The season of summer and autumn is also the season of ripening fruits and vegetables. However, every season, there will be "hormone watermelon", "ripening grapes" and "abnormal strawberry" caused by the use of ripening agent (ethephon), and as an important production data in agricultural production - plant growth regulation The agent has also been pushed to the cusp, but it really has a regulatory hazard to the human body, causing it to be deformed? Do you really understand the plant growth regulator?
Plant growth regulators are a special class of pesticides used to regulate plant growth and development. It includes synthetic compounds with similar effects of natural plant hormones and natural plant hormones extracted from organisms, which have a regulating effect on plant growth and development, and are essentially different from pesticides such as herbicides, insecticides and fungicides. And plant growth regulators only work on plants and do not regulate humans and animals.
The reason why plant growth regulators can regulate the plants themselves is because there are special chemical signals in the plants, plant hormones, which are differentiated and regulated by the metabolism of plants to produce transportable, low-concentration chemicals that regulate growth and development. For example, gibberellin promotes growth, auxin promotes firmness, abscisic acid ripening, dormancy, and the like.
Because plant regulators are highly targeted, in the case of less dosage and accurate dosage, the effect of increasing yield, increasing yield and improving quality is obvious, and the importance of plant growth regulators in crop production is becoming increasingly prominent. However, due to the differences in the degree of response of different crops to growth regulators, the optimum formulation and the application, it is important to grasp the use points and delays of plant growth regulators.
Plant growth regulator use points:
1. Select the product. Different crops have different effects on plant growth regulators. Therefore, the products should be selected according to the corresponding objects and functions on the product label, and used strictly according to the labeling user.
2. Grasp the concentration. To strictly use the concentration according to the label, it should be flexibly controlled according to the type of plant growth regulator, the purpose of application, the growth period and performance of crops, weather conditions, etc., otherwise the opposite effect will be obtained. For example, auxin promotes root growth at low concentrations, while higher concentrations inhibit growth.
3. Control time. Attention should be paid to the application time. When the plant growth regulator exceeds its effective action time, the plant body will exhibit the opposite growth effect.
4. Pay attention to the location. Different parts of different plants have different sensitivities to the regulators. Therefore, in the course of use, it is necessary to firmly grasp the optimum concentration, time and position point, and maximize the maximum benefit of the regulator.
Plant growth regulator use delays:
1, with "agent" for "fertilizer." Although some plant growth regulators add some concentrated NPK and trace elements, they are rare in content and have little effect, and must be used under sufficient water and fertilizer conditions to achieve significant effects, but some farmers mistakenly regard it as a The use of fertilizers ultimately affects the use of plant growth regulators.
2, increase the amount of consumption. Plant growth regulators generally have their fixed use concentration and range. Some farmers are afraid of less dosage and no effect. They can increase the amount of plant growth regulators or use concentration to inhibit their growth, and even lead to leaf malformation. The whole plant died.
3. Spray at any time. Plant growth regulators must be used at critical times in plant growth for maximum efficacy. Some farmers have insufficient understanding of this, and believe that no matter when spraying plant growth regulators, they can promote growth, increase production, and increase income. Therefore, do not look at the timing, spray at any time, resulting in poor spraying effect, and some Even cut production, reduce income.
More pesticide knowledge , please pay attention to China Pesticide Network
Hvac Filters,Hepa Air Filter,Hvac Air Filters,Hepa Media Filter
Dongguan V1 Environmental Technology Co., Ltd. , https://www.v1airpurifier.com