Phosphate is the largest single line in Pakistan's fertilizer import bill, bought in dollars at world prices. It then goes onto calcareous, alkaline ground — the most hostile soil there is for phosphorus. Applied P binds with free calcium and converts into forms the root cannot reach. The nutrient is paid for at the port and lost in the top nine inches.
The VAN NP range is engineered against that specific reaction — not a higher analysis, but phosphate that stays available for longer in the conditions we actually farm.
combinations screened. Three came through: 6-32, registered and selling as Green Phosphate; 5-40 and 8-38, which sit in VAN’s formulation library under neutral codes rather than as VAN brands. That winnowing is what product development actually looks like, and it is why we can tell you what each grade is for rather than only what is in it.
Three realities every Pakistani farmer lives with — whether they know the chemistry or not.
Over 95% of Pakistani cultivated soils are deficient in organic matter. Most are calcareous and alkaline — saturated with free calcium carbonate and running at pH 7.5–8.5. This is some of the most hostile ground in the world for applied phosphorus. Yet the fertilizers sold here were formulated for acid and neutral soils where none of this applies.
Applied phosphate hits that free calcium and precipitates — locking into compounds the root cannot reach. In a wheat trial on Pakistani calcareous soil, phosphorus use efficiency fell from 378 to 81 kg grain per kg P as rates increased — a 79% collapse. The farmer pays for the nutrient. The crop doesn’t see it.
Pakistan applies approximately 160 kg of fertilizer per hectare — above the world average of 154. Yet look at what comes back: sugarcane at ~65 t/ha against 80–120 in comparable irrigated countries, cotton at ~566 kg/ha against 1,500+ in China and Brazil, wheat at ~3.1 t/ha against a world average of 3.5. The inputs go on. The soil takes them. The crop doesn’t get them.
Source · Organic matter deficiency: Akram, Hussain & Mansoor (2014), Universal Journal of Agricultural Research 2(7):242–249 (Muzaffargarh, 3,325 composite samples). Phosphorus use efficiency: Abbas, M., Irfan, M. & Shah, J. A. (2023), Eurasian Journal of Soil Science 13(1):79–88. Fertilizer rate: World Bank / FAOSTAT (2023). Sugarcane yield: FAOSTAT via IntechOpen (2020–21). Cotton yield: PBS / FAOSTAT. Wheat yield: FAOSTAT (2023).
Four things, developed together. We describe what each achieves rather than how it is made — the formulations are the subject of patent applications and are not published.
We do not treat release as a by-product of whatever the granule happens to do. The release curve of each grade is characterised and formulated to, so nutrient availability can be matched to a crop stage rather than left to chance in the soil.
The coating technology VAN developed for nitrogen has been carried across to phosphate. A physical barrier between the granule and the soil solution slows the moment of first contact — which is when fixation is fastest, because the fertilizer is at its most concentrated and most exposed.
One granule, two release behaviours: a fraction available immediately for establishment and early root development, and a fraction held back and released later in the crop cycle. A single application instead of an early flush followed by a hungry mid-season.
The distinctive one. Rather than only protecting the phosphate, the formulation gives the free calcium in the soil something else to react with first — occupying it before it can reach the phosphate and precipitate it out. The fixation reaction is intercepted rather than merely delayed.
Each grade in the range carries more than one of these. Which combination applies to which grade is set out in the technical dossier rather than here.
Different jobs, not different sizes of the same job. Only the 6-32 carries a VAN brand; the other two are held as neutral codes and are available for licensing or own-brand manufacture.
| Grade | What it is for | Technologies | Status |
|---|---|---|---|
| NP 6-32 | The basal workhorse — high phosphate with enough nitrogen to drive early establishment, placed at or before sowing. Sold as Green Phosphate, humic-coated and acidic — this grade is already registered and in the market. | Acidic-microenvironment granulation with a humic seal, to slow phosphate fixation at the granule surface | In market as Green Phosphate |
| NP 5-40 library code NP-540 |
Solves a timing problem. The highest phosphate loading in the range, carried in two fractions: one available immediately for the seedling root, one still releasing when demand peaks. A conventional basal phosphate delivers its whole load into the window where fixation is fastest and the crop is smallest. | Dual release from a single placement. Low nitrogen by design — a phosphorus product with enough nitrogen to work with, not an NP blend balanced for both | Formulation library — validated, spec locked |
| NP 8-38 + sulfur library code NP-838S |
Solves a chemistry problem. Rather than timing the phosphate around fixation, this grade is formulated to resist the reaction itself — built for the calcareous alkaline ground that fixes a large share of applied P. | Sulfur acidifies the granule’s immediate soil environment; alongside it, calcium-resistant agents hold soil calcium off the phosphate for longer. The release is slow throughout rather than split in two. The sulfur loading is not published | Formulation library — validated, spec locked |
The 6-32 grade is not a prototype. It is Green Phosphate, registered and selling under its own brand — the same formulation, presented here as the established member of the range. The other two are not VAN brands and are not in registration: they are validated formulations held in the library under neutral codes, for a partner to take under their own name. If you already buy Green Phosphate, you are already using this technology.
Both library grades are open to a partner who wants them under their own name.
NP-540 and NP-838S are carried in VAN’s formulation library, where they sit alongside the rest of the neutral codes with their stage, their forms and their pack sizes. Both are made in granular, powder and crystalline form, in 50 kg and 1000 kg packs. The analyses are recorded on VAN’s own register; the analysis report and specification sheet come with the dossier.
No trial figure is published against either grade, because none has been signed off — the same rule that applies to every other code in that library. Both descriptions above are of mechanism, not of measured outcome. The formulation detail is released under NDA through the partner dossier.
Phosphate is bought on its numbers. Two bags with the same P₂O₅ percentage are treated as the same product at the same price per unit. On acid or neutral soil that is roughly fair. On calcareous alkaline ground it is not, because what determines the return is not how much phosphorus went on but how much was still available when the root arrived.
That is why placement already matters so much on these soils: band-placed phosphorus consistently outperforms broadcast phosphorus, for the specific reason that broadcasting maximises contact between fertilizer and fixing soil. The same logic, applied at the granule instead of at the spreader, is what this range is.
The commercial consequence is that the right comparison between phosphate products is delivered phosphorus per rupee — not P₂O₅ per rupee. Those are the same number only in soil that does not fix phosphorus, and we do not farm that soil.
The grades are available for licensing and for own-brand manufacture, with the formulation detail released under NDA through the partner dossier.
