189 uppsatser · sida 1 av 13
1. Kvickrotens reaktion på myllningsdjup, kvävemängd och kväveplacering i konkurrens med gröda. 2. Reducerad glyfosatanvändning på trädad åkermark :
… in competition with a crop In this trial it was investigated how couch grass (Elymus repens) changes its ability to compete in stands of wheat and barley with different burial depth and different amounts and placement of nitrogen. More knowledge in this area can be valuable in …
… fiber with low digestibility. To compliment this quality in an effective way a grass silage low in protein and much digestible fiber is needed. The aim of the study was to investigate the effects of adjusting the crude-protein concentration and fiber quality of the silage when …
betydelsen av igenväxningsgrad och tid sedan igenväxning började
Continuously grazed grasslands have remarkably high plant species diversity. In Sweden this type of habitat has declined for the last two centuries. Changed land use has caused habitat fragmentation and loss of habitat quality. This has caused a great number of plant species to …
en studie om lantbrukarnas alternativkostnader vid odling av rörflen
… of their production. Because of the climate in northern Sweden, reed canary grass is known to be the most suitable energy crop in Jämtland. The purpose of this study is to find out the opportunity cost of the farmland in Jämtland when cropping reed canary grass. The study is …
Gapet mellan program och mötet mellan projektering och programmering
… vara möjligt då fler aktörer inkorporerar öppna fil-format. Programvaran Grasshopper? utvärderas och förespråkas som ett verktyg för att skapa algoritmer som kan manipulera data mellan program. Den deskriptiva delen av arbetet resulterar i ett fackmässigt beskrivet …
Inverkan på ensilagets torkningförlopp, spill och smörsyratillväxt
… %. To make this as fast as possible, there is made a machine which pick up the grass with an pick-up. It turn the grass over and put it behind the machine (figure 2 and 4). There are few tests to prove the efficiency of this machine. There are also no results about crop loses or …
… the report limited me to the crops hemp, whole crop (triticale), reed canary grass, elephant grass and jerusalem artichoke. I have through a documentary research checked the crops, cultivabillity in the south of Sweden, and how they should fit, in the Scanian crop sequence. Hemp …
relations between enteric production and production from faeces and urine
… emission of methane. Also diets with a high content of starch, such as alfalfa-grass, have a methane-decreasing. It is profitable to reduce enteric methane formation since that form of methane is unavoidably lost. Methane emissions from manure, on the other hand, are possible to …
Grasslands which have been actively managed for a long time and which in modern times have not been subject to cultivation such as fertilization are called semi-natural grasslands. These rare and species-rich areas hold an ecological, biological and historical value and if the …
an economic evaluation for dairy farmers
… heavy machinery may affect crop growth negatively, reducing crop yields. If grass-clover leys are subject to heavy field traffic the botanic composition might be altered, providing a lower clover content in the forage. Clover as a silage feed is rich in protein providing good …
en studie om herbicidresistens; mekanismer, detektion och åtgärder
… is caused by random mutations. Two resistance mechanisms are found in black-grass; target site resistance and metabolic resistance.Black-grass is a tufty, winter annual grass weed, which is mainly found in milder climates. Black-grass is a big problem in Southern Europe. In …
Grassland is a great part of Swedish agriculture and there is a demand of what the grassland yield is in practice. To be able to control the economic of the milkproduction it is important for the farmer to know how big quantities of pasture there is to use during the year.The …
… provide a grazing management strategy that gives a high utilisation of grazed grass in milk production in the north of Scandinavia. To do this, a grazing experiment was planed and performed during the summer 2005. Simulations in the DSS were run to get a suggestion of how the …
… at Röbäcksdalen. In experiment I, the cows were fed three different silages; grass silage, grass silage and field bean/spring wheat whole-crop silage (70 % respective 30 % on a dry matter basis) and grass silage and field bean/spring wheat whole-crop silage (30/70) in a change …
… species are threatened. Many butterflies are dependent on managed semi-natural grasslands because of their richness in nectar sources and host plants for the butterfly larva. Swedish pastures are mostly managed through grazing. The number of cattle in Sweden have been decreasing …
