Lichen sclerosus and lichen planus are fairly common, non cancerous skin conditions. They can affect different parts of the body, but commonly affect the vulva. When they affect the skin of the vulva, theyâre known as vulval LS or LP.
A gap-graded soil is a soil that has an excess or deficiency of certain particle sizes or a soil that has at least one particle size missing. An example of a gap-graded soil is one in which sand of the No. 10 and No. 40 sizes are missing, and all the other sizes are present.
Soil Amelioration Sand (Coarse). Soil amelioration sand is a washed, hydrosized sand designed to STRI recommendations for the amelioration of soil. Soil amelioration sand is designed to create a well structured soil with air-filled soil pores, as recommended by STRI for sports pitches...but it works nicely for vegetables too!Gardening books often say 'use sharp sand'.oil amelioration is normally done by blending 2 parts sand to 1 part of soil, the aim being to arrive at a loam (for an exact blend for your particular soil, professional advice should be taken). Our soil amelioration sand has a pH of approximately 8.0.