In any case, the world-class agriculture in the delta employs advanced seed technology and chemical fertilisers, and does not depend on river-borne sediment of negligible nutrient value.

ECONOMIST: Letters

In his grazing school and in demonstrations, he asks farmers to keep their animals in a given area for only a few days, then move them to a section where the grass is eight inches tall and has reached its highest nutrient value.

NEWYORKER: Testing, Testing

It also ignores the considerable value of services derived from the physical, biological, and chemical processes in natural ecosystems, including nutrient recycling, flood risk reduction, water cleaning and storage, climate regulation, and maintenance of biodiversity.

FORBES: Holiday Shopping Rebellion: Anticonsumerism and Passing "Peak Stuff"