For Organic I like
Peruvian Seabird Guano.. 12-11-2 x 0-11-0
Kelp
Azomite
Potassium Sulfate 0-0-52
Calcitic/Dolimitic Lime
Use 2 parts of Calcitic Lime to 1 Part Dolomitic
For Chemical... I also combine some organic
20-20-20, and Potassium Sulfate. 0-0-52
Azomite
Calcitic/Dolomitic Lime
Use 2 parts of Calcitic Lime to 1 Part Dolomitic
Calcitic works faster to adjust PH, and supplies Calcium
Dolomite is slower acting, and supplies Magnesium