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Before Ramon Barba discovered the value of potassium nitrate on mangoes, mango trees producing fruits only once a year. Ramon Barba, a professor at the institute of Biological Science at UP Los Baños, found that mangoes can be induced to flower all year round by spraying mango trees with Potassium nitrate, the Philippines became a leading exporter of mangoes and mango products. Barba first experimented on a single hand-sprayed application of potassium nitrate in the '70s. In the first week of his experiment, buds emerged, then flowers in the second week. Fruits came out within four months. For the experiment, Barba spent less than P500. Barba's research showed that if one percent of potassium nitrate solution is applied on mango trees for 5 years, new shoot production and leaf sizes would be significantly reduced. The normal recommendation is one percent potassium nitrate solution. Barba pointed out that if the tree does not flower after potassium nitrate application,

Have you encounter print queue for at least 5 to 10 mins but it doesn't print you may use this on your command prompt. START>CMD administrator> type this code net stop spooler del “%systemroot%\system32\spool\printers\*.shd” del “%systemroot%\system32\spool\printers\*.spl” net start spooler or you may use at batch file by opening a notepad type bellow code then save it to print.bat @echo off echo Stopping Spooler echo. net stop spooler echo Deleting jobs in print queue... echo. del “%systemroot%\system32\spool\printers\*.shd” del “%systemroot%\system32\spool\printers\*.spl” echo Restarting Spooler. echo. net start spooler then your done.