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Key Technical Points for Spring Fertilizer and Water Management of Garlic

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After garlic turns green again, its absorption of fertilizer and water gradually increases. Especially during the bolting stage and the garlic bulb enlargement stage, these are the peak periods of fertilizer and water demand. In terms of management, emphasis should be placed on watering the "three waters" well and applying the "three fertilizers" well. Water the green-up water well and apply the green-up fertilizer well. In spring, the soil temperature is low, so it is best to water the green-up water at noon to promote early seedling growth. Along with watering, apply 15-25 kg of nitrogen-phosphorus-potassium compound fertilizer per mu or 15 kg of potassium sulfate, then control water appropriately to promote root development. Water the bolting-promoting water fully and apply the bolting-promoting fertilizer heavily. Late March to early April is the period of rapid differentiation of garlic flower buds and clove buds

After garlic turns green again, its absorption of fertilizer and water gradually increases. Especially during the bolting stage and the garlic bulb enlargement stage, these are the peak periods of fertilizer and water demand. In terms of management, emphasis should be placed on watering the "three waters" well and applying the "three fertilizers" well.

Water the green-up water well and apply the green-up fertilizer well. In spring, the soil temperature is low, so it is best to water the green-up water at noon to promote early seedling growth. Along with watering, apply 15-25 kg of nitrogen-phosphorus-potassium compound fertilizer per mu or 15 kg of potassium sulfate, then control water appropriately to promote root development.

Water the bolting-promoting water fully and apply the bolting-promoting fertilizer heavily. Late March to early April is the period of rapid differentiation of garlic flower buds and clove buds, and it gradually enters the stage of simultaneous growth of garlic scapes and garlic bulbs. The leaf area reaches its maximum, and the garlic scapes grow rapidly. During this period, water demand is relatively high, and watering must be done in time to meet growth needs. Along with watering, apply 25 kg of compound fertilizer per mu, and after 15 days apply 25 kg of nitrogen-phosphorus-potassium compound fertilizer per mu, or 15 kg each of urea and nitrate phosphorus potassium compound fertilizer. Under normal circumstances, water once every 7-10 days, and during the bolting stage water once every 5-7 days. Apply quick-acting nitrogen fertilizer with every two waterings. At the same time, spray foliar fertilizer to supplement sulfur, as garlic has a relatively high demand for sulfur.

Water the bulb-enlarging water fully and apply the bulb-enlarging fertilizer skillfully. After harvesting the scapes, the garlic bulbs reach the peak enlargement stage. When harvesting the scapes, the leaves and root system should be well protected. After harvesting the scapes, water in time to prevent premature senescence of garlic leaves and extend the functional period of the leaves. After harvesting the scapes, mainly apply quick-acting nitrogen fertilizer, with phosphate fertilizer added, and apply 15-20 kg of urea or potassium sulfate compound fertilizer per mu. Keep the soil moist, and stop watering 1 week before harvesting the garlic bulbs.

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