Chapter 3105 — Customs Tariff Headings

3105.5Other mineral or chemical fertilizers containing the two fertilizing elements nitrogen and phosphorus:

3105.60.00Mineral or chemical fertilizers containing the two fertilizing elements phosphorus and potassium

3105.90.00Other

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Products classified under Tariff item 31.05

BioAdvanced 12-Month Tree & Shrub Fertilizer Spikes

Fertilizer spikes containing nitrogen, phosphorus, and potassium (NPK) in a solid, tablet-like form, packaged in small retail boxes weighing 10 kg or less. These are goods of Chapter 31 presented in tablets or similar forms, meeting the tariff item's condition of a gross weight not exceeding 10 kg.

Bonide Fruit Tree Fertilizer Spikes

Fruit tree fertilizer spikes containing NPK, pre-formed for direct soil insertion, sold in retail boxes under 10 kg. These are Chapter 31 fertilizers in tablet-like forms, packaged for consumer use, fitting the tariff item's scope.

Dr. Earth Home Grown Fertilizer Packs

Organic NPK fertilizer pellets in retail packs weighing 4 lb (about 1.8 kg), intended for home fruit and vegetable gardens. Despite the organic claim, the product is a Chapter 31 fertilizer in pellet form, packaged under 10 kg, qualifying for this tariff item.

Espoma Organic Garden-Tone Fertilizer Bags

Organic-based NPK fertilizer in 4 kg bags for flowers and vegetables, ready for retail sale. The product is a Chapter 31 fertilizer in a package not exceeding 10 kg, meeting the tariff item's requirements even with organic constituents.

FoxFarm Grow Big Liquid Fertilizer Bottles

Liquid NPK fertilizer concentrate in 1-quart bottles (under 10 kg) for hydroponic use. As a Chapter 31 fertilizer in liquid form, packaged for retail in small containers, it falls under this tariff item for goods in packages not exceeding 10 kg.

Hydroponic NPK Tablet Dispensers

Soluble NPK tablets in 2 kg dispensers for hydroponic systems. These are Chapter 31 fertilizers in tablet form, packaged under 10 kg, directly matching the tariff item's description of goods in tablets or similar forms.

Jiffy Plant Food Sticks

Compostable NPK sticks in small retail packs, similar to tablets, for plant feeding. These are Chapter 31 fertilizers in stick form, packaged under 10 kg, qualifying for this tariff item as goods in similar forms.

Jobe's Tomato & Vegetable Fertilizer Spikes

Pre-formed fertilizer spikes delivering NPK to vegetable roots, retail packaged for home gardens. These are Chapter 31 fertilizers in spike form, similar to tablets, and packaged under 10 kg, meeting the tariff item's criteria.

Miracle-Gro Water Soluble All Purpose Plant Food Tablets

Compressed tablets containing nitrogen, phosphorus, and potassium (NPK) for retail garden use. These are Chapter 31 fertilizers in tablet form, packaged under 10 kg, directly matching the tariff item's description.

Osmocote Smart-Release Plant Food Spikes

Slow-release fertilizer spikes with balanced NPK for potted plants, sold in small retail boxes. These are Chapter 31 fertilizers in solid, spike form, packaged under 10 kg, qualifying for this tariff item.

Pennington UltraGreen Lawn Fertilizer Boxes

High-nitrogen granular lawn food in 8 kg retail boxes. As a Chapter 31 fertilizer in granular form, packaged under 10 kg, it falls under this tariff item for goods in packages not exceeding 10 kg.

Rose Tone Flower Fertilizer Pouches

NPK fertilizer for roses in 3.6 kg pouches, retail packaged for home gardeners. These are Chapter 31 fertilizers in pouch form, under 10 kg, meeting the tariff item's package weight requirement.

Scotts Turf Builder Lawn Food Pouches

Granular NPK lawn fertilizer in 5 kg retail pouches for homeowner use. As a Chapter 31 fertilizer in granular form, packaged under 10 kg, it qualifies for this tariff item.

Vigoro All-Purpose Fertilizer Shaker Bottles

NPK granular fertilizer in 2.5 kg shaker bottles for lawns and gardens. These are Chapter 31 fertilizers in granular form, packaged in small retail containers under 10 kg, fitting this tariff item.

Advanced Nutrients pH Perfect Grow Micro Bloom

A three-part liquid fertilizer system containing nitrogen, phosphorus, and potassium, designed for hydroponic use. The set is packaged for retail sale with a total gross weight under 10 kg, and the components are intended to be mixed together to form a complete fertilizer.

Down To Earth Bio-Live 5-4-2 Fertilizer

A granular fertilizer blend with an NPK ratio of 5-4-2, made from fish bone meal and sulfate of potash. It is packaged in 5 lb retail bags and contains all three primary fertilizing elements.

Dr. Earth Home Grown 4-4-4 Fertilizer

A granular fertilizer with an NPK ratio of 4-4-4, enriched with beneficial bacteria and mycorrhizae. It is packaged in 4 lb retail bags and contains nitrogen, phosphorus, and potassium.

Espoma Garden-Tone 3-4-4 Organic Fertilizer

An organic fertilizer blend with an NPK ratio of 3-4-4, made from sulfate of potash, bone meal, and feather meal. It is packaged in 18 lb retail bags and contains all three primary fertilizing elements.

FoxFarm Grow Big 6-4-4 Fertilizer

A liquid vegetative fertilizer with an NPK ratio of 6-4-4, containing earthworm castings and kelp. It is packaged in 32 oz bottles for retail sale and contains nitrogen, phosphorus, and potassium.

General Hydroponics Flora Series Complete Kit

A retail kit containing three liquid fertilizers (FloraGro, FloraMicro, FloraBloom) with a combined NPK profile. The kit is packaged together for retail sale with a total gross weight under 10 kg.

GRO Power 5-5-5 Plus Humic Acid Fertilizer

A granular fertilizer with an NPK ratio of 5-5-5, containing 3% humic acid from leonardite. It is packaged in 25 lb retail bags and contains nitrogen, phosphorus, and potassium.

Jobe's Organics All Purpose Fertilizer Spikes

Fertilizer spikes with an NPK ratio of 4-4-4, made from feather meal, bone meal, and sulfate of potash. They are packaged in retail packs of 50 spikes with a total gross weight under 10 kg.

Miracle-Gro All Purpose Plant Food

A water-soluble fertilizer with an NPK ratio of 24-8-16, designed for flowers, vegetables, and houseplants. It is packaged in a retail shaker bottle and contains nitrogen, phosphorus, and potassium.

NPK 10-10-10 Granular Fertilizer

A balanced granular fertilizer with an NPK ratio of 10-10-10, designed for general lawn and garden use. It contains nitrogen, phosphorus, and potassium in a retail package.

NPK 20-20-20 Hydroponic Fertilizer

A water-soluble balanced fertilizer with an NPK ratio of 20-20-20, designed for hydroponic systems. It is packaged in 1 kg retail pouches and contains nitrogen, phosphorus, and potassium, along with micronutrients.

Osmocote 14-14-14 Controlled Release Fertilizer

A polymer-coated granular fertilizer with an NPK ratio of 14-14-14, designed for controlled release of nutrients. It is packaged in retail bags under 10 kg and contains nitrogen, phosphorus, and potassium.

Vigoro 16-4-8 Vegetable Garden Fertilizer

A granular fertilizer with an NPK ratio of 16-4-8, designed for vegetable gardens. It contains urea nitrogen, phosphate, and potash, and is packaged in 5 kg retail bags.

Compact DAP Tablets for Drip Systems

Slow-dissolve DAP tablets in 500g packs for fertigation systems. These tablets are diammonium hydrogenorthophosphate, a fertilizer containing both nitrogen and phosphorus, and are put up in a form (tablets) and package weight (≤10 kg) that fall squarely under tariff item 3105.30.00.

DAP 18-46 Water-Soluble Fertilizer Pouches

Water-soluble diammonium phosphate (18-46-0) in 1 kg pouches for fertigation. This product is a diammonium hydrogenorthophosphate fertilizer containing nitrogen and phosphorus, and is put up in small retail packages not exceeding 10 kg, making it classifiable under tariff item 3105.30.00.

DAP Foliar Spray Concentrate Pouches

Soluble DAP concentrate in 3 kg pouches for foliar application. This product is diammonium hydrogenorthophosphate, a fertilizer with nitrogen and phosphorus, and is presented in packages under 10 kg, qualifying for tariff item 3105.30.00.

DAP Seed-Safe Fertilizer Bands

Low-salt DAP in 2 kg banded packs for precision seed placement. This diammonium hydrogenorthophosphate fertilizer contains nitrogen and phosphorus and is packaged in small quantities (≤10 kg), making it eligible for tariff item 3105.30.00.

Diammonium Phosphate 18-46-0 Fertilizer Granules

Granular diammonium hydrogenorthophosphate (DAP) fertilizer with 18% nitrogen and 46% P2O5, used for root development in crops. This product is a pure DAP fertilizer containing nitrogen and phosphorus, and is not put up in the forms or packages described in heading 31.05, so it falls under tariff item 3105.30.00.

Diammonium Phosphate Bloom Booster Pack

8 kg booster packs of DAP emphasizing phosphorus for flowering plants. This diammonium hydrogenorthophosphate fertilizer contains nitrogen and phosphorus and is packaged in a retail size under 10 kg, making it classifiable under tariff item 3105.30.00.

Diammonium Phosphate for Acidic Soils

Neutralizing DAP (19-45-0) in 9.5 kg bags for pH correction in acidic soils. This product is diammonium hydrogenorthophosphate, a nitrogen-phosphorus fertilizer, and is packaged in bags under 10 kg, qualifying for tariff item 3105.30.00.

Diammonium Phosphate Greenhouse Mix 20-40-0

High-analysis DAP mix (20-40-0) in 4 kg moisture-resistant boxes for controlled-environment agriculture. This diammonium hydrogenorthophosphate fertilizer contains nitrogen and phosphorus and is packaged in small boxes under 10 kg, making it eligible for tariff item 3105.30.00.

Eco-Friendly DAP with Micronutrients Trace

DAP granules with trace micronutrients in 10 kg eco-packs. This product is primarily diammonium hydrogenorthophosphate with nitrogen and phosphorus, and the trace micronutrients do not alter its classification under tariff item 3105.30.00, provided the primary fertilizer is DAP.

High-Purity DAP for Hydroponic Systems

99% pure crystalline DAP in 500g pouches for hydroponic nutrient solutions. This product is diammonium hydrogenorthophosphate, a nitrogen-phosphorus fertilizer, and is packaged in small pouches under 10 kg, qualifying for tariff item 3105.30.00.

Monoammonium Phosphate-Diammonium Phosphate Blend Pack

A 5 kg retail pack blending monoammonium phosphate (MAP) and diammonium phosphate (DAP) for balanced N-P nutrition. This product contains diammonium hydrogenorthophosphate as a key component and is packaged in a small retail pack under 10 kg, making it classifiable under tariff item 3105.30.00.

Organic-Coated Diammonium Phosphate Starter Fertilizer

Polymer-coated DAP granules (16-44-0) in 9 kg bags for seed-starting. This product is diammonium hydrogenorthophosphate with nitrogen and phosphorus, and the polymer coating does not change its essential character. It is packaged in bags under 10 kg, qualifying for tariff item 3105.30.00.

Premium DAP for Ornamental Nurseries

Fine-grade DAP in 5 kg nursery packs for potting mixes. This diammonium hydrogenorthophosphate fertilizer contains nitrogen and phosphorus and is packaged in small nursery packs under 10 kg, making it classifiable under tariff item 3105.30.00.

Professional DAP Starter for Row Crops

6 kg professional-grade DAP (18-46-0) for corn and sorghum starters. This product is diammonium hydrogenorthophosphate, a nitrogen-phosphorus fertilizer, and is packaged in durable bags under 10 kg, qualifying for tariff item 3105.30.00.

Retail DAP Fertilizer for Turf and Lawns

Consumer 7 kg bags of diammonium phosphate granules for lawn greening. This product is diammonium hydrogenorthophosphate, a nitrogen-phosphorus fertilizer, and is packaged in retail bags under 10 kg, making it classifiable under tariff item 3105.30.00.

DAP Granules 21-53-0 High Nitrogen Blend

DAP Granules 21-53-0 High Nitrogen Blend is a premium diammonium phosphate fertilizer with elevated nitrogen content, supplied in 1-metric-ton jumbo bags. It is classifiable under tariff item 3105.40.00 as a mixture of diammonium hydrogenorthophosphate with other phosphate compounds, meeting the chapter note 5 provision for intermixtures.

DAP-MAP 15-30-15 Complete Starter Blend

DAP-MAP 15-30-15 Complete Starter Blend is a triple mixture of DAP, MAP, and potash, creating a balanced 15-30-15 starter fertilizer. It falls under tariff item 3105.40.00 because it is a mixture of monoammonium and diammonium phosphates, even with potash added, as long as it is not classified under the NPK heading 3105.20.00.

Diammonium Phosphate 18-46-0 Granular Fertilizer

Diammonium Phosphate 18-46-0 Granular Fertilizer is standard DAP with 18% nitrogen and 46% P2O5, directly matching the description of diammonium hydrogenorthophosphate. It is classifiable under tariff item 3105.40.00 as a pure compound or in mixtures, per chapter note 5.

Hydroponic Monoammonium Phosphate Solution

Hydroponic Monoammonium Phosphate Solution is a liquid MAP solution for hydroponics. It is classifiable under tariff item 3105.40.00 as ammonium dihydrogenorthophosphate in aqueous solution, as it is not put up in forms or packages of heading 31.05.

MAP 11-55-0 High Purity Fertigation Grade

MAP 11-55-0 High Purity Fertigation Grade is ultra-pure monoammonium phosphate with low insolubles, designed for drip systems. It is classifiable under tariff item 3105.40.00 as ammonium dihydrogenorthophosphate, per chapter note 5.

MAP and DAP 50/50 Blend

MAP and DAP 50/50 Blend is a 50/50 mixture of monoammonium and diammonium phosphates with a 16-32-0 analysis, packaged for retail farm supply stores under 10 kg. It is classifiable under tariff item 3105.40.00 as an intermixture, but note the retail packaging may shift classification to 3105.10.00.

MAP-DAP 16-20-0 Starter Fertilizer Blend

MAP-DAP 16-20-0 Starter Fertilizer Blend is a mixture of monoammonium and diammonium phosphates with a 16-20-0 analysis. It is explicitly covered by tariff item 3105.40.00 as an intermixture of these two compounds, per chapter note 5.

MAP Lawn Starter Fertilizer Bag

MAP Lawn Starter Fertilizer Bag is a 5 kg bag of monoammonium phosphate for lawn seeding, packaged for retail sale. It is classifiable under tariff item 3105.40.00 as ammonium dihydrogenorthophosphate, but the retail packaging under 10 kg may shift it to 3105.10.00.

Micro-Prilled DAP 18-46-0 Fine Grade

Micro-Prilled DAP 18-46-0 Fine Grade is diammonium phosphate with a smaller particle size for precision agriculture. It is classifiable under tariff item 3105.40.00 as diammonium hydrogenorthophosphate, regardless of particle size.

Monoammonium Phosphate 11-52-0 Fertilizer

Monoammonium Phosphate 11-52-0 Fertilizer is pure MAP with 11% nitrogen and 52% P2O5, used for basal application. It is classifiable under tariff item 3105.40.00 as ammonium dihydrogenorthophosphate, per chapter note 5.

Monoammonium Phosphate 11-52-0 Granules

Monoammonium Phosphate 11-52-0 Granules is granular MAP fertilizer, standard for starter fertilizers. It is classifiable under tariff item 3105.40.00 as ammonium dihydrogenorthophosphate, per chapter note 5.

Monoammonium Phosphate Acidifier

Monoammonium Phosphate Acidifier is MAP used as a soil acidifier for blueberries and azaleas. It is classifiable under tariff item 3105.40.00 as ammonium dihydrogenorthophosphate, as its primary function is fertilization, even with soil acidification benefits.

Neutralized MAP 10-50-0 Low pH Fertilizer

Neutralized MAP 10-50-0 Low pH Fertilizer is monoammonium phosphate treated to reduce soil acidification, supplied in FIBCs over 500 kg. It is classifiable under tariff item 3105.40.00 as ammonium dihydrogenorthophosphate, as neutralization does not alter its chemical identity.

Organic Certified MAP Fertilizer

Organic Certified MAP Fertilizer is OMRI-listed monoammonium phosphate for organic farming. It is classifiable under tariff item 3105.40.00 as ammonium dihydrogenorthophosphate, as organic certification does not change its chemical composition.