1 (e.g. I > Cl > C > H)  If the first atom of two groups is the same, consider the second atom(s) in the same way as the first. (e.g. -C(CH3)3 > -CH(CH3)2 > -CH2CH3 > -CH3). If this does not assign priority, consider the next atoms until there is a difference.
Fertilize blackberry bushes in the early spring just as they begin to put forth new growth. Use 1 pound of 20-20-20 granular fertilizer for every 25 feet of row, broadcasting it evenly around the base of your shrubs. If you use 10-10-10 fertilizer, apply 2 pounds for every 25 feet of row. Feed blackberry bushes again when they are blooming in midsummer. Do this only if your bushes are not thriving. Apply 1/4 pound of a 34-0-0 fertilizer, also called ammonium nitrate, for every 25 feet of row.
Best Answer: In the spring I give each of my blueberry bushes 1/2 pound of 13-0-13 fertilizer, spread in a 5 foot circle around them. In the fall they get 1/2 pound of the same. Throughout the year they are given used coffee grounds and crushed egg shells. The coffee grounds add acid to the soil and the egg shells add calcium and help control slugs and snails. I also mulch with pine straw; it adds more acid, keeps down weeds and keeps the soil from drying out too quickly. Mine have done well with this feeding schedule.