Check the listing for details. Demeters Destiny, 1 qt. Condition: New. Listed at 29.48 USD. Many production problems originate with too much nitrogen and potassium and not enough available calcium and phosphate. Calcium is the queen-king of all nutrients, aiding enzymatic action, feeding soil microbes, improving nutrient availability and cell wall integrity, encouraging solid stem growth vs. hollow in a calcium-deficient situation and preventing stem breakage. Calcium promotes smooth, sweet, aromatic produce, and generally leads to healthier, more vigorous growth. * Ship By Date is estimated and handling times may vary.