Sand and Soil? What physical properties does sand add to soil? When growing plants, what are...

What physical properties does sand add to soil?

When growing plants, what are the pluses and negative of sand in your plant soil?
Which is cheaper? Using Round-Up or Black Plastic?
Answers:    Makes it lighter and airier. Usually also make more alkaline.
Best benefit is good drainage, biggest minus - ably, good drainage :) - you own to water more habitually. You also have to fertilize more otfen because: 1) sea that drains away also washes away the nutrients; 2) near are less nutrients to get going with since sand is a pure inorganic event (silica).