18. Tomato fruit turns brown at the bottom -> Blossom end rot
Blossom end rot is a common problem on tomato plants and occurs when the fruit rots or develops brown spots on the underside. This is often caused by a lack of calcium or problems with calcium absorption into the fruit. Here are some steps one can take to prevent or treat blossom end rot on tomatoes:
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Ensure adequate watering
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Keep the soil evenly moist by watering regularly and deeply. However, be sure to avoid waterlogging as this can damage the roots.
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Avoid fluctuations in irrigation
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Irregular watering can disrupt the plant's calcium absorption. Watering should be kept constant, especially during fruit formation.
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Increase calcium intake
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It is possible to increase calcium intake by adding calcium-rich fertilizers or lime to the soil. A source of calcium such as crushed eggshells may also be useful. Add these to the planting hole before planting
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Use mulch
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Mulch around plants can help conserve soil moisture and reduce temperature fluctuations.
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Regular inspection and harvest
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Monitor tomato plants carefully and harvest ripe fruits in a timely manner to minimize stress and loss of resources in the plant.
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Check the pH value of the soil
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The soil pH should be in the optimal range for tomatoes, usually between 6.0 and 6.8. An incorrect pH value can affect the absorption of calcium.
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Use special preparations
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There are also special preparations on the market designed to prevent blossom end rot. These can be helpful when other measures are not sufficient.
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By implementing these tips and paying attention to the needs of your tomato plants, one can reduce the likelihood of blossom end rot and achieve a healthier tomato harvest.