Answer: First of all, I'd suggest you have a soil test done. While it's always a good idea to increase the soil's organic matter, you should check the pH and nutrient levels. The soil test results should include recommendations for soil amendments. <br><br>Be sure your tomatoes get a steady supply of water throughout the growing season. They should get at least 1" of water a week, so if nature doesn't supply it, you'll need to. A thick organic mulch like straw will help conserve water, and help control soil-borne diseases. Provide nutrients throughout the season as well, with a balanced fertilizer, following label directions for application.<br><br>If the tomato plants lose foliage due to disease, this can lead to sunscald on the tomatoes, which may cause skin to thicken.<br><br>If you check your soil and add the recommended amendments, and follow the above suggestions, you should have better luck this season. You might also choose a variety that tolerates hot weather, such as 'Heatwave'.
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