Dry film thickness gauge, magnetic type is an instrument used for the non-destructive measurement of dry film thickness of a nonmagnetic coating on a magnetic substrate like iron and steel.
Even small tomato varieties have substantial root mass. The minimum pot size for a patio tomato should be 14 inches in diameter, with a capacity of at least 5 gallons. For best results go with a 17- to 20-inch pot that holds 15 to 20 gallons.And try to avoid black; it may cause the soil to overheat.ind a Large Pot. Even small tomato varieties have substantial root mass. The minimum pot size for a patio tomato should be 14 inches in diameter, with a capacity of at least 5 gallons. For best results go with a 17- to 20-inch pot that holds 15 to 20 gallons. And try to avoid black; it may cause the soil to overheat.
Ask your garden center to advise on size of pots. Most tomatoes use large containers (18-gallon). Use potting soil (such as Miracle Grow), 1 cup of Osmocote slow release 13-13-13 and 1/4 cup of lime. Every 12 days, feed with a high phosphorous fertilizer.