If you are interested in learning more about Straw Bale Gardening there is a book titled "Straw Bale Gardening" by Joel Karsten, Cool Springs Press, Minneapolis, MN, 2013. Cost is about $20 - less on Amazon. It has suggested crops and further detail.
nDAYS 1 – 3: WATER THE BALES AND KEEP DAMP
nDAYS 4 – 6: SPRINKLE ½ CUP AMMONIUM SULFATE OR NITRATE (ORGANIC – BLOOD MEAL, FISH EMULSION) PER DAY AND WATER IT WELL INTO THE BALES
nDAYS 7 – 9: CUT BACK TO ¼ CUP OF FERTILIZER PER BALES PER DAY AND CONTINUE TO WATER IT IN WELL
nDAY 10: NO MORE FERTILIZER BUT WATER THE BALE
nDAY 11: STICK YOUR HAND INTO THE BALE – IF COOLED DOWN TO LESS THEN BODY HEAT, YOU MAY SAFELY BEGIN PLANTING. IF STILL HOT, WATER AND CHECK DAILY
Link to PowerPoint