Bedfordshire, UK
Shillingford Organics, Devon UK. Photo by Jo Smith, ORC
South Portugal (by João HN Palma, ISA-UL)
Saskatchewan, Canada. Photo by Laura Poppy and Ron Gares
North-Western, Poland. Photo by Robert Borek
June 2011 by Organic Research Center.
Near Bolsena Lake, Italy. Photo by P. Paris (CNR-IBAF)
Limousin, Central France.
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Why combine Melissa officinalis L. with cherry trees?
Melissa officinalis L. (commonly known as lemon balm in English) is used to supply rosmarinic acid to the pharmaceutical sector. Melissa officinalis L., like many medicinal plants, is well adapted to partial shading. Cherry trees are a high value timber tree with good economic return. They generate little shade compared with other trees.
Why combine maize with cherry trees?
Maize is in great demand all over Europe as livestock feed. However, intensive maize production requires large amounts of inputs, including fertilizer and water, which results in low returns and high environmental costs.
Currently, quality timber cherry trees have a high market value due to a shortage of supply.
Facing climate change
Global food production should at least double by the end of this century to meet the needs of the increasing human population. However, crop yield potential has stagnated, and some reduction in the crop yields is expected as consequence of climate change.
Silvo-agriculture can be regarded as an adaptive cultivation system that can help to mitigate the negative effects of climate warming and help meet the challenges arising from the increased frequency of extreme weather events.
Why pollard trees?
Pollarding trees optimises renewable biomass production and facilitates local production of firewood, ramial chipped wood (RCW), lumber and fodder. Harvest occurs over decades, depending on the chosen frequency of pruning and utilization. Many tree varieties can be pollarded to provide a range of products. Pollarded trees have an increased lifespan. As their growth is limited, they better resist wind and drought, and this may be of particular benefit in global warming conditions. Old pollards use compartmentation to ensure living cells are protected from diseases and dead cells in the middle of the trunk. The tree trunks, and even the roots, are also great biodiversity habitats for flora and fauna.
Why should you plan carefully?
The potential benefits from grazing apple orchards with sheep include a reduction in mowing costs and an additional source of grass for the sheep. The sheep can promote nutrient cycling and can benefit from the shelter in winter.
Why graze orchards with sheep?
Orchard grazing can offer financial and environmental benefits. The experience of stakeholders in the AGFORWARD project is that some lowland sheep breeds (e.g. Shropshire) can successfully graze on orchards which have been pruned to a height of 1-2 m without noticeable losses in apple yields. Sheep producers can profit from an additional source of grass in the orchards, and the release of grazed land for hay production. Orchard owners can profit from reduced mowing costs, increased nitrogen cycling and a rent from the sheep owner. There can also be societal benefits in terms of employment and plant biodiversity.
Why graze orchards with sheep?
Why intercropping?
Market-focused farmers manage orange tree (Citrus sinensis) varieties by pollarding and crafting. This procedure can take up to 15 years for the tree to reach maturity and attain maximum fruit yields. In the meantime, farmers can take advantage of the wide and open space created by the pollarding, to produce a variety of vegetables and raise a further income to supplement that earned from the orange trees.
Traditional land use system
Olive (Olea europea) is the most widespread cultivated tree in Greece (Schultz et al. 1987). Olive trees alone, or in orchards, are found in all parts of the country that have a mild Mediterranean climate. The olive tree is considered to be one of the least demanding cultivated trees in terms of soil nutrients. For this reason, it is planted in poor, rocky areas with soils mostly derived from hard limestone. In traditional systems, practically all olive trees came from wild plants which were grafted. Edible olives and olive oil are the main products of olive trees, while secondary products include fodder for animals and firewood.