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Dead grass redux
I don't know very much those issues about maples, but I think the roots
generally develop upwards in asfictics soils where not enough air close to the roots prevent them to absorb mineral elements (the mineral absorptions requires chemical energy produced only if there is enough air close to the roots). In other case the roots go upwards. This phenomenon is very common in plants growing in town streets under pavements. I think if you have enough organic rotting matter on the ground below the tree, the soil mantain more soft and aired and only thin roots will emerge over the soil. Besides you can grow your lawn early before maple leafs are so wide to prevent light reach the soil. In my country garden there is an hedge maple and their branches ad leafs don't prevent clover to grow. Clover give nitrogenum to the maple and let soil water get out through stomes, so that soil is not so wet to cause maple suffer air scarcity. |
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