Apple Tree: Pruning Roads in Winter
Pruning time Speaking of winter cuts in fruit trees, fruit growers generally believe that pruning can be done before winter leaves and before spring sprouting. As a result, many fruit growers will start pruning early according to their personal free time schedules, and no time will delay pruning. In fact, this is not scientific enough. Tests have shown that the effect of winter apple tree cutting is different. After the severe cold, the apple trees that were trimmed before the sap flow in the spring were more vigorous in the second year with good results and high yields. At the same time, they were also resistant to adverse external environmental conditions such as low temperature and drought. It has been observed that the earlier trimming during this time, the more favorable it is to promote tree growth. The later trimming time, the smaller the effect. Apple tree pruning time in winter is generally suitable from mid-January to early March. Prematurely, shears are prone to frost damage and form dry piles; too late will weaken the tree. Specifically, different varieties, winter cuts are also different. Such as Hongkui, Huang Kui, Zhu Guang and other germinating earlier; Marshal, Golden Delicious, Red Jade, green banana and other germinating later; Red Fuji, Guoguang germinating the latest. When pruning, first cut the early germinating and early maturing varieties, and then cut the late germinating late mature varieties. The same species, different tree age, tree vigor, pruning suitable for different periods. Generally, strong trees germinate earlier, and early shearing should be carried out. Weak trees should be cut in the evening. Adult trees should be cut early and early-aged trees should be cut in the evening; trees with pests and diseases should be cut later, and Wangshu can be postponed until the buds are trimmed. The same variety, different growth conditions, pruning period is also different. In general, fertile soil and convenient irrigation should be cut as early as possible; soil and mountainous areas, poorly-structured sandy beaches, and high groundwater levels should be cut first and then cut off. In the shade orchard, protectors must be applied on the cut to avoid freezing and drying. Protecting wounds is the key to pre-preserved rot Apple rot disease is the first of three major diseases. Through research, it is generally believed that there are four main causes of rot disease: weak tree vigor is the main cause of morbidity; secondly, improper management of soil, fertilizer, and water causes fruit tree nutrition. Poor; adverse climate effects and poor wound protection are also two of the incentives that cause rot disease. Therefore, it is certainly correct to carry out prevention and prevention in a targeted manner. However, the relevant fruit tree management personnel believe that previous studies on this disease still lacked understanding of many aspects of the occurrence of the disease through observation and research. They found that the disease that occurred at the excision site of rot disease accounted for about 80% of the total rot disease. No matter which season of the year, there is the possibility of infection by pathogens, but the infection rate in winter is the highest, reaching 63%. The reason for this result is that winter wounds are not easily healed, and winter pathogens can still germinate and invade. Therefore, pre-preserved spoilage becomes the key during winter pruning. The following 3 points must be observed when pruning: One is to select sunny days to avoid wet weather, such as foggy days, snow days, rainy days; Second, scissors or saws must be disinfected to disinfect the tools once they come into contact with the diseased branches. Third, whether it is winter or spring pruning, the rip saw must be smooth, and immediately apply a high-quality healing agent to seal and protect it. Surface Louver Fitting With LED Tube Surface Louver Fitting With LED Tube,Bright surface louver fitting For Efficient Lighting,T8 LED Mirror Louver Fitting Ningbo Wellway Optoelectronic Technology Co.,Ltd , https://www.wellwayopto.com