Peppers grown in winter are prone to umbilical rot, cracked peppers, and poor coloring, which are mainly caused by calcium deficiency in plants. Because the winter temperature is low, the temperature difference between day and night is large, and the air humidity is low, it affects the absorption of calcium by the pepper root system and the calcium transport in the pepper plant body, which easily leads to calcium deficiency. Therefore, for peppers grown in winter, calcium fertilizer should be added during the flowering and peppering period to ensure the supply of calcium.
During the flowering and pepper-peppering period of the pepper, the root should be sprayed with 200 to 300 times the aqueous solution of ammonium calcium nitrate or 600 to 800 times the aqueous solution of Xingpeng calcium and magnesium No. 1 every 15 to 20 days. Apply 1.5 to 2 kg, and evenly apply it to the soil around the roots of pepper plants. It is advisable that the fertilizer liquid completely penetrates into the soil and does not flow out. At the same time, every 7 to 10 days, the foliage is sprayed with 800 times chelated calcium aqueous solution, or 1000 times activated calcium aqueous solution, or 800 times fluid calcium aqueous solution, or 1000 times calcium sugar alcohol solution, or 800 times polymerized calcium solution, or 600 times. Amino acid calcium solution, or 500 times calcium nitrate solution. Spray 3 to 5 times in a row, spray all the leaves, flower buds and peppers evenly. It is advisable to start to drip water drops. Supplementing calcium fertilizer from the leaf surface can quickly increase the calcium level of pepper plants, and has obvious effects on promoting the expansion, maturity, coloring, cracking prevention and prevention of umbilical rot of pepper and fruit, and it can also improve the storage stability.
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