NPK 19-19-19+TE

NPK 19-19-19+TE carries its nitrogen entirely as nitrate and ammonium, with no urea, so the feed behaves predictably in the tank and in the root zone. It supplies nitrogen, phosphate and potassium in equal balance and is fully water-soluble, dissolving to a clear solution with an EDTA-chelated package of iron, manganese, zinc, copper, boron and molybdenum. The grade suits growers who want tight control of nutrient-solution behaviour, especially in soilless, recirculating and precision fertigation systems where nitrogen form and solution stability matter. Its even 1:1:1 ratio keeps the feed balanced, while the urea-free nitrogen profile is what sets it apart for controlled, precision feeding.

Key Benefits

• Delivers balanced nutrition without urea. All nitrogen is supplied as nitrate and ammonium, giving predictable uptake and avoiding the conversion lag and biuret concerns of urea-based feeds.
• Keeps nutrient solutions clean and predictable. Fully water-soluble, it dissolves to a clear solution that suits precision, recirculating and soilless systems where solution stability is critical.
• Splits nitrogen between fast nitrate and root-held ammonium. With no urea, the near-even nitrate and ammonium profile gives immediate uptake alongside a steadier root-zone-held fraction, and fully predictable behaviour for precision systems.
• Supports rooting and energy transfer. The phosphate fraction feeds phosphorus for root growth and the plant’s energy metabolism.
• Supplies trace elements with defined roles. The EDTA-chelated package keeps iron and manganese available for chlorophyll formation and photosynthesis, zinc for growth-hormone synthesis and shoot development, copper for enzyme and defence function, boron for pollination, fruit set and cell-wall strength, and molybdenum for nitrogen metabolism, all held soluble and root-available across typical solution pH.

How It Works

NPK 19-19-19+TE is a fully water-soluble mineral fertiliser that dissolves to a clear solution and delivers nitrogen, phosphate and potassium as plant-available ions, taken up through the roots in fertigation or through the leaf in foliar application. Because the nutrients are already in mineral, ionic form, the crop uses them without further breakdown, so the ratio in the tank is what shapes the feed the plant receives at each stage.

Its nitrogen is carried about 55% as nitrate and 45% as ammonium, with no urea, a split built for predictable feeding. Nitrate is the larger share, taken up immediately and, as an anion, drawn in with cations while keeping uptake fast. The large ammonium fraction is intentional: ammonium is held around the roots and acidifies the rhizosphere, which improves the uptake of phosphorus and of trace elements such as iron, manganese and zinc, though it also means the grade has a real acidifying pull that needs managing. Leaving urea out removes both the biuret risk to leaves and the conversion step urea needs before uptake, so the nitrogen behaves predictably from the moment it is applied, which makes the grade easiest to manage in substrate and precision fertigation where pH is watched. The EDTA-chelated micronutrients stay soluble and root-available across the mildly acidic pH this profile holds.

When to Use NPK 19-19-19+TE

Use it as a controlled balanced feed wherever nitrogen behaviour and solution cleanliness need to be tightly managed.

• NPK 19-19-19+TE suits balanced feeding from establishment through active growth in substrate-grown and precision fertigation systems.
• It works as a general-purpose grade in protected crops where a urea-free nitrogen profile is preferred.
• It supports young plants and transplants that need even, predictable nutrition before a stage-specific switch.

Choose it over a urea-containing balanced grade when solution stability and controlled nitrogen behaviour matter more than maximum nitrogen concentration; move to a stage-specific ratio when demand shifts toward roots, flowering or fruit.

Its large ammonium fraction gives a moderate acidifying pull on the root zone, so it is best used where substrate pH is actively managed rather than in pure recirculating hydroponics.

Application

Rates scale with crop, stage and system. As a starting point, dissolve at 1 to 2 g/L for constant-feed fertigation, dropping to 0.5 to 1 g/L for seedlings and young plants and rising toward 3 g/L for established heavy feeders at peak demand, keeping solution EC within the crop’s tolerance. For foliar use stay near 1 to 2 g/L and spray in the cooler parts of the day.

The table below covers the crops and stages this grade suits, with starting rates to fine-tune to local water quality and the crop’s salinity tolerance. Fertigation figures are concentrations for constant feeding in the irrigation water; foliar figures are spray concentrations.