- You cannot place a new order from your country (United States).
search
Hesi Pro-Line Phosphor 1l
Hesi Pro-Line Phosphorus Plus is a PK booster formulated exclusively for soil cultivation, designed to supplement Hesi Bloom Complex during the second half of the flowering phase. Phosphorus intensifies flower formation and drives DNA synthesis, while potassium accelerates nutrient transport to developing bloom sites. Not required before mid-bloom as Bloom Complex provides sufficient PK levels during early flowering. Excessive early PK supplementation can inhibit absorption of other essential minerals. Calibrated to soil-specific nutrient ratios with zero ballast residue. Dosage: 20 ml per 10 litres. For hydro and coco, use Hesi PK 13/14 instead. Order at plantandflower.be for fast shipping across Belgium.
Hesi Pro-Line Phosphor 1l – Targeted PK Booster for Soil-Based Flowering
Late-stage flowering is the most nutrient-demanding phase in a plant's lifecycle. DNA synthesis peaks, energy transfer accelerates and reproductive structures require concentrated phosphorus and potassium input. Hesi Phosphorus Plus is engineered as a targeted PK supplement for soil cultivation, working exclusively alongside Hesi Pro-Line Bloom Complex to meet the escalating PK demand that base nutrition alone cannot satisfy from mid-bloom onwards.
Why PK timing matters more than PK quantity
A common cultivation error is premature PK supplementation. During the first half of flowering, Bloom Complex delivers adequate phosphorus and potassium levels for the plant's requirements. Introducing additional PK too early creates an ion imbalance that can inhibit uptake of calcium, magnesium and trace elements, paradoxically producing deficiency symptoms despite high nutrient concentrations. Phosphorus Plus is specifically timed for the second half of flowering, when reproductive processes intensify beyond the capacity of base nutrition alone.
- Phosphorus for DNA backbone synthesis: each DNA molecule is surrounded by a phosphate backbone. Late-bloom DNA multiplication creates a sharp phosphorus demand spike that base feed cannot cover.
- Potassium for internal transport: accelerates sugar and nutrient translocation to developing flower sites, directly contributing to increased flower mass and density.
- Zero-ballast formulation: high-quality ingredients are fully absorbed by the plant, leaving no salt residue in the soil substrate.
Application protocol within the Hesi soil program
Add 20 ml of Phosphorus Plus per 10 litres of irrigation water alongside your Bloom Complex solution from mid-bloom onwards. Phosphorus Plus does not replace the base fertiliser – it supplements the PK profile to match escalating demand. Hesi soil nutrients are calibrated to soil-specific ratios that account for the substrate's natural capacity to store and gradually release nutrients. Build your complete soil program from Hesi TNT in the vegetative phase through Bloom Complex and Phosphorus Plus in flowering for a seamless nutritional progression.
Phosphorus Plus vs PK 13/14: the critical distinction
The Hesi range includes two PK boosters for two fundamentally different growing environments. Phosphorus Plus is exclusively for soil cultivation in combination with Bloom Complex. For hydroponic and coco substrates, PK 13/14 is the appropriate booster, formulated for unbuffered media where nutrient delivery dynamics differ entirely. The two products are not interchangeable. Support soil health throughout the intensive bloom phase with Hesi Power Zym, which enzymatically breaks down dead root material into reusable nutrients, maintaining substrate aeration and preventing anaerobic conditions that compromise root function during peak flowering demand.
Order Hesi Pro-Line Phosphorus Plus at plantandflower.be, your Belgian growshop with fast shipping across Belgium. The precision PK supplement for maximum flowering performance on soil.
What is the dosage for Hesi Phosphorus Plus?
Apply 20 ml of Hesi Phosphorus Plus per 10 litres of water from the second half of the flowering phase. Always add it alongside Hesi Bloom Complex, which remains the base fertiliser throughout bloom. Phosphorus Plus is a supplement that enhances the PK profile – it does not replace base nutrition.
What is the difference between Phosphorus Plus and PK 13/14?
Phosphorus Plus is the PK booster designed exclusively for soil cultivation, calibrated to work with soil's natural nutrient buffering capacity alongside Bloom Complex. PK 13/14 is formulated for hydroponic and coco substrates that lack buffering capacity. The two products have different compositions and are not interchangeable between substrate types.
Why should I wait until mid-bloom to use Phosphorus Plus?
Bloom Complex provides sufficient phosphorus and potassium during the first half of flowering. Premature PK supplementation creates ion competition that can inhibit calcium, magnesium and trace element uptake, potentially causing deficiency symptoms. The plant's PK demand only exceeds base feed levels when reproductive processes intensify in the second bloom half.
Can I use Hesi Phosphorus Plus on hydro or coco substrates?
Phosphorus Plus is formulated exclusively for soil cultivation. For hydroponic and coco systems, use Hesi PK 13/14 as the PK booster. This distinction is critical because the formulations account for fundamentally different substrate buffering properties – soil stores and gradually releases nutrients, while hydro and coco do not.
