Recommended plant growth regulators for field crops

Gibberellic Acid (GA3): The main function of GA3 is to grow roots, leaves and lateral branches, maintain the apical dominance of crops, promote flowering (promote more male flowers in melons and vegetables), inhibit maturity and aging, and the formation of underground rhizomes.

Auxins: Auxins mainly promote fruit setting, induce flower bud differentiation, delay leaf aging, and control the ratio of males to females. Common ones include Sodium Nitrophenolates (Atonik), 2,4-D, 1-Naphthyl Acetic Acid (NAA), Indole-3-Butyric Acid (IBA).

Ethephon: Ethephon can make plants short and strong and prevent lodging. It is mainly used for ripening and coloring. In addition, it can promote flowering, produce more female flowers, and promote crops to bear melons early and bear more melons. For example, Zenggualing used on various melons and fruits, and a compound preparation of 30% Diethyl aminoethyl hexanoate (DA-6) + Ethephon used on field corn.

Cytokinin: It is mainly used to expand fruits and promote cell division, such as cucumbers, bitter gourds, loofahs, gourds, etc. If you want the crops to grow longer, you can use GA3, but if you want them to grow thicker and stronger, you have to use cytokinin. It can eliminate apical dominance and promote the development of lateral buds.

Abscisic acid: It mainly promotes buds to enter dormancy, so that leaves and fruits can fall off in advance, and is known as "dormant hormone". Abscisic acid can make crops grow slower, stronger, and increase the stress resistance of plants, such as cold resistance, drought resistance, disease resistance, salt and alkali resistance, etc. It can also be used to keep fresh flowers and extend the flowering period.

Brassinolide: Brassinolide is mainly used to balance the above 5 regulators. Whether it is on roots, flowers, leaves, fruits, or increasing disease resistance and stress resistance, the effect is more obvious. It can not only enhance the ability of crops to resist diseases, cold, drought, salt and alkali, and prevent premature aging, but also reduce the problem of pesticide damage caused by improper use of pesticides and fertilizers.

The application of the above plant growth regulators on field crops can help farmers better control the growth and development of crops and improve the yield and quality of crops. It should be noted that the use of any regulator should follow the correct method of use and dosage to avoid adverse effects on crops.