Soil Type

• A soil test will tell you what's missing.Gardener's Delight image by Epix from Fotolia.com
  
  Clay loam and silt-rich soils generally allow for more productive plants, while sandy soils will lead to early maturity, according to North Carolina State University Extension.
  
  

Soil Nutrients

• You may or may not need to add nutrients to your soil.preparing soil for garden image by Cherry-Merry from Fotolia.com
  
  Before applying fertilizers, test your soil with a soil testing kit. Contact your local extension office or ask other tomato gardeners for recommendations on where to get them. The test results will reveal to you which nutrients your soil is lacking, allowing you to buy the proper fertilizers for optimum development.
  
  

Types Known for Sweetness

• Growing yellow tomatoes may give you a sweeter crop.yellow tomatoes 1 image by robert lerich from Fotolia.com
  
  Yellow and orange tomatoes have a higher sugar content than reds. Examples include Lemon Boy and Jubilee. Many of the smaller fruits -- those that are 1 to 1 1/2 inches in diameter -- are also sweet, such as Sweet Million and Super Sweet 100.