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首页> 外文会议>European Grassland Federation Symposium >The root morphology of alfalfa in relation to the position of the roots in soil
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The root morphology of alfalfa in relation to the position of the roots in soil

机译：苜蓿与土壤根源位置相关的根形态

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The goal of this study was to screen the effect of depth in the arable layer on the root morphology of alfalfa. In 2007, the measurement and sampling were realised in the autumn period in an area 330 x 330 mm~2 with two replicates. The alfalfa roots were separated into the following depths: 0-100 mm, 100-200 mm, and 200-300 mm below the root crown. The following parameters were measured for each individual plant and different layer: lateral root number (LRN), taproot diameter (TD), lateral root diameter (LRD), and root weight (W). The results indicated that TD, LRN, and W decreased significantly with an increase in the depth in the soil but no relationship was detected between depth and LRD. Over 50% of the alfalfa root biomass in the arable layer was situated in the top layer 150 mm under the soil surface. These results are preliminary and the research will be continued.
机译：本研究的目标是筛选苜蓿根系形态深度在耕作层中的影响。 2007年，测量和取样在330 x 330mm〜2的秋季期间实现，两个重复。将苜蓿根分离成以下深度：0-100mm，100-200 mm，底冠下方200-300 mm。针对每个植物和不同层测量以下参数：横向根系（LRN），根尖直径（TD），侧根直径（LRD）和根重（W）。结果表明，TD，LRN和W显着随着土壤中的深度增加而显着降低，但在深度和LRD之间没有检测到任何关系。在耕地层中的苜蓿根生物质中超过50％位于土壤表面下的顶层150mm中。这些结果初步，研究将继续进行。

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