1. Excavate the top 4-6 ins layer of dirt and fill back up with new topsoil of good quality.5 ~1 D! g7 } q* I$ M* V1 j; ^$ U/ f
2. Reduce the use of chemical fertilizer and use organic one instead.
( _4 O0 ^3 i4 j" U! _" ?# f' ~ 8 S' S( F6 w5 J4 B3 i0 J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。 3 v. e% r9 \- V rBIGWOOOL 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.