In recent years, the development of agriculture has gradually evolved from the former handicraft industry to the current industrial development, and many farmers have also gradually embarked on the road of rapid development. Many people are moving from the countryside to the cities, and the land at home is sown and harvested with various kinds of machinery, which greatly improves efficiency.
Plant growth regulator is a common agent in China's agriculture, and it also includes many types, such as dwarf, multicolor, insecticidal urea and other pesticide reagents. Different types of reagents have different effects on plant growth regulation. For example, dwarf hormone can increase the yield by inhibiting the growth of stem.
Plant growth regulator has the effect of resistance to low temperature, drought, flood, wind, diseases and insect pests, and this effect is known as the academic resistance. The main reason is that the content of lignin and cellulose in the crops after spraying increases. The crop stems are tough and grow well. It not only enhances the immunity and resistance to diseases and insect pests, but also improves the lodging resistance ability.
The spraying time of plant growth regulator should be in sunny days with no wind and the temperature above 20 degrees is preferred. It is generally appropriate to spray after 3:00 p.m. on sunny days, but not in strong wind, rainy days or under hot sun. If it is sprayed on a rainy day, the liquid will be lost. If it rains within 6 hours after spraying, it should be replenished. Spray under the burning sun, the liquid volatilize quickly, the same effect.
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