Calculates fertilizer doses for a target solution, with the irrigation water and recirculated drainage contribution deducted. Corrects pH with acid or base, compares target and calculated solution, and distributes the products in stock tanks or injectors according to their compatibility.
Irrigation water contribution, recirculated drainage and target solution in mmol/L or mg/L.
Features
- Water and return: Ions from the irrigation water and the recirculated drainage, in mmol/L or mg/L.
- pH, acid and bases: Acid dose for the pH set point, base to raise pH and biocide injected into the line.
- Calculation methods: Automatic fit to targets, fit with an EC cap, manual recipe, limits and tolerances, minimum N and P, greenhouse sequence, minimum cost and minimum sodium and chloride load.
- Target against calculated: Difference ion by ion, target correction before calculating and chemical check of the solution.
- Tanks: Assignment of fertilizers to tanks with a compatibility matrix, concentration per tank, bags and distribution templates.
- Injectors and irrigation plan: Distribution in injectors, layout of one load and irrigation plan.
- Sets and report: Saved fertilizer sets, preparation and injection recipe and report.
Inputs
Irrigation water analysis and, with recirculation, drainage analysis. Target solution in mmol/L or mg/L, from a saved programme or typed in. Catalogue fertilizers, pH set point and irrigation system.
Results
Dose per fertilizer and solution composition. Target against calculated solution, ion by ion, and chemical check. Distribution in tanks or injectors, load layout, irrigation plan and preparation and injection recipe.
Calculation conditions
The grades of each product are those on its catalogue datasheet. The acid dose is calculated on the irrigation water, before fertilizers are distributed in tanks. The distribution checks solubility and compatibility of each product with the tank volumes entered.