"Previous generations commonly used silage and now it's becoming popular again," Local Land Services 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.

Local Land Services (LLS) is hosting a four-part series of webinars in August to help producers decide whether to make silage and how to do it, including storage in underground pits.

The free webinars are open to livestock producers across NSW and the information provided will be applicable in all LLS regions.

NSW Department of Primary Industries Livestock Research officer, John Piltz, who co-authored the 'Successful Silage' manual, will be the guest speaker on the webinars.

He explained that silage is a form of conserving forage which involves natural fermentation.

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

The webinars will cover forage quality and how it impacts silage quality and livestock production as well as mowing, wilting, harvesting, storage and feeding out of silage.

Participants will receive practical, step-by-step advice in an accessible, online environment via the four webinars which will be run weekly on Tuesdays from August 4.

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

If landholders cannot attend live, they can access recordings of the webinars after each week's event by going to www.lls.nsw.gov.au/silage-webinars