1. Strengthen the comprehensive prevention of orchard pests and diseases
Recently, the rainy days are more frequent, and fruit farmers should do a good job in the prevention of kiwi fruit garden ulcer and bacterial flower rot.
For branches with severe ulcer disease, cut them off in time and apply Shiliu mixture stock solution to protect the mouth.
At the same time, combined with the prevention of bacterial flower rot, the whole garden spraying kasugamycin 400 times + Ai Miao 3000 times + Kung Fu 3000 times or 46.1% can kill 3000 times + 40% Fuxing 5000 times + 90% Wanling 2000 times , Spray once every 7~10 days, spray 3 times in a row.
Pay attention to the dosage when spraying, and it is strictly forbidden to overdo it.
2. Strengthen the management of fertilizer and water in orchards:
Topdressing sprout fertilizer in spring should be based on formula fertilization, and focus on the application of organic fertilizer. In the near future, use soil favorable moisture conditions, and timely topdressing sprout fertilizer.
The principle of fertilization is to use formula fertilizer with high nitrogen, medium phosphorus and low potassium, such as 25-10-5 or 23-12-5 formula fertilizer (0.5~1kg per plant) + biological organic fertilizer or organic fertilizer (0.75~1.5kg per plant) .
The method of fertilization is to use radial furrow application at two-thirds of the main pole of the tree, avoid deep furrow application or spreading.
3. Wipe buds and thin branches in time:
Wipe buds and thin branches in time to reduce nutrient consumption of the tree.
That is to say, the back buds, disease and insect buds, and extra buds that have grown to about 5~10cm from the mother branch should be thinned and erased in time.
Adjust the amount of remaining buds according to the strength of the resulting branches, and wipe them out in 2 to 3 times. Generally, one fruiting branch is kept every 15~20cm, and 10~12 normal fruiting branches per square meter of shelf surface are appropriate.
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