Some fine washed silver sand is flung into the joint to act as a flux, to reduce excess oxygen, and then the work is hauled out again in a another shower of white sparks.
Plants were grown in washed silver sand in 1.0 l capacity pots.
With 1200 miles of coastline to explore, you'll find wave-battered rocks and the softest silver sand.
The remaining 10 plantlets from each position were ‘sown’ (pedicel down) in seed trays containing washed silver sand, and covered with a sheet of glass to prevent excessive water loss.
Three parts of soil were mixed with one part of silver sand, followed by incorporation of a nutrient mixture and N-labelled ammonium sulfate at 5 ppm.