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PureHarvest · January 20, 2017

At 15 grams of seed needed per 1020 tray, once ounce of seeds will do 2 trays.

Math: 1 ounce = 28.3 grams. I rounded up to 30 grams. 30 grams/15 grams of seed per tray= 2 trays.

January 20, 2017	#40
PureHarvest Tomatovillian™ Join Date: Mar 2014 Location: Mid-Atlantic right on the line of Zone 7a and 7b Posts: 1,369	At 15 grams of seed needed per 1020 tray, once ounce of seeds will do 2 trays. Math: 1 ounce = 28.3 grams. I rounded up to 30 grams. 30 grams/15 grams of seed per tray= 2 trays.