Answer: Newly planted vegetable transplants can develop yellowing leaves while they are trying to adjust to their new places in the garden. After 10-14 days they generally perk up. So if you've only recently planted them, that can account for the yellowing foliage. If they are not new transplants, yellowing leaves can indicate overwatering or a need for fertilizer. Since you've already fed them, you just need to pay attention to watering. Veggies need about an inch of water per week. Water the bed completely and the next day dig your finger down into the soil. It should be damp at least 8 inches below the surface. If it is not, you didn't run the sprinkler long enough. Apply enough water to soak down at least 8-12 inches. Then allow the top inch of soil to dry out before watering throughly again. When you think your plants need watering, dig your finger down into the soil to check. If it is still damp 1 1/2 inches below the surface you won't need to water for another day or two: if it is dry, it's time to water again. Hope this helps you determine just what the problem might be.
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