1, seedling stage: when used after seedling stage 1 2 leaves, it can obviously promote the elongation and thickening of main roots, increase the occurrence of lateral roots, enhance the root vitality and absorption intensity, and form strong seedlings as soon as possible, which is beneficial to transplantation. Use rooting agent 300 times per square meter of seedbed, dilute it by 5 ~ 10 kg for watering and spraying.

2. Transplanting: When transplanting, dipping and irrigating the roots with rooting agent can improve the survival rate of seedlings, slow down the seedlings and accelerate the roots, and overcome the obstacles of high and low ground temperature. Dip the rooting agent diluted 500 times into the root point and smear it.

3. Growth period: During the growth period, root irrigation can obviously stimulate the occurrence and elongation of roots at all levels, increase the absorption area and strength of roots, and provide guarantee for the growth and development of aboveground parts. But also can resist continuous cropping, effectively prevent and control rotten roots, rusty roots, dead seedlings, premature plant aging and the like. Dilute the solution by 500 ~ 1000 times for root irrigation.