28 uppsatser · sida 2 av 2
en litteraturstudie av arternas biologi samt förebyggande och direkta kontrollåtgärder
… a database on their homepage that includes chemical treatments for different weed species. There is also space for preventive and mechanical control methods. This is an undergraduate thesis that reviews these control methods for the most important weeds in Sweden. The species …
… In three of the stands a thin black strip of plastic was used to control weed competition. In these stands both the tree survival and height growth were higher than in the other stands. In these stands plant survival varied between 71 ” 92 %. In the stands without plastic cover …
… not certified according to the standards set by KRAV. To achieve a sufficient weed control program a good rotation of crops are essential. The farm also needs a high level of own produced crop. The requirement for connecting to KRAV is today (2004) that the farm has been run by …
… big differences in establishment costs and some differences in occurrence of weed. Our results show: ” The lowest soil preparation had Direct Drilling, 285 SEK/ha + the cost of sow drilling added. ” The highest soil preparation had Överum conventional, 1310 SEK/ha + the cost of …
en biologisk bekämpningsmetod mot ogräs
… There is also a final discussion of some proposals regarding alternative weed controlling methods. The work was performed using studies of literature, growing trials and consultation with people at different University Departments and companies dealing with plants. The field …
… Master of Science in Forestry suggests spraying with chemicals to control the weed. He’s the only one. He also uses a standard model for establish and manage the area. His method is cheep, it gives a quick feeling of grown up forest, but it has very few early esthetical values …
… activities. This study has not demonstrated that the timing of planting, weed control, irrigation, fungicidal and insecticidal has had impact on the profitability of starch potato cultivation. But it is likely that the timing is nonetheless of great importance. In short, the …
timing och skördeanpassade åtgärder
… activities. This study has not demonstrated that the timing of planting, weed control, irrigation, fungicidal and insecticidal has had impact on the profitability of starch potato cultivation. But it is likely that the timing is nonetheless of great importance. In short, the …
Modellutveckling och känslighetsanalys
… are 12 000 kilometers of railway tracks and 25?30 % of them are treated for weed control every year. The Swedish Transport Administration is currently using the pesticide ”Roundup Bio” to remove weeds on the embankment. To prevent the dispersal of chemicals to sensitive …
Svenska Kraftnät är ett statligt affärsverk vars huvuduppgift är drift och underhåll av det svenska elstamnätet. Bekämpningen av oönskad vegetation är en del i underhållsarbetet i anläggningarna och sker i dagsläget med det kemiska bekämpningsmedlet Roundup. Svenska Kraftnät …
Renkavle har under lång tid varit ett stort problem för lantbrukare i stora delar av norra Europa och har etablerat sig på större arealer även i Sverige. Genom sin bio-logi är renkavle mycket väl anpassad till odling av höstsådd spannmål, speciellt i kombination med reducerad …
… blueberry, heather, crowberry, common hair-grass (Deschampsia flexuosa), fire weed (Epilobium augustifolium) and raspberry. For none of the seven species it was possible to find any statistic significant differences between the different treatments. When fertilized plots was …
The agriculture in Sweden today uses chemical substances to control vermin, weed and diseases. This usage shows through polluted subsoil water and trace elements in the food we eat. There’s a risk that additional symptoms will arise in the future. Our product Sha Jun, developed …
