Tillage radish

Snyder's say 4lb per acre or 4 x 454 or 1816 grams per acre
0.04169 gr per sq ft
this works out to 2 seeds per sq ft or 8" apart
1 gram covers 24 sq ft

20ml container weighs 20 gram
should seed 400-480 sq ft

9 grams =375 seeds
42 seeds per gram

got about 5 lb Tillage radish from Snyders