August to early September is the second peak period for the expansion of Yali pears. Good management is essential for improving the yield and quality of Yali pears.
Fertilizer management
This period is the perfect period for the differentiation of flower buds, and the demand for fertilizer is more urgent. It is necessary to pay close attention to applying a quick-acting fertilizer. According to the size of the tree and the amount of fruit, each plant is topdressed with 1.5 to 3.5 kg of three-element compound fertilizer with medium nitrogen, low phosphorus and high potassium, and 0.3% potassium dihydrogen phosphate solution is sprayed on the leaves to promote fruit expansion and improve fruit quality Sugar content. In the rainy season, there is a lot of precipitation, so pay attention to timely drainage to avoid retting. Pay attention to watering when the weather is dry to meet the water demand during the fruit expansion period.
Hanging branches and supporting branches increase the pressure on the fruit branches of the tree. In order to prevent the fruit branches from splitting and breaking, the fruit branches should be hung up with straw ropes, or the fruit branches should be supported with wooden poles with branches.
Pest Control
August and September are in the rainy season. High temperature and high humidity are conducive to the occurrence and spread of diseases and insect pests, which should attract great attention.
Black spot disease is a devastating disease in the production of Yali pear, and great efforts must be made to strictly control it. Do spray prevention before rain and spray prevention after rain. The medicament can choose 40% DuPont Fuxing 10000 times liquid, can kill 3000 times liquid, 10% Difenoconazole 3000 times liquid.
Rhizoctonia can be treated with 80% tebuconazole 5000 times solution, 68.75% DuPont Ebao 1200~1500 times solution, 60% B·multi 1000 times solution.
Tenebrio molitor can be controlled with 10% imidacloprid 2000 times solution, 5% acetamiprid 1500 times solution + 4.5% beta-cypermethrin 2500 times solution.
Heartworm can be controlled with diflubenzuron 1000 times solution + 4.5% beta-cypermethrin 1500 times solution.
Disclaimer: Some articles on this website are transferred from the Internet. If the legal rights of third parties are involved, please inform this website for handling. phone
Zhejiang Industrial Group Co., Ltd. , https://www.xingyeseafood.com