I just received my lawn soil test results for this year and my K levels are still way down, around 200 when I am looking for 400 plus. My question is can I safely apply 4 pounds of potash (murate of potash) per 1,000 sf without causing lawn damage? This would be about 2.4 pounds of actual ingredient. Could I repeat the application later in the year around Thanksgiving? And wow the price of potash. Thanks in advance for your help.