Burying weed seed by tilling the soil increases longevity of weed seeds in the seedbank. Applicable on select styles size. The main difference between male and female cannabis plants is that male cannabis plants do not yield buds, whereas female cannabis plants do.  Source: <a href=http://witalina.pl/from-seed-to-smoke-a-cannabis-seed-buying-extravaganza/>http://witalina.pl/from-seed-to-smoke-a-cannabis-seed-buying-extravaganza/</a>