BioAg TM-7

BioAg TM-7 is a dry powder micronutrient supplement that combines seven essential trace elements with 40% humic acid in a single formulation. Designed for use across soil, coco, and hydroponic systems, it addresses trace element deficiencies while supporting nutrient uptake through the chelating properties of humic acid. Each 300g container treats multiple application cycles for home and commercial growers.

BioAg TM-7 Specifications

BioAg TM-7 is a concentrated dry micronutrient powder distributed by BuildASoil. The guaranteed analysis below is taken directly from the product label. Non-plant food ingredients: Humic Acid 40%.

Specification	Value
Package Size	300 g
Net Weight	~2 lb (1.9996 lb)
Formula	Powder or Granular
Color	Dark Brown / Black
Odor	Mild
Solubility	95–99%
pH (as mixed)	9.0–11.0
Humic Acid (non-plant food)	40%
Sulfur (S)	2%
Boron (B)	0.37%
Cobalt (Co)	0.05%
Copper (Cu)	0.31%
Iron (Fe)	1.2%
Manganese (Mn)	1.2%
Molybdenum (Mo)	0.1%
Zinc (Zn)	0.7%

Why Choose BioAg TM-7

Most base nutrient programs supply sufficient nitrogen, phosphorus, and potassium, but trace element deficiencies are common and often overlooked. A shortage of iron, manganese, or zinc at the wrong time can limit enzyme activity, reduce chlorophyll production, and cut yields. BioAg TM-7 addresses this gap by delivering seven micronutrients in a single, concentrated powder that dissolves at 95–99% solubility, making it practical for both soil drenching and fertigation lines.

The formulation includes 40% humic acid, which is not a nutrient itself but plays a supporting role in nutrient delivery. Humic acid improves the cation exchange capacity of growing media, helping nutrients remain available to roots longer rather than leaching out with watering. This is particularly useful in fast-draining coco and perlite-heavy mixes where trace elements can wash through before plants have a chance to absorb them.

The powder-or-granular form factor gives growers flexibility. Mixed into water for a drip or foliar application, it behaves like a liquid micronutrient solution. Applied dry to soil before planting or as a top dressing, it releases gradually over multiple waterings. This dual-use characteristic makes a single container useful at multiple points in the grow cycle.

• Seven micronutrients in one application: Sulfur, Boron, Cobalt, Copper, Iron, Manganese, Molybdenum, and Zinc are covered in a single dose, reducing the need for individual element supplements.
• High solubility: 95–99% solubility means it mixes cleanly into reservoir water, drip lines, or foliar spray tanks with minimal sediment.
• Humic acid carrier: The 40% humic acid content improves soil structure and cation exchange, extending the effective window of micronutrient availability in the root zone.
• Compatible with most programs: Works with organic and synthetic base nutrient lines. A jar test before tank mixing with other additives is recommended to confirm compatibility.
• Versatile application methods: Suitable for drip irrigation, pivot fertigation, foliar spray, at-planting soil incorporation, and hydroponic reservoir dosing.

Best Uses for BioAg TM-7

BioAg TM-7 is broadly applicable across crop types and growing systems. The following use cases are grounded in the application recommendations listed on the product label.

• Correcting mid-cycle trace element deficiencies: When visual symptoms of iron chlorosis, boron deficiency, or zinc lockout appear, a foliar application of TM-7 mixed at label rate delivers micronutrients directly through leaf tissue, bypassing root uptake issues caused by pH drift or media saturation.
• Pre-plant soil amendment: Incorporated into the root zone at planting, the granular form releases micronutrients gradually through the early vegetative stage when plants are establishing root systems and have limited access to stored reserves.
• Routine fertigation in commercial production: Drip and pivot irrigation systems can deliver a diluted TM-7 solution on a regular interval to maintain trace element levels in high-production soil and coco beds without requiring manual top-dressing.
• Hydroponic reservoir supplementation: In recirculating or drain-to-waste hydroponic systems, TM-7 supplements the trace element package of most base nutrient formulas, particularly during late vegetative and early flowering when calcium-magnesium supplements are heavy and can crowd out minor elements.
• Improving fruit set and quality: Regular soil applications are noted on the product label to promote increased fruit set. Boron plays a documented role in pollen tube germination and fruit development, and the combination of boron with the other six elements in TM-7 supports this application.
• Pairing with microbial products: The humic acid in TM-7 supports microbial activity in living soil grows. Growers using inoculants like beneficial fungi and bacteria supplements often include humic acids in their programs to feed soil biology alongside plant roots.

BioAg TM-7 vs Similar Micronutrient Products

Micronutrient supplements fall into two broad categories: chelated liquid concentrates and dry powder or granular formulas. Chelated liquids (such as those bound to EDTA or DTPA) are designed to keep individual elements soluble across a wide pH range, which is valuable in hydroponic systems running at pH 5.5–6.5. TM-7 uses a humic acid matrix rather than synthetic chelation, which means it performs best in soil and coco applications where pH is managed in the 6.0–7.0 range. Growers running purely recirculating deep water culture at strict hydroponic pH ranges may find chelated single-element solutions give more precise control over individual nutrients.

Compared to other humic acid products that contain only trace amounts of micronutrients as incidental ingredients, TM-7 has a fully guaranteed analysis for all seven elements. This matters because it allows growers to calculate actual mineral inputs per gallon rather than relying on undefined amounts. Products that list micronutrients only in the ingredient deck without guaranteed percentages offer no dosing reference point.

The dry format of TM-7 offers a practical shelf-life and storage advantage over liquid concentrates, which can precipitate or degrade over time once opened. A sealed 300g container stores for multiple grow cycles without quality degradation, making it cost-effective for small-scale operations that do not use large volumes of micronutrient concentrate per cycle. For larger-scale operations running continuous fertigation, a liquid micronutrient concentrate mixed into an injector dosing system may be more practical to handle at volume.

Compatibility

BioAg TM-7 is formulated to be compatible with most organic and synthetic fertilizer programs. The product label specifically notes this compatibility, but also recommends conducting a compatibility jar test before combining TM-7 with other additives in a shared tank mix. A jar test involves mixing small quantities of each product in a jar in the same proportion as the intended tank, then checking for precipitation, color change, or separation after 30 minutes.

The high pH of TM-7 in solution (9.0–11.0) should be factored into pH management. When added to a reservoir or spray tank, the solution pH will shift depending on the volume and buffering capacity of the base water. Always add TM-7 to water, not water to TM-7, and check the final pH of the mix before applying. For hydroponic use, pH-down adjustment may be needed after mixing to bring the solution back to the target range.

Application systems compatible with TM-7 include:

• Drip irrigation systems (at appropriate emitter sizes to prevent clogging from undissolved particles)
• Pivot fertigation lines
• Hand-held or backpack foliar sprayers
• Hydroponic reservoirs (recirculating and drain-to-waste)
• Manual soil drench and top-dress application

Growers running root-zone inoculant programs — for example, adding carbohydrate supplements to feed soil biology — will find TM-7’s humic acid content broadly compatible with biological approaches, as humic substances are naturally present in healthy soils and do not inhibit beneficial microbial populations.

Usage Guidelines

Specific application rates for BioAg TM-7 vary by crop type, growth stage, and application method. The product label is the authoritative reference for precise dosing, as rates differ between soil, coco, and hydroponic media. The following guidelines are based on the application methods listed on the product label.

General application methods and timing:

• At planting: Incorporate the dry granular form into the root zone or transplant hole. This provides an available micronutrient reserve as the plant establishes.
• Drip or pivot fertigation: Dissolve TM-7 in water at the label-specified rate. The 95–99% solubility ensures clean delivery through drip emitters. Flush lines with plain water after each fertigation cycle.
• Foliar application: Mix TM-7 at the label foliar rate in water, adjust pH to approximately 6.0–6.5 for best leaf absorption, and apply during the cooler part of the day to reduce evaporation and potential leaf burn. Avoid foliar applications during full flower to reduce the risk of bud contamination.
• Hydroponic reservoir: Add TM-7 to the reservoir after mixing base nutrients. Check EC and pH after addition. The alkaline nature of TM-7 will raise reservoir pH, requiring pH-down adjustment in most hydroponic systems.

Because trace element toxicity thresholds are lower than macronutrient thresholds, starting at the lower end of the label rate range and observing plant response before increasing dosage is advisable, particularly for sensitive crops or established hydroponic systems with existing trace element levels in the base nutrient mix.

How to Use BioAg TM-7

The following steps describe a general mixing and application process for fertigation and foliar use. Consult the product label for crop-specific rates.

1. Measure the dose: Using a calibrated scale, weigh out the label-recommended amount of TM-7 powder for the volume of water being prepared. Dry micronutrient powders are concentrated — even small errors in measurement can result in over-application, so use a scale rather than a volume-based scoop when precision matters.
2. Pre-dissolve in water: Add the measured TM-7 powder to a small amount of warm water (not hot) and stir until fully dissolved. Pre-dissolving prevents undissolved particles from reaching drip emitters or spray nozzles.
3. Add to main reservoir or spray tank: Pour the pre-dissolved TM-7 solution into the main water volume. Stir or circulate to distribute evenly.
4. Check and adjust pH: TM-7 has an alkaline pH (9.0–11.0) and will raise the pH of the mix. Test pH with a calibrated meter and adjust down to the target range for your growing system (typically 5.8–6.2 for hydroponics, 6.0–7.0 for soil and coco).
5. Perform a jar test if tank mixing: If TM-7 is being combined with other nutrients or additives, conduct a small-scale compatibility test before mixing the full batch. Mix proportional quantities in a jar and check for precipitation or separation after 30 minutes.
6. Apply at the recommended interval: Follow the product label schedule for frequency. Avoid applying trace element supplements at every watering unless the label specifies — micronutrients accumulate in the substrate and can reach toxicity levels with repeated overdosing.
7. Flush and clean equipment: After fertigating with TM-7, flush drip lines and spray equipment with clean water to remove any mineral residue that could cause blockages or cross-contamination in the next application.

For soil and coco applications where root health supplementation is part of the program, growers may consider pairing TM-7 with a dedicated root development product such as a root zone supplement to support the uptake of the micronutrients being delivered.

Sources & Further Reading