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293 Uppsatser om Crop rotation - Sida 19 av 20

Bosättning, agrarkris och fäbodväsende : vegetations- och markanvändningshistoria i Läde, Dalarna

By using pollen analysis, 14C-dating and historical sources, I studied the history of vegetation and land use at an abandoned forest settlement near the Lade summer farms in the parish of Mora, Dalama. The aim of this paper is to investigate the agricultural establishment and development, the effects of this on forest vegetation, and the origin and development of summer farming. The analysis of pollen in a peat core revealed that a settlement was established at Lade around 1000 AD. Cereal cultivation, hay-making on the mire and extensive forest grazing were intro-duced as a complete agricultural system. Pollen analysis and the presence of ancient fields suggests that cultivation took place on permanent fields. Barley was the main crop, but rye and hops/hemp were also grown at the settlement.

Driving forces of land use : underlying factors in peri-urban land use

Swedish agriculture faces future challenges regarding food production and land use. Increased competition for agricultural land creates complex situations, where conflicts may arise when productive crop land is in demand not only for food production but also energy- and fodder production. On top of that there is an obvious conflict of goals between agricultural production and non-agricultural exploitation of agricultural land. In several emerging economic regions it is noticeable how agricultural land is being expropriated for development of urban settlement and infrastructure, carrying potentially significant long-term effects. During the last decade the exploitation of agricultural land in activities other than food production has increased in Sweden and is expected to continue in the same manor. Approximately 700 hectare of land in Sweden is diverted from food production, annually, and in 2013, the Uppsala Municipality showed the greatest change in land use of all municipalities (SCB, 2013).

Going-Concern utlåtande : - en studie av svenska konkursdrabbade publika aktiebolag

För omvärlden kom Enrons krasch som en chock men det fanns de som visste vad som pågick inom bolaget. Bland annat var ansvarig revisor införstådd med de finansiella svårigheterna men valde ändå att inte påpeka detta i revisionsberättelsen. Flera studier indikerar att detta är fallet även för andra bolag då resultaten visade på en liten andel going-concern utlåtanden trots hotande konkurs. Det här väcker tankar om revisorns utlåtande verkligen ska ses som en garanti. Enron-skandalen väckte även frågor kring revisorns oberoende då det framkom att samma revisor reviderat bolaget i flera år.

Effects of biogas residues on respiration and denitrification in arable soil : evaluation of methods, microbial activity and agronomic implications

Agricultural soils constitute the base in human food production and soil content of organic matter and plant nutrients together with soil microbial activity are all important parameters for high crop yield of good quality. These parameters are dependant on proper fertilization.Anaerobic digestion of organic wastes for biogas production generates a liquid residue called biogas residue (BR). It contains organic material and plant nutrients which makes ita potential fertilizer for arable cropping. However, it also contains heavy metals and toxic organic compounds and it is therefore in need of evaluation before usage.Microbial tests were performed aiming to evaluate the agronomic traits of four different BR and to find a viable procedure for evaluating slurry fertilizers. Two experiments where soil respiration and soil potential denitrification activity (PDA) was measured at fertilizer addition were performed.

Livet mellan husen : ett utvecklingsförslag för Disagården

The open air museum of Disagården is situated in the Old Uppsala parish, Uppsala municipality, are projected to portray a double row village, before the land enclosure, on the Uppsala plain during the 1860s and 1870s. Disagården operates under the County Museum of Uppland and serves as an exhibit of Uppland's farming culture during the late 19th century. However, an open-air museum is a complex institution where many interests are linked together. Disagården aims to simultaneously portray an historical environment while offering broad public appeal. The Disagården open air museum was inaugurated in 1931 and consists of relocated buildings that together form three farm complexes "Gränbygården", "Skuttungegården" and "Bärbygården". The thesis explores how the close surroundings of a typical farm in Uppland looked during the 1860s and 1870s. This historical depiction has then been applied to Disagården in a development suggestion creating a foundation from which Disagården can structure the close cultivation of the different farms. The basis of the development program has primarily been compiled through archival and literary studies but also through on-site visits and interviews. How did the concept of open air museums start and what were the ideas behind the concept? Which external influences affected the situating of cultivations and buildings? Which crops and species were present on the farms in Uppland during the specified time period? What was the relation of the different structures to each other? Which organizations had influences on the farmer's household of the Uppland plain? The thesis attempts to clarify the answers to these questions. The influences affecting on the farmer's household in Uppland were probably numerous.

Chemical and sensory analyses of juice, cider and vinegar produced from different apple cultivars

The interest for locally produced food is increasing due to consumer concern about the environment, distrust of industrial foods and a demand for high quality products. Apple is the predominant fruit crop in Sweden, and by processing apples into cider and vinegar, these products could significantly contribute to the development of the market of local foods.In this study different yeast types and different bacterial cultures were evaluated for their suitability in cider and vinegar production from cloudy apple juice. Ten apple cultivars (Aroma, Baldwin, Belle de Boskoop, Bramley, Cortland, Gravensteiner, Ingrid-Marie, Jonathan, Rubinola and Spartan) were also evaluated for their suitability for production of juice, cider and vinegar. Chemical analyses including total soluble solids, titratable acidity and total phenols were performed on the products along with sensorial evaluation by taste panels.The yeast strains were shown to have an effect on fermentation rate and the resulting content of total phenols in ciders fermented from cloudy apple juice. Dry commercial starter strains gave a higher appreciated cider compared to cider that was spontaneously fermented, and the ale yeast Safale S-04 was concluded to be the most suited for fermentation of cloudy apple juice.For vinegar production, the bacterial culture had an effect on TSS, but not on any other chemical or taste characteristics.

Dokumentation av ensilering med fokus på clostridiesporer i mjölk :

To produce milk of good standard the feed for the animals kept for milk production is an important part in the work of quality. This makes it important to feed them with good forage, especially when feeding with silage. The process of making silage is very complex and requires a careful handling to be successful. The fundamental idea is to create an anaerobic environment in the herbage to favour the desirable micro-organisms, in this case the lactic acid bacteria. This environment is created by careful handlings were the importance is to pack the crop well and cover it as soon as possible to exclude oxygen.

Magnesium chloride in dry cow silage to prevent hypocalcaemia

Milk fever, or parturient paresis, is the second most common disease in Swedish dairy cows. The disorder is associated with the onset of lactation when some cows are unable to meet the metabolic demands of calcium to support milk production and therefore develop a state of hypocalcaemia. Clinical hypocalcaemia (milk fever) may lead to coma and death in severe cases but subclinical hypocalcaemia has also been shown to have negative effects on e.g. feed intake and production and to increase the susceptibility of the cow to develop secondary diseases. The nutritional strategy applied precalving is of great importance in preventing milk fever and e.g.

Willingness to pay for improved maize seeds among smallholder farmers : a study of the input factor market in Kenya

Kenya is considered to be a developing country. This means that basic needs such as nutrition are not met for an extended period of time (www, Sida 1, 2012). Approximately half of the population is living under the poverty line (www, CIA 1, 2012). Agriculture is the largest sector in the country, employing 75% of the population. These are thereby directly dependent on the sufficiency of outputs received.

Effektiv och kontrollerad materialförsörjning i fordonsindustrin: En fallstudie av Scanias CKD-verksamhet

Den ökande konkurrensen inom fordonsindustrin har tvingat företag att öka flexibiliteten samt att använda resurser och information mer effektivt. Fordonsindustrin är förknippad med linjetillverkning och det är vanligt att modula system används för att hantera djupa produktsortiment. CKD-verksamheter hanterar komponenter och moduler som levereras till internationella kunder där de monteras ihop till slutprodukter. CKD-verksamheter är i behov av likadana komponenter och moduler som tillverkningslinjerna och detta leder till att komplexa materialflöden uppstår. Studien har genomförts på Scania i Södertälje som bland annat tillverkar bussar och lastbilar.

Ett Gestaltningsförslag till en Miljövänlig Trädgård

SammanfattningDet självständiga arbetet gestaltar en trädgård i området Kobjer, nordväst om centrum i Lund.Huset som ligger på tomten, Villa Trift 3.0, är ritad efter en ekologisk byggnadsdesign och skafungera som en miljöanpassad bostad. Som huvudfokus i byggnadens uppförande finner viresurshållning, kretslopptänkande, sunda levnadsmiljöer samt en anpassning efter platsensförutsättningar. Trädgården är tänkt att gå i samma anda för att skapa en helhet tillsammans medbostaden. Målet med arbetet har varit att ta reda på hur vi kan gestalta trädgårdar uteftermiljöpåverkan, estetik och önskemål från beställaren.En litteraturstudie inleder arbetet för att få klarhet i vad en miljövänlig trädgård innebär. Denbörjar med beskrivandet av vårt förhållande till de levande processerna som finns i jorden.

Lantbrukarens inställning till skuldsättning och val av kreditinstitut : en fallstudie av expansiva lantbruksföretag

The agricultural sector is characterized by larger crop farms and more extensive livestockproduction. The efficiency improvement is partly a result from a stronger competition in theglobal market. The agricultural products need to be produced at a lower cost than competitorsin order to survive as a farmer. The solution is larger firms that benefit from economies ofscale. This brings large investments that create a greater need for leverage and closer relationto the credit agency.

Ley management : a means to improve forage quality and production

Higher demands of competitiveness and efficiency have led to increasing sizes of farms, with more land, more capital and more comprehensive logistics. The aim is to gain benefits of scale economies that reduce the production cost per unit. However, a greater extent of the business exposes the farm of increased risk where small deviations rapidly can erase the benefits. A modern dairy farm thus put high demands on the farmer?s ability to coordinate, plan and manage the forage production through the whole process until storage to obtain silage of the desired quality and quantity at the right price. The objective of this study was to design a simple model, i.e.

Optimerad höstveteetablering : en litteratursammanställning om såtid, radavstånd och utsädesmängd

This bachelor thesis is intended to gather the knowledge and experimental data on the winter wheat crop production relevant for Swedish conditions, with focus on sowing time, row spacing and seed rate. This essay is a literature study with a minor component based on interviews with farmers producing winter wheat. The work is divided into a background part where basic knowledge of winter wheat physiology, development and environment interactions are described and one part where results of field trials studies are presented. Optimal date of sowing winter wheat depends on annual weather variations. Because it is difficult to forecast the weather the choice of sowing date should be based on weather statistics, production experience and previous results depending on sowing date.

Produktionsparametrar för produktionsplanering vid Wallmarks Såg AB

Detta examensarbete var att samla in data från såglinjen på Wallmarks Såg i Kroksjön. Datat som samlades in skulle föras in i ett program som heter TimberOpt. Programmet används vid ett flertal sågverk i Sverige, ett av dem är Martinsons Trä AB. Eftersom att Wallmarks Såg ingår i samma koncern är tanken att TimberOpt i framtiden ska användas även där. Visionen är att inom koncernen ska de med programmets hjälp kunna såga de olika produkterna vid rätt sågverk ur en ekonomisk synpunkt.

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