1. Excavate the top 4-6 ins layer of dirt and fill back up with new topsoil of good quality. $ z0 ~5 e+ U9 \/ V% w3 N2. Reduce the use of chemical fertilizer and use organic one instead.
3# ceramistpalace 5 D% ]+ I7 c, O) O% Y* `$ y6 o, T, S) S$ r# t1 t3 w. M5 ?
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可是我已经铺上了大概3IN 的COMPOST 土,要挖起来就费劲了。不过还要谢谢您的回复。* m) J8 @7 M' D
BIGWOOOL 发表于 2010-1-4 23:21
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I should tell a bobcat is required if you wanna do the whole front/back yard OR just spot-excavation (dig a bigger and deeper than normal hole, dump the old dirt and back fill w/ good topsoil when you want to plant a new tree) if you gonna do the job yourself.