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首页> 外文会议>General Meeting of The European Grassland Federation >Herbage legumes enhance soil fertility in crop rotation
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Herbage legumes enhance soil fertility in crop rotation

机译：牧草豆类提高了作物旋转中的土壤肥力

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Herbage legumes are cultivated for various purposes: forage and raw material production for bioenergy or green manuring. Soil fertility improvement is a key objective; however, its extent depends on how the herbage is managed. A field trial was conducted with six herbage legume species to determine their biomass production, distribution and chemical composition. Red clover yielded the most biomass (14.9 tha~(-1)) with spring growth, regrowth and roots containing 322 kg N, 6,474 kg C, 42 kg P and 279kg K ha~(-1) by the end of second growing season. Alsike clover attained similar yields. Of the common green manure crops, white sweet clover returned significantly more C (108.8%) and K (148.3%) than bigleaf lupine to the soil. Of the annuals, berseem clover had biomass (7.59 tha~(-1)), N (161 kg ha~(-1)) and C (3,336 kg ha~(-1)) production in the seeding year that was half that of red clover. Lupine is distinguished by its jbiomass allocation to roots and stubble (52%). In other species, the plants' aboveground biomass (spring land regrowth) yielded 74.9-91.9% of the biomass. In pursuit of soil fertility improvement, red clover is a suitable pre-crop for spring cereals and its entire biomass should be ploughed in.
机译：为各种目的培养牧草豆类：生物能源或绿色皱纹的饲料和原料生产。土壤肥力改善是一个关键目标;但是，它的程度取决于牧草的管理方式。用六种牧草豆类物种进行田间试验，以确定其生物质生产，分布和化学成分。红三叶草产生了最多的生物量（14.9〜（-1）），春季生长，再生和含有322kg n，6,474kg c，42kg p和279kg K ha〜（-1）的根部到第二个生长季节。 Alsike Clover达到了类似的产量。在普通的绿色粪便作物中，白甜三叶草比在土壤中比Bigleaf Lupine恢复显着更多的C（108.8％）和K（148.3％）。每年的年龄，麻木三叶草具有生物量（7.59〜（-1）），n（161 kg ha〜（-1））和c（3,336千克Ha〜（-1））在播种年份的一半产生红三叶草。羽扇豆以其JBIOMASS分配来区分为根和茬（52％）。在其他物种中，植物的地上生物量（春天土地再生）产生了74.9-91.9％的生物质。为了追求土壤肥力改善，红三叶草是春季谷物的合适预造成，其整个生物质应耕种。

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