1. Excavate the top 4-6 ins layer of dirt and fill back up with new topsoil of good quality. % X3 u- [2 T* v4 p: `0 D/ K# V2. Reduce the use of chemical fertilizer and use organic one instead.
3# ceramistpalace 3 Z4 ]$ K: \! H, n ! z5 w) E, K& I/ r" W& h& O% V j) e4 f3 @0 R
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。 7 m" b, d4 }& y0 B" pBIGWOOOL 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.