Winter is coming to give winter gardens a "winter protection"

Unknowingly, winter is coming again, recalling the history of last winter's raging winter, plants are seriously frozen, and economic and ecological losses are huge. In order to better carry out the winter protection work of garden plants. We will discuss the connotation and significance of winter protection and how to do a good job in winter protection.

First, what is winter protection?

The traditional "winter protection" generally refers to the winter protection of plants, that is, the various antifreeze and cold resistance work done in winter. The “winter protection” in a broad sense refers not only to the protection against freezing and cold, but also to the management of plants in autumn and winter (eg, promoting old leaves, proper trimming, strengthening fertilizer management, autumn and winter clearing and pest control). Soil conditioning, etc.).

Compared with traditional winter protection, generalized winter protection has the following characteristics:

First, from the time of winter protection: winter protection is not limited to winter, but should cover the entire period of autumn and winter and spring.

Second, from the content of winter protection: Winter protection not only focuses on winter cold and anti-freezing, but should include autumn plant stress management, winter plant cold and anti-freeze, anti-transpiration (reduced water consumption, anti-dry cold, Comprehensive management content such as anti-slipping), management, and spring cold damage.

The third is from the perspective of winter protection: winter protection is not only the protection of street trees, but also all the garden plants that need winter protection, such as lawns, flowers, seedlings and ground covers.

Second, why should we pay attention to the winter protection of garden plants?

First, it is based on the need to deal with severe weather such as sudden frost and frost: In recent years, spring city snow, southern hail, "not a legend but a disaster." Frequent cold disasters and other self-harming disasters are frequent, and the damage to various wintering plants is increasing. Suddenly, the frosty cold wave is unpredictable. Plants that have not been protected from frost damage are vulnerable and have suffered heavy losses, especially in 2008. In 2011, the freezing damage in 2015 caused huge economic losses to garden plants. The greening achievements of many cities were also destroyed. Therefore, it is imperative to do a good job of “winter protection”, and it is also increasingly affected by green conservation enterprises. And the care and attention of practitioners. It is imperative to explore and innovate the measures and methods of “Winter Protection”.

The second is based on the needs of plant health protection: low temperature damage in winter will bring about serious problems in subsequent maintenance. First, the plants are damaged after being frozen, and the landscape is affected. Rather, growth is severely hampered, and even with greater energy for conservation, it may not be able to restore its robust growth. Paying attention to winter protection and making plants healthy for the winter is the need for plant health conservation, and it is also the need for gardeners to preserve the greening achievements.

The third is based on the scientific and effective prevention and control of the needs of garden plant diseases and insect pests: in recent years, garden plant pests and diseases, especially branch diseases and insect pests such as dry rot, ulcer disease, gum disease, small mites, jiding insects, beetles and other high frequency It poses serious damage to garden plants and is difficult to control. It is difficult to control effectively. The reason is closely related to the winter frost damage of plants, the sunburn damage to the trunk, and the weak growth. Through scientific winter protection measures, this problem can be effectively reduced:

1. Clearing the garden in winter can effectively reduce the overwintering insects and pathogens and reduce the density of insects and the number of bacteria in the coming year.

2, through the protection of tree branches, reduce and seal the wound, can greatly reduce the occurrence of diseases such as dry rot, gum disease, small mites, and beetles.

Third, how to do a good winter protection of garden plants?

Through the understanding of the connotation of winter protection, the essence of winter protection is two points: to enhance the resistance of garden plants and to improve the cold resistance and frost resistance of garden plants. Below we will explain the specific measures of winter protection:

(1) Improve the stress resistance of plants: Before the onset of winter, through the combination of physical measures, chemical agents and fertilizers, the plant's ability to resist freezing and cold resistance is enhanced. Specific measures include:

1. Chemical measures:

(1) By spraying the growth retardant to prevent the branches from growing, and promoting the ripening of the branches, thereby enhancing the ability of the trees to resist freezing and cold resistance.

Because of the young shoots, the water content is high, and it is easy to suffer from freezing damage in winter. The use of growth retardants such as Guoguang Dwarf, Guoguang Xiaozhuang, Guoguang Meiprazine and Guoguang Paclobutrazol promotes the timely stoppage of young plants and the ripening of branches. Increase the ability to withstand cold and freeze.

(2) In the autumn or early winter, through the application of high-potassium and low-nitrogen-resistant fertilizers such as Guoguang Runer Potassium and Guoguang Shiqi, the new rod fertilizer promotes nutrient accumulation of trees and restores tree potential, thereby enhancing the ability of freezing and cold resistance.

In the supplement of fertilizers, in the early autumn, you can use medium-phosphorus/high-phosphorus and low-nitrogen fertilizers such as Guoguanglai Luoshi, Guoguang Shiqi stick fertilizer, Guoguang Runer potassium, etc., one is to supplement the large amount of nutrient consumption in summer, and the other is to increase the autumn. Nutrition accumulation. Fertilizer selection must control the amount of nitrogen fertilizer, avoid the use of high nitrogen fertilizer. In the late autumn, it is recommended to mainly apply potassium fertilizer such as Guoguang Runer potassium, because potassium fertilizer is a typical resistant fertilizer, which can increase the concentration of cytoplasm and the stability of cell membrane, thereby improving the ability of plants to cope with low temperature damage.