The latest course on planting techniques and methods of Willow

The willow is the general name of many kinds of plants of the genus Salix in the willow family. It has been cultivated in China for more than 4,000 years. It is mainly used for gardening and ornamental planting in residential areas, gardens, schools, factories, hillsides, courtyards, roadsides, buildings and other places. The branches spread to the willows in all directions, making the courtyard green stripes, which is actually an ideal tree species for beautifying the courtyard. Let's take a look at the planting techniques of willows.

Growth habits of Willow

Willow belongs to a wide ecological range of plants, which has a wide adaptability to the environment, and is a mesophytic and humid tree species that likes light, humidity and cold, but some species are also more tolerant to drought and saline-alkali, and can grow in places with poor ecological conditions. they grow better in the plains and fertile fields with superior site conditions, with a general life span of 20 to 30 years, a few species can reach more than 100 years, a long growth period in a year, early germination and late defoliation, and some species in the south are evergreen trees.

Propagation methods of Willow

Willow cutting propagation is commonly used, which can maintain the excellent characteristics of the mother tree, mainly cutting propagation, but also sowing and raising seedlings. The cuttings were carried out in early spring, and the excellent plants with fast growth and few diseases and insect pests were selected as the mother tree. 2-3-year-old branches were cut before sprouting and cut into 15-17 cm as cuttings. The plant spacing was 20 × 30 cm and fully watered after cutting. often keep the soil moist, wipe sprouts and weeds in time, and apply topdressing 3 times after rooting, the seedlings are vulnerable to weevil, aphid and willow leaf beetle. The seeds were harvested in April and sowed as they were picked. The weight of a thousand seeds is 0.4 grams, the germination rate is 70% 80%, the sowing weight is about 0.25 kg per mu, and the height of the seedlings is 80 cm 100 cm in the same year. The transplant should be carried out from the defoliation in winter to the bud in the early spring of the following year, and the pillars should be fully watered and supported after planting.

Planting techniques of Willow

1. After transporting the planted seedlings, the root system should be pruned first, and then planted immediately. The pruning should be scientific and reasonable, and the section must be smooth. When the soil is relatively sticky and heavy, the planting hole should not be less than 80 × 80 × 60 cm. In order to reduce being eaten by insects in the later stage, trichlorfon and other drugs can be evenly distributed into the hole, and the drug ingredients should be inhaled when the willow absorbs water during growth, which has the effect of releasing insects.

2. When planting the willow into the tree hole, it should not be too deep. Fill the bag with good soil and compact it.

3. Immediately after planting, the willow is watered once and filled with water in the bag. After all the water has seeped down, it is followed by a second watering. For the second time, the tree pits in the road are all watered, and the fallen seedlings are righted. Sometimes the soil in the pit will be washed away after watering. In case of such a situation, some more soil can be filled and compacted around with soil. The practice certificate has been watered twice every 15 days to meet the growth needs of seedlings for four months. Extra-dry soil needs to be watered more times.

4. If we encounter saline-alkali dry soil, we also need to make use of the characteristics of high water absorption and high water retention of water-absorbing resin, and apply water-absorbing resin to the root before planting willow into the tree pit to achieve the purpose of moisturizing the root to meet the needs of growth and survival. The use of vegetative reproduction, fast growth, can control sex, but after many generations of vegetative reproduction, growth decline, easy to occur shoot withering, premature senility and other diseases.

5. Longicorn beetles, bare-shouldered longicorn beetles, large coir moth, diamondback moth, plum leaf beetle, willow leaf beetle and grasshopper cicada damage branches and leaves. Willow leaf beetles can be sprayed with 600 times of trichlorfon or 1000 times of phoxim during the damage period from April to June. Moths and beetles can be sprayed with avermectin or Senle 1500 × 2000 times or Bt500~800 times. It can also be used for high pressure spray control with 300 times liquid of 15% wormline clear in the larval stage.