Specialty Agriculture

3-18-20, DKP EXTRA™ Potassium PolyPhosphate- Phosphite Combo

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DKP XTRA 3-18-20 is a unique balanced polymeric combination of potassium polyphosphates and phosphites. DKP XTRA is a systemic product for use as a bloom and fruit sizer and finisher, liquid nutrient supplement for a wide variety of bloom- ing crops, including fruit, vegetable, ornamental, turf and field crops, for both leaf foliar and soil application. DKP XTRA can also be used as a starter fertilizer at planting, placed 2 inches below and to the side of the seed. 

Directions for Use:
DKP XTRA 3-18-20 can be applied as a foliar spray, with ground sprayers or applicators, or with aerial application 

DKP XTRA may possibly be combined with other agricultural chemicals, including other liquid plant nutrients, and pesticides, for application efficiency; but a small jar compatibility test should be first be made before making commercial applications to the crop. A small portion of the crop should then be treated first, in order to determine phototoxic effect, if any.


FRUIT CROPS-  Citrus, Avocados, Strawberries, and all other deciduous and non- deciduous fruits, apply 2-5 gallons per acre of DKP XTRA, during the early bloom stage, and every 3-6 weeks, 30 days prior to harvest, for fruit sizing, acid ratio control and total brix increase.

VEGETABLE CROPS- Sizing, yield increase for Tomatoes, Peppers, Lettuce, Spinach, Leaf, Cole Crops, Cucurbits, Beans, Peas, Potatoes, Root, Bulb, or Tuber Crops, apply 2-5 gallons of DKP XTRA, per acre, 30 days after planting, and pre-bloom, thru fruit set, every 5-7 days, or as required, with the last application, 3-4 weeks prior to harvest. To extend harvest, continue application after first picking.

ORNAMENTAL CROPS- For blooming ornamentals, apply 1-2 pints of DKP XTRA, per 1,000 square feet of growing area, 30 days after planting, and pre-bloom, through flower maturity, every 5-7 days, or as required, with the last application, 3-4 weeks prior to harvest.

CAUTION: Do not apply with less than 20 gallons of water for each gallon of DKP XTRA to be applied.

CAUTION: Do not apply with Calcium

Limited Warranty NOTICE: Under most conditions, DKP XTRA can be applied as recommended: However, many contingent risk factors may exist and crop injury is always a possibility whenever foliar sprays are applied to crops. Manufacturer and seller warrants that this product conforms only to its chemical description as stated on the label only, and that this product is reasonably fit for the purpose stated on the label when used in accordance with the label directions and instructions under normal conditions of use. Neither this warranty of merchantability or fitness for a particular purpose expressed or implied extends to the use of this product contrary to label instructions or under abnormal conditions or under conditions not reasonably foreseeable to the seller, and applicator assumes all risks.


Keep away from children and domestic animals. Avoid contact with eyes, open cuts, or sores. Harmful if swallowed. External: Flood with water. Internal: Induce vomiting. Contact a physician immediately.

Storage and Handling:

Store in a cool, dry place. Keep container tightly closed. Do not add water or other material to the container. Do not con- taminate water, food, or feed by storage or disposal. Do not store near acids or other acidic materials.

Store above 32° Do Not allow to freeze