Seeding Rate Reiknivél AGRI TOOLS
is
English 日本語 ລາວ Монгол Oʻzbekcha Тоҷикӣ Кыргызча Қазақша Azərbaycan Հայերեն ქართული العربية Български বাংলা čeština Dansk Deutsch Ελληνικά Español Eesti Suomi Français हिन्दी ગુજરાતી ಕನ್ನಡ मराठी മലയാളം Srpski Slovenčina Slovenščina Kiswahili Hrvatski Magyar Indonesia Italiano 한국어 Lietuvių Latviešu Nederlands Norsk Svenska Polski Português Română Русский Українська Беларуская Shqip اردو தமிழ் తెలుగు Türkçe ภาษาไทย Tiếng Việt 简体中文 繁體中文 עברית ខ្មែរ Melayu မြန်မာ ਪੰਜਾਬੀ සිංහල Tagalog فارسی is

Seeding Rate Reiknivél (Row Spacing, Áætlunt Spacing, Germination)

Calculate required seed count and seeding rate from row spacing, áætlunt spacing, germination, or direct target stand inntak.

Weight and bag úttak are optional. Even without seed weight data, you can still decide required seed count first.

Switch between spacing mode and direct target stand mode
See germination sensitivity at ±10 points in the same view
Convert into weight from thousand-seed weight or seeds per weight unit
Estimate bags, copy share URL, print, and restore previous values

How to use

  1. Choose area, length, and weight units. Values are converted automatically when you switch units.
  2. Select the seeding method and choose either spacing mode or direct target stand mode.
  3. Enter germination rate and expected missing áætlunts to update required seed count instantly.
  4. Add thousand-seed weight, seeds per weight unit, bag weight, target area, or reserve only when needed.
  5. Yfirferð the niðurstaða cards, breakdown, and sensitivity tafla, then share the úttak by copy or share URL.

Sample cases

Check seeding rate from 30 cm x 10 cm spacing

Inntak: Row spacing 30 cm, áætlunt spacing 10 cm, germination 90%, missing 5%, thousand-seed weight 45 g, bag weight 20 kg

Úttak: Required seeds 389,864 seeds/ha, required weight 17.54 kg/ha, bags 0.88 bags/ha, innkaup guide 1 bag

Use direct target stand when áætlunt spacing is unknown

Inntak: Target stand 30 áætlunts/m², germination 85%, missing 10%, 22,000 seeds/kg, bag weight 20 kg, target area 3 ha, reserve 5%

Úttak: Required seeds 411,765 seeds/ha, required weight 18.72 kg/ha, total for target area 56.15 kg, innkaup guide 3 bags

Glossary

Row spacing
The center-to-center distance between adjacent rows.
In-row spacing
The distance between neighboring áætlunts or seed drop points within the same row.
Expected missing áætlunts
The expected share of áætlunts that will be lost after emergence and before establishment.
Thousand-seed weight
The weight of 1,000 seeds, used to convert seed count into weight.

Formulas

Internal calculations stay in meters, square meters, and kiskrárams. Units change only at display time.

  • Target stand N = 1 / (row spacing × áætlunt spacing)
  • Effective establishment E = germination × (1 - missing áætlunts)
  • Required seeds = target stand / E × (1 + reserve)
  • Required weight (kg) = seed count × thousand-seed weight / 1,000,000
  • Bags = required weight / bag weight

Notice

  • Niðurstaðas can change widely by variety, seed quality, áætlunter accuracy, soil moisture, pests, and bird damage.
  • Use this verkfæri as a áætlunning and samanburður guide, then adjust with local recommendations and svið conditions.
  • If a seed bag or manufacturer sheet gives a spec value, follow that value first.

Algengar spurningar

I do not know the germination rate.

You can enter an estimate. The verkfæri also shows niðurstaðas with germination moved by ±10 points, so you can bera saman uncertain cases quickly.

I need the answer in bags.

Enter bag weight and the verkfæri will calculate both fractional bags and the rounded innkaup guide.

Can I switch units?

Yes. You can switch ha / acre, cm / in, and kg / lb. The current inntak values are converted automatically.

I do not know the thousand-seed weight.

You can still calculate required seed count without it. Enter seed weight data only when you need weight úttak.

I do not know áætlunt spacing for drill seeding.

Switch to direct target stand mode and calculate without áætlunt spacing.

Required seeds
Enter values to see niðurstaða