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How is celery rotten heart to return a responsibility? How to prevent and cure?

Published: 2024-11-06 Author: mysheen
Last Updated: 2024/11/06, What is celery Fusarium wilt should be how to prevent and cure? 1. Disinfect with disease-free seeds or seeds. The mother plant should pay attention to the selection of disease-free petiole, stem and leaf so as to avoid carrying bacteria. The use of old seeds for more than 2 years has a certain disease prevention effect. Use the new seed of the first year must carry on the seed disinfection, can use 48Mel 4.

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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