make own compost pile with vegiw fruit , food scraps.
if by ocean fertilize with that water dilued about 10 part sea water to 100 part fresh water once a week, increase and decrease , experement.
ocean water and sea salt has 92 over minerals to get into siol and plants roots!
alalfa meal , kelp, meal, keep top of soil covered and dont let dry and crack becasue got to keep micro organisms in soil thriving. ... Feed them.
sand, rock dust, all things organic...dont know any books about this
oceans water, sea salt, compost, and compost teas, and rock dust are I beleive great for keeping soil and therefor food highly mineralized