Q.Suggestion for your resources
I think you have some wrong resources for bat dung! You should check your post. the N: P: K ratio of bat dung may be 3: 10: 1, not 10: 3: 1! i think it might be typing error, but you describe clearly as ” nitrogen 10 percent” just like that! Whatever, I’m really interested in bat dung for the use of fertilizer. Anyway thank you for your information.
Not all guano is created equal. There are differences in bat poo and the NPK percentages, depending on the source. Some is high in N (9 or 10%) and some is higher in P with a lower N level like the one you are familiar with.
Products will often be described as 'high nitrogen guano' or 'high phosphorus guano'. I make my own complete organic fertilizer and seek out high N quano for the fast release N component, along with feather meal for the slow release N.