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"Since its inception in 1967, Marion Ag Service, Inc. has aimed to provide exceptional customer service and high-quality solutions to growers throughout the Willamette Valley. Over the years, we have expanded our roots far beyond our home in St. Paul, Oregon and adapted our products to satisfy the needs of our ever-expanding customer base.


Our core belief in finding win-win solutions for our customers allows us to grow together. This belief enables us to grow our people, relationships, business resources by adding value to the crops and landscapes help grow.


Today Marion Ag has three core focus areas; Technical Services, Soil Health, and Nutrient Delivery. Each focus area houses a suite of individual services that deliver value to our grower and re-seller customers.


Whether you are a grower looking for unbiased professional service, a re-seller in need of an effective supply chain partner or a manufacturer needing to evaluate your product. Marion Ag has the people and expertise to make your business better."

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Pro-Pell-It Intrepid Trio 0-0-22 is a naturally mined mineral commonly called, langbeinite. Trio is unique in that provides a readily available source of three essential plant nutrients: potassium, magnesium, and sulfate. Ideal for plants that are sensitive to high levels of chlorine or soluble salts.

Marion Ag Services Intrepid Trio 0-0-22

Pro-Pell-It! Micronized Crustacean Meal is derived from the same material used to create our Crustacean Meal 4-0-0. The process of grinding our source material creates a micronized product that is the same consistency as flour. This smaller particle size means better distribution in the soil and increased nutrient availability

Marion Ag Services Micronized Crustacean Meal 4-0-0

Pro-Pell-It! Kelp Meal is made from a special species of giant kelp found along the Pacific coasts, Macrocystis pyrifera. What makes this species unique is that it is known to contain higher concentrations of nitrogen potassium than other kelps available on the market. Pro-Pell-It! Kelp Meal is harvested from the Pacific Ocean and sun-dried until it is ready for processing. It should be used to complement an NPK program.

Marion Ag Services Kelp Meal 2-0-4

Formulated to provide sulfate forms of macro and micronutrients which foster acidic soil conditions with low salt compounds

Marion Ag Services Rhody 15-5-10

Pro-Pell-It! Pelletized Gypsum is granulated, water-soluble grade gypsum commonly used to manage soil pH and sulfur /calcium into the soil. This easy-to-handle product can be applied using a rotary type broadcast spreader. Each granule is designed to disperse or break apart shortly after coming in contact with water. Available in mini and standard sizes.

Marion Ag Services Pelletized Gypsum

Pro-Pell-It! Mag Kick is granulated mineral containing four crucial plant nutrients: magnesium, iron, calcium, and manganese. Originally created for the turf market, growers around the PNW began experimenting with Mag-Kick in both nurseries and in field crops. It’s now included in several of our house blends including Premix 2000.

Marion Ag Services Mag Kick

Long-term grow blend with slow release of all nutrients over a 9-16 month time period depending on the average media temperature. This formulation includes Talstar Insecticide for long-lasting control of over 75 pests includes ants, termites, cockroaches, spiders, bed bugs, fleas and ticks.

Marion Ag Services 16-5-11 with Talstar Insecticide

Pro-Pell-It! Fish Meal 9-4.5-0 is a versatile fertilizer used by many growers in the early-middle stages of plant growth due to its high nitrogen content complemented with a reasonable amount of phosphorus. Fish Meal is ideal for incorporation at the time of planting or for topdressing throughout the season. It can be used as a nitrogen “kicker” for a feather based nutrition program or for plants that are showing nitrogen deficiency.

Marion Ag Services Fish Meal 9-4.5-0

A dry formulation of water-soluble humic acid that won’t break the bank. Humic Acid 50 can be used to increase soil organic matter and stimulate microbial activity. 

Marion Ag Services Humic Acid 50

Marion Ag Services

"Since its inception in 1967, Marion Ag Service, Inc. has aimed to provide exceptional customer service and high-quality solutions to growers throughout the Willamette Valley. Over the years, we have 

Marion Ag Services - Agrochem - Soil Health - Knowde

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Marion Ag Services Cottonseed Meal 5-2-1 is a great all-purpose fertilizer. Due to its slightly acidic nature, Cottonseed Meal is ideal for plants that thrive in acidic soil such as blueberries, strawberries, azaleas, and rhododendrons. Historically this product was registered organic with WSDA. However, due to new regulations regarding the use of GMO products this product is no longer organically certified despite being packaged under the name.

Cottonseed Meal 5 2 1 Safety Data Sheet

Cottonseed Meal 5 2 1 Safety Data Sheet - Marion Ag Services

Marion Ag Services Cottonseed Meal 5-2-1

Pro-Pell-It! Cottonseed Meal 5-2-1 is a great all-purpose fertilizer. Due to its slightly acidic nature, Cottonseed Meal is ideal for plants that thrive in acidic soil such as blueberries, strawberrie

Marion Ag Services Cottonseed Meal 5-2-1 - Fertilizers - Knowde

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Pro-Pell-It! Cottonseed Meal 5-2-1 is a great all-purpose fertilizer. Due to its slightly acidic nature, Cottonseed Meal is ideal for plants that thrive in acidic soil such as blueberries, strawberries, azaleas, and rhododendrons. Historically this product was registered organic with WSDA. However, due to new regulations regarding the use of GMO products this product is no longer organically certified despite being packaged under the Pro-Pell-It! name.

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Total Nitrogen (N) 5.00% Water Insoluble Nitrogen	5.00%
Available Phosphate (P2O5)	2.00%
Soluble Potash (K2O)	1.00%

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