Encontrados 13 documentos, a visualizar página 1 de 2

Celtic pig production in chestnut extensive systems in Galicia

Tree growth in a silvopastoral system established in acid soils with Pinus radi...

Poster ; In Galicia (northwestern Spain), the soils tend to be acidic mainly due to the region’s humid climate, the prevalence of subtractive systems, frequent fires and, often, acidic parent material which can limit the tree growth and the pasture production in the silvopastoral systems. Therefore, it is advisable to carry out management techniques and fertilisation to improve soil fertility as well as the ...

Pasture production and quality in silvopastoral systems established with pine a...

Poster ; In silvopastoral systems grazing animals coexist with tree production. In these systems there is a great competition between tree and herbaceous plants for light, water and soil nutrients, which affect herbage forage production and quality. The aim of this study was to evaluate the herbage forage production and quality (protein, calcium and phosphorus levels) under Pinus radiata D. Don (pine) and Betu...

Juglans growth under ploughing and Vicia villosa sowing understory management

Poster ; Inorganic fertilization has a clear impact on farm economy and on carbon footprint. Input reduction of mineral fertilizers will reduce the impact of this activity on GHG emissions as fertilizers produced in the farms should not be transported. This paper aims at reducing the inputs of nitrogen in a plantation of Juglans hybrid carried out in 2004. The experiment started in 2010 when six-year old trees...

Calibration of the parameters of Yield-SAFE model in silvopastoral systems unde...

Poster ; The establishment of silvopastoral systems in which trees, animals and pasture are integrated within the same area is promoted by the EU (Council Regulation 1698/2005 and 1305/2013) because these systems diversify and sustain production with increased social, economic and environmental benefits for land users at several levels. However, the environmental and economic benefits of silvopastoral systems ...

Analysis of a silvopastoral system with animals of the autochtonous swine breed...

Poster ; Pig traditional production systems in Galicia (NW Spain) are based on seasonal resources us like chestnut and pastures. The Breeders' Association of the autochthonous Celtic breed of pigs (ASOPORCEL) has developed a novel system within the traditional Galicia grazed forest areas in order to preserve landscape quality and biologic diversity, minimizing therefore the environmental impact of pig producti...

Micronutrient levels in pastures established in the north-east of Portugal

In this study we evaluate the effects of six types of fertilization: no fertilizer, lime, manure, lime + phosphorus, lime + phosphorus + boron and manure + inorganic fertilizer; and two types of pasture: spontaneous vegetation and sown pasture, on soil pH and micronutrient concentrations in herbage of pastures established in the NE of Portugal. The results showed that there were higher levels of Cu in the ferti...

Afforestation of agricultural land with Pinus radiata D. don and Betula alba L....

Afforestation of abandoned agricultural lands has been the main change in land use over the past decade in Europe. However, the impact of tree species and understorey management on production and plant diversity over the medium- and long-term has not been thoroughly studied. This paper aims to evaluate the effects of an afforestation of Pinus radiata D. Don and Betula alba L. on soil pH, understorey production ...

Past, present, and future of agroforestry systems in Europe in agroforestry: th...

Many traditional land-use systems in Europe involved agroforestry in the pre-industrial era, but, over the years, increased mechanization led to the development of increasingly specialized crop, animal and wood production systems. As a consequence, the area under agroforestry declined in many regions of Europe, and agroforestry systems became confined to situations where understorey primary production is restri...

Fertilização de pastagens de sequeiro em modo de produção biológico

O sistema agro-pecuário é o sistema de agricultura dominante nas regiões de montanha do nordeste de Portugal entre os 400 e 1200 m de altitude. O funcionamento deste sistema reside tradicionalmente na produção cerealífera e na produção animal, essencialmente bovinos de raças autótones. Contudo, a descida dos preços dos cereais na última década e o aumento dos preços dos fatores de produção, tem levado a uma dim...