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选用鲁薯 7号和徐薯 1 8为材料 ,研究了土壤通气性对甘薯无机养分吸收、14 C 同化物分配和块根产量的影响。结果表明 :改善土壤的通气性可以增加叶片中钾、钙、锰、硼和锌的含量 ,增加块根中钾和钙的含量 ,减少块根中锰、硼和锌的含量 ,促进14 C 同化物由叶片向块根的运转和分配 ,提高块根中淀粉含量 ,极显著地提高了块根的产量。本文讨论了矿质元素在促进14 C 同化物由叶片向块根运输中的作用
The effects of soil aeration on absorption of inorganic nutrients, distribution of 14 C assimilates and root tuber yield were studied using Luxu 7 and Xushu 18 as materials. The results showed that improving the aeration of soil could increase the content of potassium, calcium, manganese, boron and zinc in leaves, increase the content of potassium and calcium in roots, reduce the content of manganese, boron and zinc in roots, and promote the formation of 14 C Leaf to the root of the operation and distribution of roots to improve starch content, significantly increased the yield of roots. This paper discusses the role of mineral elements in promoting the transport of 14 C assimilates from leaves to roots