Q: The sweet potatoes have been cracked. Why did they prevent the cracking of sweet potatoes?

A: Hello, sweet potato cracking, for many reasons, first look at you are earthworms? Generally melons like sandy loam soil, it will produce cracked melons for clay because of soil compaction, poor air permeability, and low content of organic matter, causing melons to crack. If there is no problem with soil quality on your side, nutrient elements in the soil may be unbalanced. Fermentation of large-scale soil and fertilizer is also easy to cause cracks in the crust of the tuber; uneven water during growth, long-term drought suddenly encountered large water, causing rapid growth of the flesh, and the epidermis grows slower than the internal and break through the epidermis; Some of the pests in the ground, especially bullfrogs, have destroyed the epidermis of the cassava, resulting in cracking of the wounded cortex and the formation of large cracks (the sweet potato in Shandong Province has a lot of golden needles and cockroaches, causing a lot of cracking melons. Don't know if you have any observations in Hebei.) The root knots cause cracks - look at whether the melon pieces are hollow or not? . Preventive measures: pay attention to balanced fertilization, timely watering, avoid soil drought, timely control of pests and diseases, before planting quail can be diluted with 10% azithiothiazide phosphine, dip root, applicator arve or chlorpyrifos granules to prevent underground pests. Choose suitable planting soil; Second, plant virus-free varieties; Third, formula fertilization, application of balanced calcium fertilizer and boron fertilizer can effectively promote the absorption of fertilizer efficiency, can prevent cracking of sweet potatoes; Fourth, to avoid the phenomenon of early flood water, excessive drought Water as soon as possible.

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