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首页> 外文期刊>Acta Horticulturae >Apple rootstock reaction to soil compaction.
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Apple rootstock reaction to soil compaction.

机译:苹果砧木对土壤压实的反应。

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摘要

Container-grown apple trees on a range of rootstocks were exposed to different levels of soil compaction created by changing soil bulk density. In a field experiment conducted in Ohio, USA in 1998, with soil bulk densities of 1.0, 1.2 and 1.4 g/cm3,there was no interaction of rootstock and soil compaction for shoot growth of Melrose trees on 9 rootstocks: M.27EMLA, M.9EMLA, M.26EMLA, M.7EMLA, B.9, B.118, G.30, MM.106EMLA and MM.111EMLA. In fact, trees grown in a soil bulk density of 1.2 g/cm3 hada greater dry weight than trees in 1.0 or 1.4 bulk density soil. However in 1999, with soil bulk densities of 1.0 and 1.5 g/cm3, a significant interaction in shoot growth occurred with 6 rootstocks. Shoot length of trees on M.9 EMLA, G.16 and G.30 were less influenced by compacted soil than M.7 EMLA, M.26 EMLA and MM.106 EMLA. A bulk density of 1.5 caused a decrease in dry weight of shoots, leaves and roots of trees on all rootstocks. Trees on M.26 EMLA and MM.106 EMLA were more affected by severe soilcompaction than the other rootstocks. Compacted soil resulted in a decrease in leaf concentration of K and B and an increase in Mg and Mn.
机译:各种砧木上的容器生长的苹果树暴露于通过改变土壤容重而产生的不同水平的土壤压实。 1998年在美国俄亥俄州进行的田间试验中,土壤容重分别为1.0、1.2和1.4 g / cm3,对于9种砧木上的梅尔罗斯树苗的生长,没有砧木和土壤压实的相互作用:M.27EMLA,M .9EMLA,M.26EMLA,M.7EMLA,B.9,B.118,G.30,MM.106EMLA和MM.111EMLA。实际上,土壤堆积密度为1.2 g / cm3的树木的干重要大于1.0或1.4堆积密度土壤中的树木。然而,在1999年,土壤容重为1.0和1.5 g / cm3时,有6种砧木在苗的生长中发生了显着的相互作用。与M.7 EMLA,M.26 EMLA和MM.106 EMLA相比,M.9 EMLA,G.16和G.30上树木的芽长受压实土壤的影响较小。 1.5的堆积密度导致所有砧木上的茎,叶和根的干重减少。与其他砧木相比,M.26 EMLA和MM.106 EMLA上的树木受到严重土壤压实的影响更大。压实的土壤导致钾和硼叶片浓度降低,镁和锰含量增加。

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