Sysstem Series Phosphites

Agro-K’s Sysstem Series line of foliar phosphites are leading the industry in delivering key essential nutrients in a readily available, mobile form for improving crop production, quality and plant health.

Sysstem Series products leverage the unique properties of phosphites to rapidly penetrate plant tissue, move throught the plants vascular system, and stimulate beneficial plant responses. That makes the phosphite ion the perfect vehicle to deliver critical nutrients like Calcium, Zinc, Magnesium, Manganese, and Potassium for rapid uptake and utilization by plants for maximum effect.

Managing your spray programs is easy using Sysstem products, because they can be used on all crops and in combination with a wide range of other plant care products, making them one of the most effective and flexible nutrient formulations available in the market today. Sysstem products can enhance the penetrating properties when combined with other systemic products, improve the tank mix stability of many crop protectants that favor low pH spray solutions, and bolster the performance of some widely used herbicides and plant growth regulators.

Download the Sysstem Series Phosphites Brochure

Sysstem-Advance 5-0-0®

Sysstem-Advance® is a foliar fertilizer combining nitrogen, sulfur, zinc, manganese, boron and moly in a phosphite form. Sysstem-Advance is designed for use on a variety of row crops to meet peak nutrient demand timing for micronutrients between V-4 and R1. Meeting peak nutrient demand as it begins is critical to maintaining overall plant health, proper [...]

Sysstem-Pecan®

Sysstem®-Pecan is a foliar fertilizer combining zinc and nickel phosphite. Sysstem®-Pecan is designed for early season use in pecans and other crops requiring zinc and nickel to meet peak nutrient demand timing for zinc and nickel. Proper nutrient balance is critical for maintaining overall plant health, to support proper physiological development, and for maximizing yield. [...]

Sysstem-Ready®

Sysstem-Ready™ is a foliar fertility combining zinc and manganese phosphite. SysstemReady™ is designed for early season use in a wide variety of row crops to meet peak nutrient demand timing for zinc and manganese. Proper nutrient balance is critical to maintaining overall plant health, proper physiologically development and maximizing yield. Applying Sysstem-Ready™ early season on [...]

Sysstem-SeaCal®

Sysstem-SeaCal, combines two powerful foliar materials, Sysstem-Cal® and Symspray® into one convenient package. Agro-K’s calcium phosphite fertilizer, Sysstem-Cal, is designed to improve fruit quality and firmness leading to higher packouts. Sysstem-SeaCal also contains Agro-K's nutrient seaweed solution. Combined into one package these two foliar materials can be instrumental in helping growers maximize fruit quality, yield [...]

Sysstem®-CAL

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 [...]

Sysstem®-K

Sysstem-K is a foliar fertility combining potassium phosphite. Sysstem-K is designed for mid to late season use in a wide variety of crops to meet peak nutrient demand timing for potassium and to help mitigate heat stress. Proper nutrient balance is critical to maintaining overall plant health, proper physiologically development and maximizing yield. Applying Sysstem-K at [...]

Sysstem®-MG

Sysstem®-MG is a foliar magnesium fertilizer which can be used at all plant growth stages to correct magnesium deficiencies but is particularly effective early season when plant demand for magnesium peaks. The elemental magnesium in Sysstem-MG is linked to a unique translocating mobility-ion that enhances the nutrient uptake and mobility within the plant. Sysstem-MG’s special [...]

Sysstem®-MN

Sysstem®-MN is a foliar manganese fertilizer. Sysstem-MN can be used at all plant growth stages to correct manganese deficiencies. Proper nutrient balance is critical to maintaining overall plant health and for proper physiological development. Manganese is important in a variety of plant functions such as nitrogen utilization, nodulization in legumes, root development and plant defense. [...]

Sysstem®-Moly-Z

Sysstem®-MolyZ is a foliar zinc and molybdenum fertilizer that is designed for early season use up through pre-bloom sprays on tree and vine crops and on legume crops. Sysstem-MolyZ is particularly effective at early season & pre bloom when zinc demand peaks. Molybdenum has been shown to be particularly effective in increasing fruit set. The [...]

Sysstem®-VT

Sysstem-VT® is a foliar fertilizer containing potassium, calcium and magnesium phosphite and boron. SysstemVT is designed for corn and other row crops and is particularly suited for application immediately pre-tassel on corn and pre and early bloom on other crops to meet peak nutrient demand timing and to encourage maximum seed set. Proper nutrient balance [...]

Sysstem®-ZMag

Sysstem®-ZMag is a foliar zinc and magnesium fertilizer that can be used at all plant growth stages to correct zinc and/or magnesium deficiencies. Sysstem-ZMag is particularly effective at bud-break, pre-bloom, and postharvest when plant demand for zinc and magnesium peaks. The elemental zinc and magnesium in Sysstem-ZMag are linked to a phosphite ion that enhances [...]

Sysstem®-ZN

Sysstem®-ZN is a foliar zinc fertilizer that can be used at all plant growth stages to correct zinc deficiencies. Sysstem-ZN is particularly effective at bud-break, pre-bloom, and post-harvest when plant demand for zinc peaks. The elemental zinc in Sysstem-ZN is linked to a unique translocating mobility-ion that enhances the nutrient uptake and mobility within the [...]