Free Agriculture & Garden Calculator Widgets
Seed rate, plant spacing and population, fertiliser rate, irrigation, crop yield and livestock feed widgets built on extension-service methods.
Try them live
Real agriculture & garden widgets - exactly what your visitors would see.
The live example loads when it scrolls into view.
Who these are for
Farmers, agronomists, agricultural extension services, seed and fertiliser dealers and gardeners.
Common uses
- A seed-rate or plant-spacing calculator on a seed company's site
- A fertiliser rate converter in an extension bulletin
- An irrigation or feed estimate in a farm-management course
How embedding works
Pick a widget, set the theme and size, copy one line of HTML and paste it into your page. It runs in its own frame, so it cannot clash with your site's styles, and it resizes itself if you use the loader.
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Seed rate in kg/ha or lb/acre from target plants, thousand-seed weight and expected losses.
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Plants per bed, per m2 and per hectare for square, triangular or row spacing - or the reverse.
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How much N-P-K product meets a nutrient rate, plus the other nutrients and bags it brings.
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Weekly irrigation water and run time from reference ET, a FAO-56 crop coefficient and rainfall.
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Pre-harvest corn yield from ear counts and kernels, or any crop's production and revenue.
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Dry-matter and as-fed feed per head, herd totals for a period and the daily feed cost.
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How to add a widget
Open a widget, choose the theme, width and style, check the live preview, then copy the code. Paste it into an HTML or "Custom code" block on your site - step-by-step instructions for each platform.