高羊茅的播种量是多少？

新播每千平方英尺 6–8 磅，补播 3–4 磅。它的种子较大，因此达到同样粒数所需重量更多。

早熟禾为什么用量少得多？

因为种子大小。草地早熟禾每磅约 200 万粒，而高羊茅只有 23 万粒，而且它还能靠根状茎横向蔓延填补空隙。

什么时候播草籽最好？

冷季型草在夏末到初秋，暖季型的狗牙根和结缕草在春末到初夏。冷季型草春播通常竞争不过马唐等杂草。

草籽会撒得太多吗？

会，而且是常见错误。过密的地块出苗后会因竞争而变稀，最终留下更弱、根系更浅的植株。

草籽多久发芽？

黑麦草 5–10 天，高羊茅 7–14 天，草地早熟禾 14–30 天。含黑麦草的混播看起来先见效，是因为黑麦草出得早。

草籽计算器

按所选草种的播种量以及新播或补播方式，计算草坪需要多少草籽。

公式与数据最后核对于 2026年8月6日 — Cosyslabs

输入

草坪长度(ft)

草坪宽度(ft)

草种

新播还是补播？

每磅单价（选填）($)

Result

Seed needed

12.0 lb

Area

1500 ft²

Rate used: 8.0 lb per 1,000 ft²
Purpose: New lawn
Starter fertiliser: 1.5 bags (per 1,000 ft²)

Diagram

Estimates only. Verify with a licensed contractor or supplier before purchasing. Rough Estimator! is not responsible for shortages, overages, or material variances. See our methodology for formulas and sources.

公式

磅数 = (面积 ft² ÷ 1,000) × 每千平方英尺播量   ·   补播用量减半

参考资料

Measure what the tool asks for
This calculator works from 草坪长度 in ft, 草坪宽度 in ft and 每磅单价（选填） in $. Measure the finished area you are covering, not the material — an estimate is only as good as the dimensions you feed it.
What it does with those numbers
磅数 = (面积 ft² ÷ 1,000) × 每千平方英尺播量 · 补播用量减半 Every figure on the page comes out of that one expression, so you can check it by hand.
Choosing a 草种
提示：播量差异极大，因为种子大小差异极大。早熟禾每磅约 200 万粒，高羊茅只有 23 万粒。
Where the numbers come from
The constants are taken from Penn State Extension — Lawn establishment and seeding rates, University of Maryland Extension — Seeding rates by grass species and USDA NRCS — Turf establishment guidance, linked in full below. If a figure here disagrees with your supplier's spec sheet, use the spec sheet — it describes the product you are buying.
What this will not tell you
This is a material takeoff, not a bid. It does not price labour, permits, delivery, equipment hire or site preparation, and it assumes a straightforward layout. Complex cuts, difficult access and awkward shapes all cost more than the geometry suggests.

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Don't forget

起苗肥
稻草或播种覆盖布
种植土
草坪滚筒

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常见问题

用面积除以 1,000 平方英尺再乘以草种播量。140 平方米的高羊茅草坪新播约需 5.4 公斤。

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Cite this page

Cosyslabs. (2026). 草籽计算器. Rough Estimator!. https://roughestimator.com/zh/grass-seed-calculator

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