1. Excavate the top 4-6 ins layer of dirt and fill back up with new topsoil of good quality. . W) a5 k+ M/ ?8 @! v1 D. p# M H2. Reduce the use of chemical fertilizer and use organic one instead.
# v J9 C0 U4 _( `% z }; O. N( n : `; D# ?# O4 \, Z% C; z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。 . d+ Y" o; e" D1 i, P d$ i+ 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.