1. Excavate the top 4-6 ins layer of dirt and fill back up with new topsoil of good quality. & e1 o9 a2 _8 D* r( A2. Reduce the use of chemical fertilizer and use organic one instead.
3# ceramistpalace 0 r: O5 `/ j6 {. V# _0 S6 k+ M
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/ }6 J- t+ J& w8 ^$ x3 {% G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。6 ?% b w" Z/ W" Y' u' L. ~% h
BIGWOOOL 发表于 2010-1-4 23:21
4 D* [; X, ?/ v! l; S0 k& |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.