How to do calcium deficiency in watermelon

When the watermelon lacks calcium, the leaf margins are yellow and dry, and the leaves curl to the outside, showing a parachute shape. The top part of the plant became brown and necrotic, and the vines stopped growing. In addition, when the flower buds are differentiated, insufficient calcium into the ovary can easily cause fruit malformation.

Remedy: Increase gypsum powder or calcium-containing fertilizers such as superphosphate. Can also use 0.2% -0.4% calcium chloride solution foliar spray. In addition, we should also cover the grass in the field to keep the soil moist and prevent the watermelon from drought, so as to promote the absorption of calcium by the plants.

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