Ladies and gentlemen, are there any books and websites of microecological agents that can be recommended?

Ladies and gentlemen, are there any books and websites of microecological agents that can be recommended? Let's share and make progress together! -- there are many in the forum-- reply "playboy 5 `3G' ~-Z7d4 E9 _ I am a storyteller or a website. There is only a lot of relevant information in the forum-- please enter my space and have a look. There is an agent in Nanning. I can introduce some information to you. QQ547488118-- replied "General Manager of Marketing + G: QQ, G5E0e" Thank you! I'll go in and have a look-reply "Shandong Livestock 4U!" OS (| $@ + D* T / f* g0w! X3 |% g "$16D [ts] dry spread fermentation bed at 20:01 on 2009-11-23 add the following [/ ts] (V6 hb/ G$ x4? 1w5 c $eBay # P0f: P5K8k (WH if it is a micro-ecological fermentation bed for chicken and pig raising books can be found on (dry spread fermentation bed net)-- "General Manager of Marketing-- reply" dry spread fermentation bed T) S9 [% S1 Ys thank you for recommending! I have time to go back and read it, but now I mainly want to read more books or websites on microecological additives-I'm also looking for them, but they all seem to be old, new things still need to find professional magazines, and there are more forums!