Марҳилаи рушди GDD Абзорҳои кишоварзӣ
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Ҳисобкунаки марҳилаи рушди GDD

Enter a budbreak or bloom date, add daily temperature data, and get the current growth stage and harvest forecast in one place.

No weather API is required. You can paste CSV, upload a file, or type rows by hand, then edit the stage profile to match your cultivar.

Бо CSV, боркунии файл ё сатрҳои дастӣ кор мекунад
Цельсий ва Фаренгейтро дастгирӣ мекунад
Ҷадвалҳои марҳила комилан таҳриршаванда мемонанд
Ҳолати мубодилашаванда танҳо дар браузер мемонад

Фарзияҳои ҳисоб

  • GDD thresholds vary by cultivar, region, tree age, vigor, crop load, and pruning. Edit the template values instead of using them as-is.
  • Пешгӯии ҷамъоварӣs are estimates based on recent daily GDD averages. They can drift when temperatures swing sharply.
  • If your CSV has gaps, fill them before making decisions from the result.

Формати воридоти CSV

The parser accepts comma, semicolon, or tab-delimited files and also tolerates decimal commas.

  • `date` is required. Accept `tmean`, or `tmin/tmax`, or `gdd`.
  • The parser auto-detects `comma`, `semicolon`, or `tab` delimiters.
  • Decimal values can be written as `12.5` or `12,5`.
  • A `gdd` column overrides temperature columns for that row.
  • `YYYY-MM-DD` is the recommended date format.

Чӣ гуна истифода бурдан

  1. Enter the reference event and date. Choose budbreak, full bloom, or a custom label.
  2. Set the temperature unit, Усули GDD, base temperature, and upper threshold if needed.
  3. Часпондан CSV, upload a file, or add daily rows by hand.
  4. Edit the stage profile, then review the current stage, next stage, and harvest forecast.
  5. Copy the result or share the core settings with a URL.

Намунаҳо

From budbreak to the current stage

Воридот Санаи ибтидоӣ 2026-03-15, Celsius, base temperature 10°C, daily mean CSV, stage table: Budbreak 0 / Green tip 80 / Full bloom 160 / Petal fall 240 / Fruit set 320 / Harvest 500

Натиҷа Гирдоварии GDD 400.0 °C·day, current stage Fruit set, harvest forecast 2026-04-08

From full bloom to a harvest forecast

Воридот Санаи ибтидоӣ 2026-04-08, Fahrenheit, base temperature 50°F, upper threshold 86°F, semicolon CSV, forecast from the last 7 days

Натиҷа Гирдоварии GDD 286.0 °F·day, current stage Petal fall, harvest forecast 2026-07-02

Формулаҳо

  • Daily GDD = max(0, min(input temperature, upper threshold) - base temperature)
  • Daily GDD = max(0, ((clipped Tmin + clipped Tmax) / 2) - base temperature)
  • Гирдоварии GDD = sum of daily GDD
  • Days to the next stage = next threshold - current cumulative GDD
  • Пешгӯии ҷамъоварӣ date = latest date + ceil(remaining GDD / recent average GDD)

Луғат

GDD

Growing degree days, or the accumulated effective heat used for growth models.

Ҳарорати поя

Heat below this threshold does not count toward GDD.

Ҳади болоӣ

A cap that prevents unusually hot days from contributing too much.

Ҳодисаи ибтидоӣ

The starting point for accumulation, such as budbreak or full bloom.

Growth stage

A milestone tied to a GDD threshold.

Forecast window

The number of recent days used to estimate future progress.

Саволҳои зиёдтар додашаванда

Do I need a weather API?

No. CSV or manual input is enough.

Can I use semicolon CSV from Excel?

Yes. Delimiters are auto-detected and decimal commas are accepted.

Should I use budbreak or full bloom?

Choose the reference your cultivar model uses. You can rename it freely.

How is the harvest forecast calculated?

The remaining GDD to the harvest threshold is divided by the recent daily GDD average.

Are the thresholds fixed?

No. The template values are only examples and should be edited for your cultivar and region.

Шаблони марҳила

  • Load the generic orchard template first, then edit it for your cultivar and region.
  • The stage names are editable. Keep the threshold values in ascending order.
  • Use `role=harvest` for the final row when you want the harvest forecast to stop there.