How is celery rotten heart to return a responsibility? How to prevent and cure?
How is celery rotten heart to return a responsibility? How to prevent and cure? Celery rotten heart: if it is brown and dry, it should be caused by lack of calcium. Prevention and control methods: first, be careful not to control the water too much and keep the soil moist. The second is calcium supplement. That is, at the beginning, calcium fertilizer is sprayed on the leaves. The calcium fertilizers commonly used to supplement calcium are: green Fenwei No. 3 or calcium chloride. Due to the poor mobility of calcium, some naphthylacetic acid should be added when using calcium chloride. The specific method is as follows: first, naphthylacetic acid is prepared into 5 / 1 million solution, which is used as water, and calcium chloride is mixed into 0.3% aqueous solution. If there are other similar calcium fertilizers available for foliar spraying, they can also be used. More celery planting techniques
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How to fertilize celery scientifically?
How to fertilize celery scientifically? 1. Characteristics of fertilizer requirement: the nutrient absorption of autumn sowing celery was high in the peak period of vegetative growth, and the absorption of nitrogen, phosphorus, potassium, magnesium and calcium accounted for more than 84% of the total absorption. Celery needs the highest amount of nitrogen, followed by calcium and potassium, followed by phosphorus and magnesium. Celery also needs a lot of boron.
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How to do the celery stalk slender?
How should celery suffer rot disease to do? Celery soft rot, also known as rot, rot. In general, the optimum temperature of the disease is 25-30 degrees Celsius, and the disease site is mainly at the base of the petiole or on the stem. The disease spot showed a water-immersed light brown sunken spot at the beginning, then wet rot, blackened and smelly, and only remained in the epidermis. Prevention and treatment prescription.
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