Sysstem®-Cal, is a calcium and copper foliar fertilizer designed to improve fruit quality and firmness. Soil available calcium does not move easily within plants because it translocates mainly within the tranpirational system – moving generally to the leaves – where it gets bound in cell wall structures. Sysstem- Cal is specifically designed for foliar use to address this issue and supply calcium directly to the fruit. Sysstem-Cal links calcium to a unique trans locating mobility-ion that greatly improves calcium uptake and mobility.

Calcium is a key component of cell wall development; increased calcium levels lead to thicker, firmer cell walls, which improves overall fruit integrity, firmness and shelf life. Sysstem-Cal can be used at all plant growth stages but is particularly effective between pre-bloom and early fruit development. When used at the proper timings, Sysstem-Cal can increase fruit calcium levels and help improve proper nutrient ratios (like N/Ca, K/Ca) that directly influence fruit quality (firmness and storage life) and marketable yield.

Sysstem-Cal is part of Agro-K’s revolutionary Sysstem foliar line. Sysstem products are designed to work together to maximize crop quality. They are compatible with each other and most pesticides, making them easy to integrate into spray programs.

Suggested Uses

Tomatoes, Peppers, Cucumbers

Apply 1 to 4 quarts per acre per application. For fresh pick crops, apply beginning at first bloom and reapply at 10-14 day intervals through the final harvest.

Lettuce, Spinach and Other Leafy Vegetables as well as Broccoli, Cauliflower and Other Brassica Varieties

Apply 1 to 4 quarts per acre per application. Apply the first application 7 days after transplanting, thinning, or at second true leaf stage. Apply two to three subsequent applications at 10 day intervals.

Corn, Beans and Peas

Apply 1 to 4 quarts per acre per application. A first application can be ground applied with starter fertilizers if carefully mixed in a dilute solution (contact Agro-K for more information). Otherwise, apply the first application at the second or third leaf. Apply one to two subsequent applications at 10 to 14 day intervals or as needed to supplement nutritional requirements.

Strawberries

Apply 1 to 4 quarts per acre per application. Apply the first application immediately pre-bloom. Reapply at 7-14 day intervals through the final picking.

Potatoes, Onions and Other Vegetable Root, Bulb or Tuber Crops

Apply 1 to 5 quarts per acre per application. Apply the first application at 10 days pre-hooking. Apply three subsequent applications at 10 to 14 day intervals.

Nut Crops

Apply 1 to 4 quarts per acre per application. Apply first application prebloom. Apply subsequent applications at petal fall and 10-14 days later.

Plums, Peaches, Cherries and Other Stone Fruits

Apply 1 to 4 quarts per acre per application. Apply first application at pink to first bloom. Apply subsequent applications at 10-14 day intervals up to pit hardening.

Apples, Pears and Other Pome Fruits

Apply 1 to 4 quarts per acre per application. Apply first application at pink to first bloom. Apply subsequent applications at petal fall and 10-14 days later.

Citrus and Avocados

Apply 1 to 4 quarts per acre per application. Apply first application prebloom. Apply subsequent applications at 30 day intervals up to harvest or as needed to supplement nutritional requirements.

Grapes

Apply 1 to 4 quarts per acre per application. Apply first application two weeks prior to bloom. Apply subsequent applications at bloom and at shatter.

Blueberries

Apply 1 to 4 quarts per acre per application. Apply first application at first bloom. Apply 2-3 subsequent applications at 10-14 day intervals.

Raspberries, Blackberries and Other Caneberries

Apply 1 to 3 quarts per acre per application. Apply first application prebloom. Apply subsequent applications at 10-14 day intervals throughout the season.