First, the lawn:
1. Watering: The drought in spring and autumn in Shandong is a very obvious climate feature, but in June, July and August, lawns generally don't need watering, and maintenance personnel often neglect water conservation. So pay attention to watering the lawn more in September. According to the weather conditions, it is necessary to water the soil once before freezing, commonly known as "frozen water". This kind of watering is very important for the lawn to overwinter. The root system of the lawn is full of water, and its cold resistance is enhanced, which is conducive to safe overwintering.
2. Fertilization: The application time of fertilizer in winter is 1 month before the lawn stops growing, that is, from the middle and late September to the middle and late June of 10. Choose all elements of nitrogen, phosphorus and potassium and fertilizers containing organic matter, with long validity and comprehensive nutrition. Recommended special fertilizer for lawn: the packaging specification is 20k g/ bag, and the dosage is 2 bags per mu.
3. Remove hay and fallen leaves: it can not only reduce the stay of overwintering pests and diseases, but also reduce the occurrence of fires.
Second, perennial flowers
1. watering: water according to the weather and precipitation, and pour enough frozen water before freezing. Special attention should be paid to newly transplanted flowering shrubs in late autumn construction. When such flowers are transplanted, the root system is not fully restored, and the drought and cold resistance are not as good as those of the old seedlings. Insist on watering when it is particularly dry in winter.
2. Fertilization: from the middle and late September to the middle and late October of 10, select a full-element fertilizer rich in organic matter and nitrogen, phosphorus and potassium, bury the furrows in the ground for 3-5cm, and water them. If the soil is spread on the surface, organic matter can't improve the soil.
3. Remove dead leaves: after frost in the middle and late June, remove fallen leaves and pruned branches in 5438+065438+ 10, remove the living place of pests and diseases, and prevent fire in winter and spring.
Third, seedlings: including small shrubs and trees.
1. watering: water according to the weather and precipitation, and pour enough frozen water before freezing. It is difficult for most deciduous trees to judge whether there is water shortage in winter from their branches. This part is exposed on the ground, and the branches are still frozen when the roots are short of water. So when there is little precipitation in late autumn and early winter, we must strengthen the watering work. In particular, the newly transplanted trees are prone to freeze injury caused by water shortage in their roots because their roots do not grow vigorously and the backfill soil is not solid.
2. Fertilization: from the middle and late September to the middle and late October of 10, select all-element fertilizers rich in organic matter and nitrogen, phosphorus and potassium, bury them in the ground for 3-5cm, and water them. At present, there is a new type of rod-shaped slow-release fertilizer on the market. According to the size of the tree, the fertilizer is punched and put into the hole, and the validity period of the fertilizer can be as long as 1 year, which is convenient to use and comprehensive in nutrition.
3. Pruning: Prune all kinds of trees in late June 10, and cut off useless side branches as needed to promote the growth of main stems.
Large-cut brush branches can effectively prevent pests and diseases from invading from wounds, which is not good for plants and the environment.
4. Whitening: It is very important to match whitening agent scientifically. The effect of simply brushing quicklime to control pests is not ideal, and it can only play a simple bactericidal role and cannot kill eggs parasitic in cracks in bark. At present, there are boiled stone sulfur mixture and sulfur suspending agent which is more convenient to use on the market.
5. Wrap straw rope: After painting, wrap straw rope around the trees with poor cold tolerance to help them keep warm and overwinter safely. Wrapped with straw rope and then supported can prevent the damage of supporting materials to newly transplanted trees in windy weather in winter. For seedlings transplanted from the south to the north, such as Magnolia grandiflora, Magnolia grandiflora, Ligustrum lucidum, etc., it is best to have the above protective measures to help them survive the winter safely.
Winter fertilization: the last fertilization in the growing season. Plants can store enough nutrients to withstand three months of cold winter and ensure that they will turn green as soon as possible in the early spring of the following year.
Whitening the trunk: applying whitening agent to the trunk of flowering shrubs and some fallen branches can penetrate and erode the body wall of germs and pests, and kill pests and eggs. Whitening can prevent the bark from sunburn in winter. This work is crucial to prevent autumn pests and diseases.
Frozen water: It is very important for plants to survive the winter safely. It must be watered thoroughly. The time of freezing water irrigation in Shandong area is 65438+late February. However, because there is less rain and snow in winter in Shandong, when the temperature is high in some years, it is not enough to water once in winter, and it needs to be watered 2-3 times. According to experiments, when the water content in plants is lower than 70% of the normal value, it is easy to cause freezing injury, so many freezing injuries are not caused by simple low temperature.
The above information comes from China Yulan. I hope it will help the landlord ~