Regular moderate use of compost, within 2-5 liters per square meter depending on the type of crop, will help to avoid overheating and excess nitrogen. To feed plants, use organic substances such as mullein infusion, compost storm and humus, which will ensure a gradual flow of nutrients into the soil.
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In addition to compost, it is useful to alternate low-concentration mineral fertilizers and organic fertilizers in the garden to maintain a nutritional balance and not overload the plants. Visual signs of deficiency can help you determine which elements are missing: chlorosis of leaves can indicate iron deficiency, and picking of tips can indicate potassium deficiency.