Calcium is sprayed on the leaves and sprayed with 800-fold solution of the new high-fat film with 0.3% to 0.5% calcium chloride and calcium nitrate. Generally, the spray is applied every 7 days or so. Spraying can be performed 2 to 3 times.
Tomato should be sprayed on the upper and lower leaves of the inflorescence, 2 to 3 leaves, and Chinese cabbage should be sprayed with calcium when it begins to enter the ball stage.
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