11. Use a weak solution of a water-soluble fertilizer. 12. In July 2007, in an article published in " weak solution to the game of checkers. 13. One then applies some calculus estimates to demonstrate that the weak solution is in fact sufficiently regular. 14. Spray a weak solution of soluble fertilizer directly on the leaves to give tired plants a boost. 15. The blue line is the weak solution . 16. A weak solution of household bleach ( 10 % bleach-90 % water ) also kills the odor-causing bacteria. 17. This seems a very weak solution . 18. Canning fertilizes his plants with a weak solution when they are blooming or just before they go dormant. 19. Both are treatable, if not curable, with a copper sulfate spray or a weak solution of hydrogen peroxide. 20. Why do you suggest a weak solution ? ( talk ) 06 : 16, 7 January 2007 ( UTC)