NSSL cây hằng năm

Investigate annual plant yield

The annual plant yield and yield survey is a survey under the National Statistical Survey Program conducted for the purpose of collecting information on the annual tree production situation to serve the calculation of statistical indicators. national and provincial levels of crop production; meet the requirements of management, planning of annual tree production development policies of all levels, branches and information needs of other users.

The survey was conducted according to each production crop in the year. Time to collect information in the field is 15 days, starting from the time of investigation.