1. Excavate the top 4-6 ins layer of dirt and fill back up with new topsoil of good quality. D/ F+ S ^. J! ]8 L5 B5 m2. Reduce the use of chemical fertilizer and use organic one instead.
3# ceramistpalace ) u/ T3 e3 s* u3 N) W. H # M0 ?# P4 P# W" k* T9 t3 @, x; c( V0 ^
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。5 ^" o' P& l% X t; ^
BIGWOOOL 发表于 2010-1-4 23:21
( ^% t' j/ N. t0 A1 M& HI 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.