Possibility of Sawdust Use as Hot Bed Medium in Asparagus Rootstock Forcing Culture

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  • アスパラガス伏せ込み促成栽培における温床培地としてのおが屑利用の可能性
  • アスパラガス フセ コミ ソクセイ サイバイ ニ オケル オンショウバイチ ト シテ ノ オ ガ クズ リヨウ ノ カノウセイ

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Abstract

In order to improve the system of asparagus （Asparagus officinalis L.） rootstock planting in forcing culture, sawdust was tested as a light substrate medium for a hot culture bed. The spear yield in a sawdust plot （in which only sawdust was used as the hot bed medium） tended to be lower than that of a conventional plot using only soil. A combination plot using sawdust and soil （in which sawdust and soil were used as the medium under and over the rhizomes of the rootstock, respectively） showed a similar yield to that of the conventional plot using only soil, and also shortened the required time to remove the medium and rootstocks from hot bed after forcing cultivation. Therefore, the combined medium of sawdust and soil for the hot culture bed is thought to lead to a labor-saving effect on farm work for removing the hot bed without yield reduction．

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