Teach you how to plant Robinia pseudoacacia in winter.

There are several advantages in planting locust trees by cutting dry in late autumn and early winter: First, avoid the peak planting season in spring and busy farming season, make full use of the winter fallow period, and fully guarantee the quality of planting time. Second, according to the physiological characteristics of Robinia pseudoacacia, the daily average temperature required for root growth is relatively low. After autumn defoliation, the aboveground part stops growing, while the underground part still grows for a period of time. When defoliation occurs, the flowing nutrients of branches and leaves return to the trunk and roots. At that time, the roots store abundant nutrients, which makes the roots have a growth stage. Thirdly, the plots planted with Robinia pseudoacacia are generally arid, followed by rainy season in late autumn and early winter, soil moisture is better than spring, when planting is more conducive to root growth, thus improving planting survival rate. The roots of newly planted locust seedlings have been restored and grown for a period of time before the arrival of severe winter. The next spring is short, and the roots grow immediately after the temperature is appropriate, and then sprout from the roots to grow into new branches.

1. Planting time: planting as soon as possible after all leaves fall in November every year.

Second, seedling size specifications: barren hills afforestation generally choose seedlings with a ground diameter of more than 0.7 cm, and green seedlings with a ground diameter of more than 2 cm can be selected. To retain a complete root system, the root system length is not less than 25cm, and the root width is not less than 20 cm.

III. Planting technology: Autumn and winter planting generally adopts the method of digging and planting. When digging holes, separate the upper layer of mature soil from the lower layer of raw soil. Before planting, trim the roots and cut off the rotten roots and cracked roots. The planting depth is consistent with or slightly deeper than the seedling burial depth. When backfilling soil, it is necessary to backfill mature soil first, then fill raw soil, so as to achieve the goal of "three burying, two treading and one seedling lifting." Trunking can be carried out immediately or 10 days after planting (it can make some sap flow back to the roots of seedlings and facilitate root growth), and the height of trunking is 2-3 cm from the ground. Cut it dry and bury it.