Robinia pseudoacacia is widely used in landscaping due to its adaptability. However, it was discovered in the survey that the growth potential of some hedgehogs was not strong. The reason for this was that they had to have a lot to do with when planting. The technical points of cutting hedgehogs in the fall and winter are as follows: 1. Planting time: Planting leaves as soon as possible after the leaves fall in November. Second, the seedlings specifications: general barren mountain afforestation in the diameter of 1 cm above the seedlings, greenery on both sides of the selected diameter of 2.5 cm in the seedlings, planting to retain a good root system, the root width of not less than 20 cm, the length of not less than 25 cm. Third, planting methods: using the method of planting with digging. When digging the hole, separate the top layer of mature soil from the bottom layer of raw soil. The depth of planting is consistent with or slightly deeper than the depth of seedlings. When filling, you must first fill in the mature soil and then fill in the raw soil. Fourth, pay attention: 1 before planting should pay attention to trimming the root system, need to be rotted root, cutting off the root. 2 Interceptible cuts can be planted along with cuttings, or they can be cut after 7 to 10 days of planting. 3 The cutting height is 3 to 5 cm from the ground. After the interception should be buried well. Choose the early fall and early winter planting, first, close to the rainy season, the soil moisture is better than the spring plum, which is conducive to the growth of the root; Second, the root system has been restored and has grown for a period of time before the onset of the severe winter. The late spring period is short and the temperature is suitable. The root system grows, sprouting new shoots grows into new shoots quickly, thus increasing the survival rate of planting. (Shandong Linqing Forestry Bureau Sun Shuxin)
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