Manage the flowering period of apple trees well to improve the yield and quality of apples

Scientific and meticulous management of flowering apple trees can effectively improve the yield and quality of apples and increase farmers' income. So how to manage the flowering period of apple trees?

Apple trees in flowering stage

I. Scientific thinning of flowers and fruits

Flower thinning and fruit thinning are effective measures to overcome apple size and improve apple quality. the effect of bud thinning is better than flower thinning, flower thinning is better than fruit thinning. Fruit thinning usually begins one week after the apple tree blossoms. The strong and prosperous apple trees with strong load capacity are less sparse, and vice versa. The amount of fruit thinning can be determined according to the following two methods: one is to thinning flowers at intervals, according to the number of flowers, to one or every few flowers; the other is to thinning fruit according to distance, generally leaving an apple 15-25 cm. When thinning fruit, pay attention to the central flower sitting fruit to stay, thinning edge flowers and fruits. Disease and insect fruits, deformed fruits, short branches and fruits on the back of the main side branches should be thinned, leaving drooping fruit, fruit-shaped positive fruit, and long round fruit. Generally speaking, according to the yield standard, according to the tree age, tree potential and so on. Determine the number of fruits left in a single apple tree.

Second, artificial assisted pollination

Artificial pollination is an important measure to overcome the influence of abnormal weather in the flowering period of apple trees, supplement the insufficient number of pollinated apple trees or improper planting, and improve the fruit setting rate of apple. Apple tree varieties with similar flowering period, sufficient pollen quantity and consistent cultivation and management should be selected. When pollinating, use a glass bottle to hold pollen, dip the rubber head of a pencil in apple pollen, and point it on the apple flower that just blossomed that day, preferably the central flower.

III. Releasing bees at florescence

Honeybee pollination can not only save labor, but also significantly improve the fruit setting rate of apples. Bees are used to collecting honey nearby, with a radius of about 200 meters. Therefore, there is a bee release group per mu of apple orchard, and each group places 4-6 boxes of bees.

Apple tree flowering period

Fourth, topdressing outside the root to improve the nutritional level of apple trees.

Spray plant baotailing (a bag of 30 jin water) solution 2-3 times before and after flowering, spray 0.3%, 0.5% Fruit King solution and magical plant Baotailing solution once before flowering, and spray 400 times Weilitai solution once after flowering. In addition, the auxiliary branches of apple trees can be ringly peeled 5 days after flowering to concentrate nutrients for apple growth.

Prevention and control of diseases and insect pests

Spray 30% peach Xiaoling 700-1000 times liquid before flowering to control pests such as Spodoptera litura and beetles, Xiehua spray umbrella leaf ban net 1200 times + 80% carbendazim 800 times liquid, control early deciduous disease, ring disease anthracnose and so on. Apple trees with 7-10 days of Xiehua should be sprayed with avermectin 70% to control leaf mites and aphids. Spray Weilitai 400 times liquid for the prevention and treatment of bitter acne.