Salt solutions as weed-killers?

Question

Please explain the reason salt solutions are often sprinkled in paths to kill weeds? Thanks.

Answer 1

It is all to do with osmosis. Water will move from an area of low salt concentration to a higher one. By putting down salt you are depriving the plants of water, so they literally die of thirst..

Answer 2

Salt affects plant growth by;

1) Reducing the uptake of important nutrients by the weed...primarily potassium (a very important nutrient for plant growth)

2) Reducing the uptake of water....leading to stress within the plant/weeds

3) Since salts are comprised of sodium chloride, excessive uptake of sodium by the plants results in chlorosis and burning of the leaves.... and when plants are without leaves, they're basically unable to survive

Hope this answers your question.

(certified professional crop consultant with a degree in plant science)

Answer 3

Hi, i suggest a great site with plenty of Issues related to your home and garden and everything around it. it also provide clear and accurate answer to many common questions.

http://garden.sitesled.com/

I am sure that you can get your answers in this website.

Good Luck and Best Wishes!

Answer 4

salt kills most plants