有機農場用“有機肥料”

有機農場用“有機肥料”，

"Organic farmers can and do use composts of plant and animal materials and uncomposted plant materials are allowed under Federal NOP (National Organic Program) guidelines. Raw manure can be used, but must be applied at least 120 days prior to harvesting most crops."

Raw manure can be used... I always wonder about this.

所有跟帖： 

• 是嗎? 看來是要慎用有機蔬菜了 -吃與活- ♂ (0 bytes) () 11/21/2014 postreply 08:16:16

• at least 120 days prior to harvesting most crops -薛成- ♂ (0 bytes) () 11/21/2014 postreply 08:17:44

• That's a good point -Lily168- ♀ (0 bytes) () 11/21/2014 postreply 08:19:52

• 那麽多數蔬菜生長需要多長時間呢 -吃與活- ♂ (0 bytes) () 11/21/2014 postreply 08:25:59

• 一般美國都用完全發酵的肥料，因為他們有足夠的資源。我不擔心。外國就難說了。 -薛成- ♂ (0 bytes) () 11/21/2014 postreply 08:31:42