The first of the four webinars was held this week and LLS says a recording will soon be available to watch.

The following three webinars will be run weekly for the next three Tuesdays.

"Previous generations commonly used silage and now it's becoming popular again," LLS livestock officer Sue Street said.

"In recent times, we have seen many farmers helped through drought by digging up or opening silage that was stored or buried decades ago.

"Many producers who de-stocked during drought now have excess forage and, in some cases, cereal crops which could be turned into silage for future use on-farm or as a saleable product."

The webinar series covers how to make silage, including storage in underground pits.

LLS says the information provided is applicable in all regions.

NSW Department of Primary Industries livestock research officer John Piltz, who co-authored the Successful Silage manual, is the guest speaker on the webinars.

"Silage can be cut earlier in spring and provides more flexibility and higher quality than hay if done correctly," he said.

"Silage will generally keep indefinitely while it remains sealed and anaerobic or oxygen-free, so it is really important to pack the forage to remove and keep out air."

People must register separately for each of the webinars via the Local Land Services website by searching 'Silage webinars' or going to www.lls.nsw.gov.au/silage-webinars

Recordings of the webinars after each week's event will be available at www.lls.nsw.gov.au/silage-webinars