28 uppsatser · sida 1 av 2
… and more precipitation in Sweden.As the temperature increases, new weed species are expected to migrate in from more southerlylatitudes, resulting in requests for new techniques for weed control. In addition, we might see agreater number of weed species and higher biomass …
honungsbaserad sårsalva : vid behandling av yt-pyodermi hos hund.
… has been shown to have a positive influ-ence on soil organic matter as well as weed flora, and green manure is an important me-thod of weed control in organic farming in parts of Sweden. However, the release of nu-trients from the green manure varies and can therefore be …
en jämförelse mellan Mälarregionen och Östergötland
… has been shown to have a positive influ-ence on soil organic matter as well as weed flora, and green manure is an important me-thod of weed control in organic farming in parts of Sweden. However, the release of nu-trients from the green manure varies and can therefore be …
… (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 culture in organic …
en studie om herbicidresistens; mekanismer, detektion och åtgärder
… The resistance mechanism is usually a change in the biochemistry of the weed, but in some cases changes in morphology or growth rhythm. The change is caused by random mutations. Two resistance mechanisms are found in black-grass; target site resistance and metabolic …
… year 2010. The organic production needs new and more effective ways to control weeds, and there is the row harrowing coming as a good complement to the conventional weed harrowing. In this experiment is weed harrowing whit different row spaces and row harrowing with a spacing of …
… at the factory. Black nightshades have the last ten years become a more common weed in field grown vegetables in the southern parts of Sweden. This MSc thesis presents an experiment conducted in 2005, aiming at developing a tool for predicting the need for control of black …
weed control in cereal crops
… different crops (oats, spring wheat, winter wheat and barley) using historical weed trial data. Workday probability was estimated using weather data, including temperature, rain, air humidity and wind speed, from four different meteorological stations in Sweden. Ownership and …
biologi och icke-kemisk bekämpning
… has been the object of several new trials, seeking methods for non-chemical weed control. The new trials have mainly confirmed earlier experiences; that the most successful methods of control are springtime ploughing, repeated cutting and competition from a stout crop. Row …
Tussilago farfara, coltsfoot, is a troublesome perennial weed with deep lying rhizome, which can vegetatively generate new plants. The mechanical control of coltsfoot that is used today, "starvation", which consists of several cultivations of the soil, which fragmentises the …
Couch grass (Elymus 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 …
… aim with this thesis was to compare theuse of pesticides and the occurrence of weeds on ten farms in Skåne and ten farms inMälardalen that use different soil tillage systems. The object of the study was also to clarifywhy the farms had chosen their specific soil tillage system …
cultivation techniques and competition aspects for Swedish onion and apple producer
… for use in Swedish apple orchards after harvest. When it comes to onion and weed problems, which has become a huge problem without properly functioning pesticides, the greatest difficulty lies in combating weeds with other techniques. The onion has a very poor competitive …
en litteratursammanställning om såtid, radavstånd och utsädesmängd
… cultivation wider row spacing is an opportunity for developed mechanical weed control, where a lower weed amount can increase the yield. Seed rate should be adapted to the growing location, sowing conditions and date of sowing. Seed rate can be varied relatively much without …
… ended in September the height and biomass was estimated for both rapeseed and weed in each exclosure and on the control plots. From every game field four transects was pointed out one from every cardinal destination (north, east, west and south). The transects was 500 meters …
