Crop Nutrition Products

Quality Liquid Products That Sustain Your Crop’s Nutritional Needs

Sure Crop Fertilizers has been supplying growers with liquid crop nutrition for over 40 years.

Our founder, Don Schurman, discovered through research on his own farm that simply balancing soil nutrient levels was the key to healthier, more productive soils. Our liquid crop nutrition products are highly efficient, versatile in application, and formulated to increase the yields of row, forage, fruit, and vegetable crops as well as in turf and tree production. We take the time and effort to make sure that every load delivered out is blended to perfection with the right specifications that you have requested.

Sure Crop Products - healthy soybean field

Sure Premium Starters

Sure Start 8-27-3

Sure Start 8-27-3 is a highly efficient blend of nitrogen, phosphorus, and potassium uniquely designed to produce ...

ANALYSIS: 8-27-3

WEIGHT per GALLON: 11.10 lbs

FREEZING POINT: 1° F

Sure Start 7-25-2

Sure Start 7-25-2 is a homogenized, low salt blend that provides available Phosphorus for faster, more uniform ...

ANALYSIS: 7-25-2

WEIGHT per GALLON: 10.70 lbs

FREEZING POINT: 9° F

Sure Start 5-20-5

Sure Start 5-20-5 is comprised of the purest form of liquid ortho phosphate plant nutrition to provide a rapid ...

ANALYSIS: 5-20-5

WEIGHT per GALLON: 10.40 lbs

FREEZING POINT: 10° F

Sure Start 4-16-5

Sure Start 4-16-5 is an economical, balanced blend that provides growing crops with the necessary nutrition to ...

ANALYSIS: 4-16-5

WEIGHT per GALLON: 10.50 lbs

FREEZING POINT: 14° F

Sure Start Fish

Sure Fish is an OMRI certified, natural source of organic nitrogen, phosphorus with natural enzymes and hormones to ...

ANALYSIS: 2-5-0

WEIGHT per GALLON: 9.10 lbs

FREEZING POINT: 37° F

Potassium-Nitrogen-Sulfur

Sure Power-NK+

Sure Power-NK+ is a unique formulation of nitrogen, potassium, and sulfur in combination with a proprietary carrier ...

ANALYSIS: 2-0-20-6S

WEIGHT per GALLON: 11.10 lbs

FREEZING POINT: 32° F

Sure Grow-N/S

Sure Grow-N/S is a liquid formulation containing nitrogen and sulfur with an analysis of 9-0-0-20S and an organic ...

ANALYSIS: 9-0-0-20S

WEIGHT per GALLON: 10.40 lbs

FREEZING POINT: Negative 4° F

Foliars

Sure Optimum K+

Applied as a foliar, Sure Optimum K+ provides potassium to promotes seed set and fill to increase yield and test ...

ANALYSIS: 3-0-13

WEIGHT per GALLON: 10.00 lbs

FREEZING POINT: Negative 4° F

Sure Optimum N+

Sure Optimum N+ is a quickly assimilated foliar source of nitrogen and sulfur with an analysis of 19-0-0-1S. It has ...

ANALYSIS: 19-0-0-1S

WEIGHT per GALLON: 9.70 lbs

FREEZING POINT: 7° F

Sure Grow Vigor

Sure Grow Vigor is applied early in the growing season to supply nitrogen and calcium with Carbon to promote healthy

ANALYSIS: 7-0-0-7Ca

WEIGHT per GALLON: 10.90 lbs

FREEZING POINT: 0° F

Sure Assurance

With an analysis of 7-10-3-2, Sure Assurance provides a well rounded nutrient package as crops move into ...

ANALYSIS: 7-10-3-S

WEIGHT per GALLON: 10.00 lbs

FREEZING POINT: 13° F

Bio-Stimulants

Sure Activate

Sure Activate is derived from high oxidized fulvic acid and contains more than 60 minerals and trace elements. ...

WEIGHT per GALLON: 8.30 lbs

FREEZING POINT: 36° F

Sure Humate

Sure Humate is derived from highly oxidized naturally occurring humalite deposits and is a concentrated form of ...

WEIGHT per GALLON: 8.70 lbs

FREEZING POINT: 32° F

Sure Crop Micro

Sure Crop Micro is an OMRI certified, natural fertilizer with micronutrients and naturally occurring biological ...

ANALYSIS: 0-0-4

WEIGHT per GALLON: 9.00 lbs

FREEZING POINT: 20° F

Sure Z/Micro

Sure Z/Micro is a source of zinc and fermented nutrients that stimulate germination and soil microorganisms to ...

ANALYSIS: 0-0-0-2Zn

WEIGHT per GALLON: 9.10 lbs

FREEZING POINT: 23° F

Sure Energizer

Sure Energizer is a liquid seed treatment that promotes quicker germination and more vigorous early growth. It has ...

ANALYSIS: 3-6-3-1Zn

WEIGHT per GALLON: 10.00 lbs

FREEZING POINT: 18° F

Micronutrients

Sure Micro-Pak

Sure Crop Micro-Pak is a synergistic blend of chelated zinc, manganese, iron, copper, and boron formulated with ...

ANALYSIS: 2Zn - 1.5 Mn - 0.5 Fe - 0.5 Cu - 0.5 B

WEIGHT per GALLON: 10.00 lbs

FREEZING POINT: 10° F

Sure Zinc 9%

Sure Zinc 9% can be used to prevent and correct zinc deficiencies.

ANALYSIS: 0-0-0-9Zn

WEIGHT per GALLON: 11.00 lbs

FREEZING POINT: 2° F

Sure Manganese 6%

Sure Manganese 6% can be used to prevent and correct manganese deficiencies.

ANALYSIS: 0-0-0-6Mn

WEIGHT per GALLON: 11.00 lbs

FREEZING POINT: 5° F

Sure Iron 4.5%

Sure Iron 4.5% can be used to prevent and correct iron deficiencies.

ANALYSIS: 0-0-0-4.5Fe

WEIGHT per GALLON: 10.00 lbs

FREEZING POINT: 21° F

Sure Copper 7.5%

Sure Copper 7.5% can be used to prevent and correct copper deficiencies.

ANALYSIS: 0-0-0-7.5Cu

WEIGHT per GALLON: 10.60 lbs

FREEZING POINT: 2° F

Sure Boron 3.3%

Sure Boron 3.3% can be used to prevent and correct boron deficiencies.

ANALYSIS: 0-0-0-3.3B

WEIGHT per GALLON: 9.50 lbs

FREEZING POINT: 23° F

Sure Sulfur 6%

Sure Crop Sulfur 6% is a provides essential sulfur that is necessary for photosynthesis, nodulation, and protein and

ANALYSIS: 0-0-0-6S

WEIGHT per GALLON: 9.90 lbs

FREEZING POINT: 21° F

Sure Magnesium 2.5%

Sure Crop Magnesium 2.5% treats and prevents Magnesium deficiencies. Magnesium is a central ion of chlorphyll ...

ANALYSIS: 0-0-0-2.5Mg

WEIGHT per GALLON: 10.50 lbs

FREEZING POINT: 12° F

Sure Calcium 3%

Sure Crop Calcium 3% improves plant cellular structure, crop vigor, and nitrogen uptake. It is compatible with other

ANALYSIS: 0-0-0-3Ca

WEIGHT per GALLON: 9.80 lbs

FREEZING POINT: 23° F

Specialty Products

Sure Power-Pak

Sure Power-Pak is an adjuvant and absorption activator that enhances efficacy of crop protection products. Power-Pak

WEIGHT per GALLON: 9.60 lbs

FREEZING POINT: 14° F

Sure Complete

Sure Complete is a Residue Digester that’s stimulates residue digestion, recycles carbon, and mineralizes nutrients ...

ANALYSIS: 4-0-0-6S

WEIGHT per GALLON: 9.30 lbs

FREEZING POINT: 19° F

Sure N-Stay

Sure N-Stay is a unique formulation of Nitrogen and Sulfur that can be added with UAN solutions to stabilize and ...

ANALYSIS: 7-0-0-9S with .08% Zinc and .08% Manganese

WEIGHT per GALLON: 10.96 lbs

FREEZING POINT: 16° F

Sure Plen-T Phos

Sure Plen-T Phos is an inhibitor that reduces phosphate from being fixed by minerals in the soil, including calcium,

WEIGHT per GALLON: 10.40 lbs

FREEZING POINT: 21° F

Sure Plen-T Cal

Sure Plen-T Cal is an available form of calcium that can prevent and correct calcium deficiencies in plants. Plen-T ...

ANALYSIS: 8-0-0-10Ca

WEIGHT per GALLON: 11.80 lbs

FREEZING POINT: Negative 4° F

Sure Plen-T Sweet

Sure Plen-T Sweet is a concentrated form of readily available, soluble (active) carbon. Plen-T Sweet feeds soil ...

ANALYSIS: 7-0-0

WEIGHT per GALLON: 9.90 lbs

FREEZING POINT: 18° F

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