2. Water drainage: water is the basic component of plants, which can maintain cell expansion, straighten branches and spread leaves, and make flowers plump, upright and bright; Make garden plants give full play to their ornamental effect and greening function. If the soil water content is insufficient, the overground part will stop growing. When the soil water content is lower than 7%, the root system will stop growing, and the root system will seep out due to the increase of soil concentration, resulting in the death of the root system due to water loss. The water demand of the same plant is different in different growth periods of a year. In early spring, there is not much water demand for plant germination, but more water demand in the flourishing period of branches and leaves, more water demand in the flower bud differentiation period and flowering period, and more water demand in the fruiting period.
3. Fertilization: All kinds of garden plants, especially woody plants, will absorb nutrients at fixed points for a long time. Even if the original soil with high fertility is consumed year by year, the fertility will be reduced. Therefore, the soil should be constantly fertilized to ensure that the planted plants grow vigorously.
4. Intertillage weeding: Intertillage refers to an artificial method to promote soil surface looseness, thereby increasing soil permeability, improving soil moisture, promoting fertilizer decomposition, and being beneficial to root growth. Tillage can also cut off the preservation of Cinnamomum camphora, maple field and Cryptomeria fortunei forest. Plant more ball plants to form a green belt, covering the bad landscape outside Lubei Garden. When planting perennial flowers such as iris, canna, etc., a long flower diameter will be formed at flowering stage = the depth of intertillage should be shallow, and the deep-rooted flowers should be deep, generally more than 5 cm. If combined with fertilization, intertillage should be deepened in sunny days or 2-3 days after rain. When the soil moisture content is 50%-60%, the best intertillage times are: flowering shrubs at least 1-2 times a year, young trees at least/kloc-0 times a year, and big trees at least/kloc-0 times every other year. In summer, intertillage combined with weeding can kill two birds with one stone, and it should be shallow and deep after autumn, combined with fertilization. Weeds consume a lot of water and nutrients, which affects the growth of garden plants. At the same time, they spread various diseases and pests. Therefore, weeds in garden green space should be removed frequently, and weeding should be based on the principle of "moving, moving small and moving". Weeding is a heavy crop, usually pulled by hand or with a shovel. Weeds can also be removed by intertillage. It is convenient and economical to use chemical herbicides to weed with high removal rate. Herbicides are divided into two types: inactivated and systemic.
5. Plastic pruning: Plastic pruning is a very important and interesting conservation and management measure in the process of garden plant cultivation. The purpose of plastic pruning is not only to adjust and control the contradiction between the growth and flowering of garden plants, but also to meet the requirements of viewing and achieve beautiful results. The pruning of garden plants is restricted by many factors such as the plants themselves and the external environment, and it is a work with strong theoretical and practical significance.
6. Anti-virus: Some garden plants, especially tree species moved from the south to the north, are difficult to adapt to the cold winter in the north or suffer from late frost after the trees germinate in early spring, which makes the plants wither. In order to prevent the above freezing injury, some measures need to be taken.
7, Tan Yun lame pest control: Plants often suffer from various pests and diseases in the process of growth and development, from poor growth to loss of ornamental value, to plant death, with heavy losses. Therefore, the prevention and control of pests and diseases should focus on prevention, early detection and early prevention. Effectively protect plants, reduce or avoid various pests and diseases.