How long does it take to water the drought-resistant water-retaining agent for dry land treasure agriculture and forestry once?

50 to 100 days. After the application of water-retaining agent, it can resist drought for 50 days in the growth period, and keep soil moisture 100 days or more in the non-growth period, and water it for 50- 100 days at a time. As a water-retaining agent, super absorbent resin is a kind of functional polymer material with particularly strong water absorption capacity.