| 摘要 |
<p>A composition for a nutritive layer for grass sward is described, comprising, in percentage by volume, from 40 to 80 % of volcanic gravel and from 0.8 to 60 % of green vegetable compost. The composition preferably also contains up to 15 % by volume of pumice in the form of granules and 2 10-3 % - 3 10-3 % by volume of bone meal. A method for making grass sward using the above described composition is also described.</p> |
