During the hot summer season, vegetable farmers often encounter issues when spraying pesticides, as vegetables are highly susceptible to phytotoxicity. Agricultural experts have analyzed several key reasons behind this problem and provided practical solutions.
First, herbicide drift is a major cause of phytotoxicity. After wheat harvesting, it's common to apply large amounts of corn herbicides, but vegetables are extremely sensitive to these chemicals. Some summer crops, such as cucumbers, may show symptoms like yellowing and drying of leaves, especially those near greenhouses. To prevent this, farmers should ensure proper ventilation control and avoid spraying near greenhouses when wind conditions might carry the chemicals. Regular inspections are also essential to identify and mitigate risks early.
Second, overuse of growth regulators can lead to phytotoxic effects. High temperatures in greenhouses during summer increase nutrient consumption, which may result in excessive vegetative growth and hinder flowering and fruit setting. Many farmers use growth inhibitors like auxin, chlormequat, and paclobutrazol to balance plant growth. However, some tend to increase hormone concentrations or repeat applications, causing hormone poisoning. It's important to follow instructions carefully and apply these substances only when necessary, based on the actual condition of the plants.
Third, improper disease management can also cause phytotoxicity. High humidity due to frequent watering and rainy weather creates ideal conditions for diseases to spread. Some farmers spray pesticides under intense sunlight or at high concentrations, leading to leaf damage. To avoid this, it's crucial to choose the right time for spraying, use appropriate concentrations, and avoid overuse of chemicals.
Finally, if phytotoxicity occurs, prompt action is needed. Immediate steps include rinsing the affected leaves with water, using specific antidote sprays, and adjusting fertilizer and irrigation practices. For example, if too much paclobutrazol is applied, mixing with gibberellin or brassinolide can help. Auxin or chlormequat toxicity can be reduced by applying cytokinin. In cases of herbicide injury, products like Huimanfeng active liquid fertilizer or 800 times diluted 0.05% 920 solution can be used. Adding urea or potassium dihydrogen phosphate can also aid recovery and promote healthy growth.
By following these guidelines, farmers can effectively reduce the risk of phytotoxicity and maintain the health of their crops throughout the summer season.
A Robe hook is a great way to hang bath towels and clothing to dry, and they aren't just for the bathroom. They are also great storage solutions for entryways, laundry rooms, kitchens, and bedrooms.
Robe Hook,Robe Hook Design Ideas,Wall Mounted Robe Hook,Double Robe Hooks
Kaiping Jenor Sanitary Ware Co., Ltd , https://www.jenorsanitary.com