At backyard of my house, unwanted weeds were growing very fast, and become uncontrollable. Mali sprayed the entire lawn and within two weeks, all the grass including weeds turned yellow. After that some green patches have started to appear. But there are dry yellow remains still there. What to do now?


Should I water the lawn extensively now?
Should I remove the previous remains?
Someone told me to add 10 KG of urea (in 35x35 feet lawn).
Please advise!