Correct use methods and precautions for plant antifreeze
Plant antifreeze is also called antifreeze agent, cold-resistant antifreeze, antifreeze liquid, etc. It is a foliar fertilizer containing plant hormones, nutrients and trace elements. Nowadays many farmer friends use it in agricultural production, so what are the use methods and precautions for plant antifreeze? Let's take a look together.
1. Main effects
Its main effect is to activate biological enzymes, kill or prevent the formation and reproduction of ice nucleus cells, maintain the temperature of biological membrane structures when the temperature drops, reduce and alleviate the damage of low temperature to biological membranes, lower the freezing point of plant cells, enhance the plant's water retention and frost resistance, inhibit and destroy freezing proteins, increase heat, and improve the plant's resistance to low temperature.
2. When to use
Plant antifreeze can be used in autumn before plants shed leaves and enter dormancy, one week before frost or a cold wave arrives, before and after germination in early spring, and before and after flowering when sudden low temperature occurs or when frost damage has occurred. It is mainly used before flowering and leaf fall, and the effect is best at around 10 degrees; use is prohibited below 5 degrees. Generally, it is used 3-5 days before cold air arrives, so as to improve the plant's stress resistance.
3. Use methods
The use methods of plant antifreeze are relatively simple and can be carried out by root irrigation or foliar spraying. Generally, it is used in late autumn, early winter, and during the spring cold spell when the temperature is 10-15 degrees, sprayed once every other week, for 2-3 consecutive applications. For the spring cold spell, it is generally used 3-5 days before it arrives, and can be diluted 150~200 times for spraying or 300~400 times for root irrigation.
4. Precautions
As mentioned earlier, it should be used before leaf fall and yellowing, because when leaves fall and turn yellow, most plants have entered the dormancy period, and the plant's absorption is not very good, so even if it is sprayed, there will be little effect. As for prohibiting spraying below 5 degrees, this is because at this time it is very easy to freeze after spraying, which will not only hinder the plant's absorption, but also aggravate frost damage. Combine it with other antifreeze measures. After using plant antifreeze, combine it with other antifreeze measures, such as earthing up, watering with frozen water, whitewashing tree trunks, etc., to improve the plant's cold resistance.
The above is an introduction to the use methods and precautions of plant antifreeze. I hope it can help you. To learn more related knowledge, please follow us.