Atami B’cuzz Soil A&B 5L - Two-Part Base Nutrient for Soil

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£25.70

Atami B'cuzz Soil A&B 5L is a concentrated two-part mineral base nutrient developed specifically for plants grown in soil and soil-based substrates, providing the essential nutrition required throughout the complete growth and flowering cycle.

Designed as the nutritional foundation of the B'cuzz soil feeding programme, Soil A&B supplies a broad range of essential mineral nutrients to support strong, healthy plant development from vegetative growth through flowering and ripening.

The formula is divided between two concentrates because certain nutrients can react with each other when stored together at high concentration. Soil A and Soil B should therefore never be mixed together in concentrated form. Each component should be added separately to water or nutrient solution.

Soil A provides an NK 3-3 W/W analysis, while Soil B provides PK 3-4 W/W. Together they form the complete B'cuzz Soil base nutrient programme and can be adjusted according to the crop's stage of development and the nutrient content already present in the substrate.

This 5L A&B set provides 5 litres of Soil A and 5 litres of Soil B, giving growers 10 litres of concentrated two-part base nutrient in total.

Why choose Atami B'cuzz Soil A&B?

  • Complete two-part base nutrient - provides the core mineral nutrition required throughout the crop cycle.
  • Specifically formulated for soil - developed for plants grown in soil and soil-based potting substrates.
  • Suitable throughout growth & flowering - one base nutrient system can be used from vegetative development through flowering and ripening.
  • Soil A: NK 3-3 - provides nitrogen and potassium together with other important elements.
  • Soil B: PK 3-4 - complements Part A with phosphorus and potassium for balanced plant nutrition.
  • Supports strong plant development - formulated to provide young and established plants with concentrated mineral nutrition.
  • Adjustable feeding strength - application can be adapted to crop requirements and the existing fertilisation level of the substrate.
  • Growth & flowering flexibility - Atami allows the balance of A and B to be adjusted according to the crop stage.
  • Indoor & outdoor cultivation - suitable for soil-grown crops cultivated in controlled environments or outdoors.
  • Suitable for many crops - can be used with vegetables, fruiting plants, herbs and ornamental species.
  • Compatible with the wider B'cuzz programme - can form the base for programmes using Atami stimulators, boosters and flowering additives.
  • Professional 5L format - suitable for larger growing areas and growers regularly preparing soil nutrient solutions.

What is B'cuzz Soil A&B suitable for?

B'cuzz Soil A&B is designed specifically for soil and soil-based growing substrates. It can be used throughout the complete crop cycle rather than requiring separate base fertilisers for vegetative and flowering growth.

Atami gives examples including vegetables, fruits and herbs such as courgettes, beans and thyme, together with indoor and container-grown ornamental plants including Delphinium and ornamental grasses.

Because soil substrates vary considerably in their existing nutrient content, the appropriate dosage depends partly on whether the crop is planted into a lightly fertilised or heavily fertilised substrate.

A nutrient-rich potting compost requires less additional base fertiliser than a lightly fertilised substrate. The grower should therefore consider both crop demand and the starting nutrient charge of the growing medium.

Why does Soil Nutrition come in A & B parts?

Two-part nutrients are separated for chemical stability. At the concentration found inside the original bottles, some mineral elements can react with one another and form compounds that are less available to plants.

Separating the formulation into Soil A and Soil B allows these nutrients to remain stable during storage. Once each concentrate is sufficiently diluted in water, the two parts can safely form the complete nutrient solution.

For this reason, never pour concentrated Soil A directly into concentrated Soil B.

Add Part A to the required volume of water and mix thoroughly. Part B can then be added separately and mixed into the diluted nutrient solution.

Soil A NK 3-3 & Soil B PK 3-4

B'cuzz Soil A and B divide the crop's mineral nutrition between two complementary concentrates.

Soil A has an NK analysis of 3-3 W/W. Atami's technical information identifies Part A as supplying nitrogen, calcium and micronutrients alongside its potassium contribution.

Soil B has a PK analysis of 3-4 W/W, providing phosphorus and potassium alongside additional micronutrients to complete the base feeding programme.

Nitrogen is particularly important during active vegetative development, while phosphorus and potassium become increasingly important as plants progress through reproductive growth, flowering and fruit development.

Atami therefore notes that growers can adjust the relative dosage, using slightly more A during vegetative growth or slightly more B during flowering where crop requirements justify doing so.

How to use Atami B'cuzz Soil A&B

The correct application rate depends on the nutrient content of the growing substrate.

For heavily fertilised potting compost, Atami recommends 1-3ml of Soil A and 1-3ml of Soil B per litre of water.

For lightly fertilised potting compost, Atami recommends 1-5ml of Soil A and 1-5ml of Soil B per litre of water.

For example, at 3ml/L of each component, a 10L nutrient solution requires 30ml A + 30ml B, a 50L reservoir requires 150ml A + 150ml B and a 100L reservoir requires 300ml A + 300ml B.

Add Soil A to the water first and mix thoroughly. Add Soil B separately and mix again. Never combine the undiluted A and B concentrates directly.

Nutrient demand changes according to crop species, plant size, substrate, environmental conditions and light intensity. Start with an appropriate concentration for the substrate being used and adjust according to plant response and measured EC.

Using Soil A&B through the crop cycle

One of the main advantages of B'cuzz Soil A&B is that it can provide the base nutrition throughout growth, early flowering, flowering and ripening.

Atami's current soil grow guide varies the amount of A&B according to crop stage rather than treating one dosage as correct throughout the entire cycle. This allows nutrient concentration to follow the changing requirements of the plant.

The base nutrient can then be supplemented with appropriate products from the wider Atami programme where required, including root stimulators, bloom stimulators, silicon, CalMag and flowering additives.

These additional products do not replace Soil A&B. The A&B combination remains the nutritional foundation of the feeding programme, while stimulators and additives perform more specialised functions.

Atami B'cuzz Soil A&B 5L product details

Brand Atami
Range B'cuzz
Product Soil A&B
Product type Two-part mineral base nutrient
Pack size 5L Soil A + 5L Soil B
Total concentrate 10L
Soil A analysis NK 3-3 W/W
Soil B analysis PK 3-4 W/W
Heavily fertilised substrate 1-3ml/L Soil A + 1-3ml/L Soil B
Lightly fertilised substrate 1-5ml/L Soil A + 1-5ml/L Soil B
Suitable substrate Soil & soil-based growing media
Crop stages Growth, flowering & ripening
Indoor cultivation Yes
Outdoor cultivation Yes
Important mixing instruction Never mix concentrated Soil A & Soil B directly together. Dilute in water.

Atami B'cuzz Soil A&B 5L FAQs

What is Atami B'cuzz Soil A&B?

B'cuzz Soil A&B is a concentrated two-part mineral base nutrient formulated specifically for plants grown in soil and soil-based substrates. Together, Parts A and B provide the essential base nutrition required throughout the crop cycle.

Does the 5L B'cuzz Soil A&B set contain 5L of each part?

Yes. The set contains 5L of Soil A and 5L of Soil B, providing 10 litres of concentrated base nutrient across the two components.

What is the NPK of Atami Soil A&B?

The two components have separate analyses. Soil A is NK 3-3 W/W and Soil B is PK 3-4 W/W. They are designed to work together after dilution in water.

Why are Atami Soil A and B separate?

Certain mineral nutrients can chemically react when stored together at high concentration. Separating them into A and B components maintains stability until they are diluted into the nutrient solution.

Can I mix Soil A and Soil B together before adding water?

No. Never mix the concentrated A and B nutrients directly together. Add each component separately to water and mix thoroughly.

How much Atami Soil A&B should I use?

For heavily fertilised potting compost, Atami recommends 1-3ml/L of A and 1-3ml/L of B. For lightly fertilised potting compost, the range increases to 1-5ml/L of each component. Adjust the final concentration to crop requirements and EC.

Can I use B'cuzz Soil A&B throughout flowering?

Yes. Soil A&B is a complete base nutrient designed for use throughout the growth cycle, including vegetative growth, flowering and ripening.

Do I need separate grow and bloom base nutrients?

Not with this system. B'cuzz Soil A&B can be used throughout the complete crop cycle. Atami allows the relative amounts of A and B to be adjusted according to the plant's stage and requirements.

Can I use B'cuzz Soil A&B with Bloombastic?

Yes. Soil A&B provides the base nutrition while Bloombastic is a specialised flowering and ripening additive. Atami includes the products together in its official soil feeding programmes.

Can I use B'cuzz Soil A&B with Atami stimulators?

Yes. Soil A&B can form the base of a wider B'cuzz programme incorporating suitable root, bloom and silicon products according to crop stage and requirements.

Is Atami Soil A&B suitable for coco?

Soil A&B is specifically formulated for soil-based substrates. For plants grown primarily in coco coir, Atami produces the dedicated B'cuzz Coco A&B formulation.

Is Atami Soil A&B suitable for hydroponics?

Soil A&B is intended for soil-based substrates. Atami produces B'cuzz Hydro A&B specifically for hydroponic growing systems.

Can B'cuzz Soil A&B be used with pre-fertilised compost?

Yes, but the existing nutrient charge must be considered. Atami specifies a lower 1-3ml/L range for heavily fertilised compost and allows up to 1-5ml/L for lightly fertilised compost.

Can B'cuzz Soil A&B be used indoors and outdoors?

Yes. Atami specifies Soil A&B for both indoor and outdoor cultivation where plants are being grown in suitable soil-based substrates.

What plants can I feed with Atami Soil A&B?

It can be used with a wide range of soil-grown vegetables, fruiting plants, herbs and ornamentals. Atami gives examples including courgettes, beans, thyme, Delphinium and ornamental grasses.

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£25.70