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首页> 外文期刊>Landbauforschung >Improving green-house gas balances of organic farms by the use of straight vegetable oil from mixed cropping as farm own fuel and its competition to food production
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Improving green-house gas balances of organic farms by the use of straight vegetable oil from mixed cropping as farm own fuel and its competition to food production

机译：通过使用混合种植的纯植物油作为农场自用燃料及其对粮食生产的竞争，改善有机农场的温室气体平衡

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Mixed cropping is frequently used in organic farming and recommended worldwide in low external input areas to increase productivity, yield security and product diversity. In trials with different oil crops camelina (false flax, Camelina sativa L), linseed (Linum ustitatissivum L), rape (Brassica napus L), safflower (Carthamus tinctorius L.) or white mustard (Sinapis alba L.) grown together with grain legumes or cereals on German sites the potential of renewable fuel production parallel to food production was evaluated in organic farming. Depending on the crop-combination between 10 to 900 kg/ha vegetable oil could be produced. This could cover the fuel demand of agricultural machinery for 0.1 to 9 ha farmland. The food crops combined with oil plantsin mixed cropping mostly had relative yields higher as 0.5, showing that also yield increases in food production are possible parallel to the production of renewable fuel. As example for an introduction of a non-common oil crop in farm cycles, researchresults on the use of straight vegetable oil as fuel in tractors and of oil-cake as feedstuff for livestock from camelina are summarised. Based on the results the importance for the GHG emissions of organic farms is discussed. When mixed cropping systemswith oil crops and the use of all products are consequently introduced, improvements in the GHG balance of farms can be expected by savings in production and yield stabilisation in mixed cropping as-well as by direct substitution of diesel fuel in agricultural machinery and by substitution of imported feed components for livestock.
机译：混合作物经常用于有机农业，在世界范围内建议在外部输入量较低的地区使用，以提高生产率，产量安全性和产品多样性。在不同油料作物的试验中，与谷类一起种植的茶花（亚麻，山茶L），亚麻子（Linum ustitatissivum L），油菜（甘蓝），红花（Carthamus tinctorius L.）或白芥末（Sinapis alba L.）一起种植。在有机农场中，评估了德国工厂的豆类或谷类食品与粮食生产平行的可再生燃料生产潜力。根据作物的组合，可以生产10至900 kg / ha的植物油。这可以满足0.1到9公顷农田的农业机械燃料需求。混合种植的粮食作物与油料作物的相对单产大多较高，为0.5，这表明与可再生燃料的生产平行，粮食生产的单产也有可能增加。作为在农作物周期中引入非常规油料作物的例子，总结了关于使用纯植物油作为拖拉机燃料以及使用油饼作为来自山茶花的牲畜饲料的研究结果。根据结果​​，讨论了有机农场温室气体排放的重要性。因此，当引入油料作物混合种植系统并使用所有产品时，可以通过混合种植中的生产节省和产量稳定以及通过在农业机械和工业机械中直接替代柴油来预期改善农场的温室气体平衡。通过用进口饲料成分替代牲畜。

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