Understand how to cultivate edible fungi and the anti-freezing and disaster relief techniques of open-field flower seedlings.

(1) function and use

Most of the flower seedlings cultivated in the open field are more hardy, and the aboveground parts are mainly frozen after heavy snow and freezing rain. Through the implementation of techniques such as using small arch shed to block rain and snow, gradually rising temperature, pruning and fertilization, etc., to promote the growth of flower seedlings.

(2) Technical introduction

1. De-icing and heat preservation. Remove the frost from the plant in time (shake it gently, gently tap it with soft bamboo, but do not beat the branches and leaves) and cultivate the soil. Cover and keep warm with plastic film or rice straw, grain husk, etc.

2. Strengthen field management. After trenching and drainage, the temperature rises steadily, pruning and pruning, cutting off the frozen parts, and promoting the germination of new shoots. After the land is thawed, shallow ploughing and fertilization is carried out in early spring, quick-acting nitrogen fertilizer is applied, and phosphorus and potassium fertilizer is applied appropriately. 1% urea + 0.2% potassium dihydrogen phosphate can be used as extra-root topdressing to restore plant vitality as soon as possible, improve plant cold resistance and lodging resistance, and promote bud germination and shoot growth.