research, 28, 373-381
Summary In the Tai region of the Ivory Coast, mature forest is felled and burned and a crop of rice is grown; forest is then allowed to regenerate for 20 or more years before being cropped again. The top 10 cm of soil beneath a 21-year-old forest pri
Autor:
Harro J. Bouwmeester, Cees M. Karssen
Publikováno v:
Annals of Botany 72 (1993)
Annals of Botany, 72, 463-473
Annals of Botany, 72, 463-473
Seeds of Chenopodium album L. were buried under field and controlled conditions. The germination capacity of these seeds was tested over a range of conditions at regular intervals. Seed buried in the field only showed small seasonal changes in germin
Autor:
Harro J. Bouwmeester, Cees M. Karssen
Publikováno v:
New Phytologist 124 (1993)
New Phytologist, 124, 179-191
New Phytologist, 124, 179-191
SUMMARY The effect of environmental conditions on changes in dormancy and germination of seeds of Sisymbrium officinale (L.) Scop, was studied. Seeds were buried in soil in the field or in incubators and at regular intervals, germination of exhumed s
Publikováno v:
Aquatic conservation: marine and freshwater ecosystems, 3, 25-41
Aquatic conservation: marine and freshwater ecosystems 3 (1993)
Aquatic conservation: marine and freshwater ecosystems 3 (1993)
1. It is hypothesized that the recent intensification of agricultural practice in the coastal fringe of West Connemara, Ireland, has affected the vegetation of vulnerable ecosystems like lakes and wetlands. 2. Lakes and wetlands, arranged in three tr
Autor:
A.P. Everaarts
Publikováno v:
Netherlands Journal of Agricultural Science, 40, 73-90
Netherlands Journal of Agricultural Science 40 (1992)
Netherlands Journal of Agricultural Science 40 (1992)
Competition between weeds and groundnuts was studied in two field experiments in the inland Zanderij area of Suriname. The crop was kept weed-free or without weed control for increasing periods of time after planting. Observations made at the end of
Autor:
A.P. Everaarts
Publikováno v:
Netherlands Journal of Agricultural Science, 40, 91-107
Netherlands Journal of Agricultural Science 40 (1992)
Netherlands Journal of Agricultural Science 40 (1992)
Two field experiments were carried out in the inland Zanderij area of Suriname to study competition between soyabeans and weeds. The crop was kept weed-free or without weed control for increasing periods of time after sowing. An analysis of the growt
Autor:
A. P. Everaarts
Publikováno v:
Weed Research 32 (1992) 5
Weed Research, 32(5), 391-397
Weed Research, 32(5), 391-397
Summary: Resume: Zusammenfassung The effect of broadcast or band-placed application of fertilizer on the growth of weeds was studied at two locations on low-fertility acid soils in Suriname. Band placement of fertilizers considerably reduced weed gro
Publikováno v:
Weed Research, 31, 153-160
Weed Research 31 (1991)
Weed Research 31 (1991)
Summary: To assess the potential contribution of growing highly competitive crops to control Cyperus esculentus in the Netherlands, the influence of silage maize, hemp, winter barley and silage winter rye on emergence, growth and reproduction of this
Autor:
Miguel A. Altieri, Henk Kloen
Publikováno v:
Crop Protection, 9, 90-96
Crop Protection 9 (1990)
Crop Protection 9 (1990)
The effects of incorporating mustard as a non-crop plant within a broccoli planting was tested for pest regulation. By varying sowing dates of the mustard, a critical period for crop-weed competition was determined, after which time, crop competition
Publikováno v:
Biological Conservation 52 (1990)
Biological Conservation, 52, 49-81
Biological Conservation, 52, 49-81
The vegetation of the embankments of the Zak van Zuid-Beveland were surveyed phytosociologically, the vegetation being assigned to the Lolio-Cynosuretum plantaginetosum mediae, Arrhenatheretum elatioris picridetosum, Arrhenatheretum elatioris alopecu