Sentences with phrase «soils of valuable nutrients»

Not exact matches

In this way the forest protected the soil, the plants, and the wild animals which, together with fish and shellfish, provided the aborigines with valuable sources of energy and nutrients (Hall, 122 - 124).

Composting returns valuable nutrients to the Earth's soil, making the pods a key part of Tayst» ™ s goal of being a zero footprint company, from product to packaging.

The idea is that, over time, the mulch will break down anyway, but with added nutrients from human urine it will not just provide organic matter to the soil, but a dose of valuable nutrients with no need for turning the compost heap or spreading out the end result.

But it seems pretty clear that small - scale urban farm biogas digestion has great potential for gleaning energy from urban waste streams, recapturing valuable nutrients and returning them to the soil, and of course keeping rotting matter out of landfills7mdash; preventing both methane emissions and leaching in the process.