Generally, a small amount of 920 crystal per package 1 g is used before the big ridge, which is also the time when two sugarcane meats are jointing.

The powder is mixed with 400 kg of water, mixed with pesticides and fungicides, and then gradually increased in the second half of the month 1.5 package, of course, not blindly increased;

If the quantity is large, the sugarcane festival will be very long and the leaves will be very thin, making the sugarcane look very thin. Generally, it is used once every 12- 15 days until it is stopped one month before harvesting. In addition, gibberellic acid 920 has low water solubility, so it should be dissolved with a small amount of alcohol or liquor before use, and then diluted with water to the required concentration.

920 is used in combination with sugarcane foliar fertilizer. Spraying foliar fertilizer on the leaves of sugarcane can quickly supplement the growth elements of sugarcane and achieve the effect of thickening sugarcane. 920 can be elongated, thickened and elongated, and the combination of the two can make sugarcane long and thick.

Extended data:

According to the fertilizer demand characteristics of sugarcane in different growth stages, the principle of fertilization is: "Re-applying base fertilizer in stages and timely topdressing". If only topdressing is not applied, sugarcane will grow easily: top-heavy, thick on the top and thin on the bottom, and prone to lodging. On the contrary, only applying base fertilizer without topdressing will cause insufficient stamina and "rat tail vine", which will affect the yield.

Fertilizers are mainly organic fertilizer, phosphorus, potassium fertilizer and a small amount of nitrogen fertilizer. Phosphate fertilizer and potash fertilizer are mainly used as base fertilizers, because the absorption of phosphate fertilizer by sugarcane is mainly in the early and middle stages. Moreover, the fluidity of phosphate fertilizer in soil is small, and it needs to be close to the roots to be easily absorbed.

The absorption of potassium fertilizer by sugarcane is mainly in the early and middle stages, and the potassium absorbed by sugarcane plants in the early and middle stages can be used in the later stage. Therefore, potassium fertilizer should be applied early, when the amount is small, it should be used as base fertilizer at one time, when the amount is large, half of it should be used as base fertilizer, and the other half should be applied at the peak tillering stage or the early jointing stage.