10 uppsatser
en biologisk bekämpningsmetod mot ogräs
… operations at the station. Such unwanted vegetation is controlled using herbicides and mechanical measures. Since the use of herbicides implies environmental hazards, there is a need to find alternative ways of fighting the unwanted vegetation. Investigation into suitable plants …
en studie om herbicidresistens; mekanismer, detektion och åtgärder
… frequency of the number of shoots over 1 cm and a dry matter test. The herbicides are; fenoxaprop-P (in the herbicide Event Super), cycloxydim (Focus Ultra), sulfometuron (Oust) and pendimethalin (Stomp).The result matched with the expected resistance level for some of the …
Modellutveckling och känslighetsanalys
… model. The transport model for imazapyr shows a good estimation of the mass of herbicides in the embankment compared to measurements. There is also a good estimation in the groundwater even if the concentration at the beginning of the simulation period is underestimated. The …
en konventionellt och en ekologiskt odlad
Den biologiska mångfalden är viktig inom lantbruket. Jordbrukslandskapets mångfald är vacker för människan att se på och spännande och rogivande att vistas i. Mångfalden innehåller även en genbank som kan bli mycket etydelsefull i framtiden. Dessutom innebär oftast en rik …
1. Kvickrotens reaktion på myllningsdjup, kvävemängd och kväveplacering i konkurrens med gröda. 2. Reducerad glyfosatanvändning på trädad åkermark :
… knowledge in this area can be valuable in the attempt to decrease the use of herbicides and still keep the weeds under control. The trial was carried out in the summer of 2004 as an outdoor pot experiment. The pots contained 15 litres of soil with a surface of 0,06 m2. Couch …
… patches of bare ground (skylark plots). Within conventional farming, herbicides can be used in case a weed problem arises due to implementation of these skylark plots, whereas this is not allowed in organic farming. This study examined the effects of skylark plots on the weed …
… industry can be both chemical and biological. They are used for weeds (herbicides), insects (insecticides), and fungi (fungicides) and as growth retarders.Many horticulture workers get in touch with plants, treated with PPPs and many of these don’t use any protective …
… shows that a well-establishedfestulolium or tall fescue has little need of herbicides apart from the year ofestablishment. Results from the survey show that there is little or no attack of diseasesand pests in the festulolium and tall fescue in Sweden. Growth regulation gives …
flygbesprutning med herbicider i Arjeplog 1953-1978
Attityden gentemot lövträd och lövskog i norra Sverige började förändras i mitten av 1900-talet. Tidigare var lövträden en resurs inom det agrara samhället, men genom det industriella skogsbrukets utveckling började man alltmer betrakta lövträden som ett problem. Lövträden gav …
… repens (L.) Gould) is a severe weed in Sweden, and since both the use of herbicides and cultivation should be decreased, it will become increasingly problematic to control couch. The present work is meant to, by literature studies and an experiment, give some answers to the …
