North Iowa Cooperative Logo


Top quality products for your crops from trusted agronomic professionals.

Nutrient Fertilizer Products


MicroEssentials® SZ® is a proprietary fertilizer specially formulated for use on most crops. Through our patented Fusion™ technology process, nitrogen, phosphorus, sulfur and zinc are fused into one nutritionally balanced granule, creating a single source for balanced crop nutrition. The unique chemistry and proper nutrient ratio of MicroEssentials promotes uniform nutrient distribution, improved nutrient uptake, and season-long sulfur availability.


View More Information



Monoammonium phosphate (MAP) is a commonly used source of phosphorus (P) and nitrogen (N). MAP has been an important granular fertilizer for many years. It’s water-soluble and dissolves rapidly in adequately moist soil.



Potash is the common name given to a group of minerals containing potassium (K) and is essential to all forms of plant and animal life.


Potash is mined from deep underground deposits left by ancient inland seas or extracted from salt water bodies.


As a fertilizer it:

  • Improves root and stem strength, water utilization and disease resistance.
  • Enhances taste, color and texture of food


Ammonium sulfate [(NH4)2 SO4] was one of the first and most widely used nitrogen (N) fertilizers for crop production. It’s now less common but especially valuable where both N and sulfur (S) are required. Its high solubility provides versatility for a number of agricultural applications.


Growers apply ammonium sulfate primarily where they need supplemental N and S to meet the nutritional requirement of growing plants. Since ammonium sulfate contains only 21 percent N, other fertilizer sources more concentrated and economical to handle and transport often make a better choice for N-deficient fields. However, it provides an excellent source of S, which supports or drives numerous essential plant functions, including protein synthesis.


Sulfur is an essential component of plant growth, with key processes relying on sulfur like chlorophyll formation and protein production. It is often considered the fourth major nutrient behind N, P and K.


SO4 pelletized gypsum supplies a strong initial release of sulfur followed by a steady supply throughout the growing season, delivering the right of amount of sulfur to perfectly match plant needs for yield-maximizing plant growth. SO4 is mined and manufactured in northwest Iowa from one of the purest gypsum sources in the world. It is finely ground and pelletized to achieve a balance between solubility and pellet strength.


View More Information


Boron 14.3% is a granular, sodium borate–derived product that blends easily with other dry fertilizers. Boron 14.3% delivers nutrition when plants need it most by releasing boron to corn at the optimal time. Virtually free of impurities, WinField™ granular formulations have a very low analysis of heavy metals. Boron 14.3% micronutrient is approved for use in conventional and organic agriculture.


Plant Health Benefits:
Boron is essential to nitrogen metabolism, cell division, and increased flowering and fruiting. Boron also increases pollen number, pollen viability and pollen tube elongation. As a result, plants produce more blooms that mature into more fruit.


Zinc Sulfate 35.5%


Sulfur 90% granular


  • Scientifically designed for better plant availability and earlier nutrient uptake
  • Guaranteed analysis of 57.5% copper

With patented EvenCoat Technology, Wolf Trax Copper DDP is coated onto every granule of an N, P, K or S fertilizer blend. This results in blanket-like distribution of copper across the field, placing the nutrients closer to plant roots for earlier uptake.

  • Copper drives photosynthesis and respiration
  • Copper is a component of lignin, which forms cell walls and helps fight disease
  • Copper is important to seed and fruit set

28% UAN


UAN -liquid fertilizer containing three forms of nitrogen: urea, ammonium-N and nitrate-N.

32% UAN


UAN -liquid fertilizer containing three forms of nitrogen: urea, ammonium-N and nitrate-N.



Anhydrous ammonia, which contains 82% nitrogen, is the most concentrated nitrogen fertilizer. Because of its high nitrogen content, it is often the most cost-effective nitrogen fertilizer. A gas under ambient conditions but a liquid when refrigerated and pressurized, ammonia requires special equipment and technology to transport, store and apply. It is applied by injecting it into the subsoil, where it reverts to a gaseous state and combines with the soil’s moisture to provide the essential nitrogen nutrient.oil cation exchange sites.


Ammonium phosphate is 100% water soluble. The polyphsphate content gives liquid 10-34-0 the ability to hold micronutrients in solution, allowing them to be more available for plant uptake.


ATS contains nitrogen and sulfer (12-0-0-26S). It is one of the most commonly used S-containing liquid fertilizers. ATS is highly soluble in water and is compatible with many other liquid fertilizers.


6-20-5 Balanced Starter Fertilizer


An easy-to-use in-furrow orthophosphate starter fertilizer designed to get plants off to a quick start, OptiStart®/Gold fertilizer delivers available phosphorus and essential elements to help optimize yields.

  • Provides a blend of macro- and micronutrients essential for early season plant vigor.
  • Contains 80% orthophosphate for nutrients that are plant-available immediately.
  • Flexible starter fertilizer that can be applied in-furrow or banded at planting.
  • 100% water-soluble, pure liquid formulation.


9% Zinc

Can serve as an additive to liquid fertilizer and offers flexible application options incluing start fertilizers. Also compatible with other crop protection products such as pesticides.

Magnesium- Mg

Found in the chlorophull molecule, Mg is valuable for plant photosynthesis. Also aids in phosphate metabolism, plant respirationa nd activation of enzyme systems.

Boron- B

Copper- Cu

Iron- Fe

Manganese- Mn

Molybdenum- Mo

Zinc- Zn

Dicamba Online Training

In order to apply any approved dicamba or auxin-specific herbicide, federal regulations require specific annual application training. In the state of Iowa, training that meets EPA requirements are available online via Corteva Agriscience, Bayer and BASF.

NIC Crop Protection Finder

  • Show All
  • Company
    • Reset
    • Advanced Biologics
    • AMVAC
    • BASF
    • Bayer
    • Corteva
    • Koch
    • Loveland
    • Syngenta
    • Valent
    • Verdesian
    • WinField
  • Crop
    • Reset
    • Corn
    • Corn & Soybeans
    • Soybeans
  • Application Timing
    • Reset
    • Early Season
    • Late Season
    • Post-Emerge
    • Pre-Planting
  • Health Protection
    • Reset
    • Disease Control
    • Pest Protection
    • Weed Control
Abundit Edge Herbicide
Corn & Soybeans
Early Season, Late Season, Post-Emerge, Pre-Planting
Weed Control
Post-Emerge, Pre-Planting
Weed Control
Early Season, Post-Emerge, Pre-Planting
Early Season, Late Season, Post-Emerge, Pre-Planting
Weed Control
Early Season, Post-Emerge, Pre-Planting
Weed Control
Corn & Soybeans
Load More

Seed Resources


Dekalb and Asgrow
WinField United

Portland Agronomy Facilities

Centralized to serve the increasing customer base, North Iowa Cooperative’s Portland location has become a dynamic hub for agronomy product storage and application services. With focused investments in space, technology and dispatch management, North Iowa farmers are receiving the area’s best in dry and liquid fertilizer, crop protection, seed and nutrient products.


Agronomy Team

Matt Hardy

Certified Crop Advisor, Agronomy Division Manager

Richard Halsne

Field Sales Agronomist
Phil Markwardt



Phil Markwardt

Agronomy Site Manager

Dennis Maertens

Field Sales Agronomist/Seed Sales

Bob Lugar

Field Sales Agronomist

Ryan Smith

Field Sales Agronomist

Brian Dirksen

Precision Ag Specialist

Derek Johnson

Maintenance & Operations Lead
Cody Ostendorf, CCA

Cody Ostendorf, CCA

Agronomy Team Member