Sökresultat:
8 Uppsatser om Harrow - Sida 1 av 1
Jämförelseförsök mellan ogräsharvning och radhackning :
The organic farmland is increasing all the time and the goal is that 15 % of the Swedish farmland will be in organic production in 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 25 cm compared. Then are the weed picked and the weight taken of them. The yield is compared in the 7 different ways of treatment.
The results is not showing any significant differences in yield even when the row spacing is 25 cm instead of 12,5 cm. Even the spring wheat that is a sensitive crop and has bad tillering is doing well in this experiment.
Now with modern technology where the row Harrow is controlled by a camera that making the row Harrow to follow the rows is it the soil coverage of the crop that is the limit for the speed. With wide machinery is the very good coverage even with a row Harrow..
Jordbearbetningsstrategier på hösten inför vårsådd på tyngre lerjordar :
It is important for today?s farmers to minimize the costs for crop establishment, because
of decreased prices and support from the EU. Farmers, who plow in autumn on heavy
clay soil, often do some kind of tillage in autumn to get better soil structure before
spring seeding. This is especially important when growing small seed crop, e.g. sugar
beet and oil plants.
Vilken föryngringsmetod ger bäst resultat på torra och friska marker, höst- eller vårplanering? : en jämförande studie utförd på uppdrag av Stora Enso Skog
Regeneration with scarification and planting is a well known method, but the plants have a tuff period in the beginning. Decease of plants comes from pine weevils, dry weather, browsers, wrong method of scarification and wrong time for the planting. These are some courses why not every planting gets successful.
The purpose with this study is to investigate witch time of planting gives the best result, spring or autumn planting and to give a answer of witch factors are the main course of deceases. The goal is to have the study to decide witch time to plant after final felling.
The choices of plantings were maid from a period of three years. Spring plantings were from year 2005, 2006 and 2007 and autumn plantings were from 2004, 2005, and 2006.The purpose was to compare differences in deceases at the same spring weather.
Hur påverkasogräsuppkomsten av jordbearbetning :
Today it is common to spray against most weeds by using very expensive weed-killers.
The goal for every farmer is to have as low costs as possible for their use of machines and weed-killers.
Therefore it is in everyones interest to find other methods to fight the weeds.
Finding a way to reduce the rise and growth of weeds already at the preparation of the soil would lower the number of laps over the field and also decrease the amount of weed-killing dose.
Tests show that by Harrow in the dark it is possible to reduce the population of weeds with up to 60%, but the normal reduction would be about 20-30%.
To verify the results above we made tests by using two different methods of preparing the soil. We tested ploughing and Harrowing in daylight and during night. Later we checked the number of different weeds in areas prepared in daylight and during night.
By studying the results from the different methods used we found a considerable reduction of some kinds of weeds in areas prepared during night..
Tankar om plöjningsfri odling :
The margin in crop production is more and more less and it forces the producer to check
out how to reduce the cost of establishment of new crop. One way to reduce the cost in
establishment is to begin with plough less farming. It saves money and time compares to
conventional soil preparation with plough and Harrow.
Not all soil types are god for plough less farming and should be continued with
ploughing (mainly light soil), but other soil types working very well with plough free
farming.
If you want to success with plough less farming you have to think in new lanes. One of
the things you have to think about is to not grow too much cereal after cereal. Low
stubble is important when you harvest the crop and also to spread and chop the straw
well.
I have in this work interviewed some farmers and farm advisers in Östergötland to see
which thoughts they have about plough less farming.
Landsbygd i förändring : en jämförelse mellan bouppteckningar från1840-talet och sekelskiftet 1900 på Gotlands södra landsbygd
During the beginning of the 19th century Sweden is effected by the Napoleonic Wars and in the aftermath of the war Sweden looses Finland to Russia. This loss leads to the dismissal of King Gustav IV Adolf and the introduction of the Bernadotte dynasty on the Swedish throne. Over the century the industrialization plays a big part in the progress of Sweden. The growth of the industries leads to developments in the areas of agriculture. With this essay I would like to examine if the people on the countryside of Gotland keep the same pace as the people on the mainland in their introduction of new things.
Slitundersökning för jordbearbetning och sådd :
In this study we try to focus on the costs for wear parts on different type of soil tillage machines and at Väderstad Rapid drilling machine. We have studied some of the leading types of cultivators and disk Harrows. Among the cultivators we have investigated Väderstad Cultus, Dalbo Dinkomax, Horsch Tiger and Terrano. At disk Harrow we have looked at Amazone Catros and Väderstad Carrier.
We have made more detailed study on costs for wear parts, working depth, driving speed and diesel consumption.
Naturlig föryngring efter markberedning med harv eller Bracke Planter i Småland
Studiens syfte var att jämföra Bracke Planter (BP) med harvning med avseende på andelen markberedd areal, uppkomsten av naturligt föryngrade stammar av olika trädslag per ha och huvudplantors medelhöjd tre år efter plantering. Jämförelserna mellan de två metoderna gjordes gruppvis med lika antal inventerade trakter för respektive metod, inventeringen gjordes i Småland under augusti månad 2012. För att fastställa andelen markberedd areal mättes arean på markberedningshögar och harvspår på årsfärska markberedningar (6 trakter). Förekomsten av naturlig föryngring och höjd på huvudstammar (ca 550 mätta plantor/metod) registrerades för totalt 16 trakter. Andelen markberedd areal var signifikant högre för harv än för BP, ca 33 % jämfört med 22 %.