What to pay attention to in the management of grape flowering and fruiting period
Core content of this article: small experience of plant cultivation on what to pay attention to in the management of grape flowering and fruiting period, next[]the editor will introduce.
What to pay attention to in the management of grape flowering and fruiting period
It is now the flowering and fruiting period of grapes, and the physiological fruit drop period begins 2-3 days after the grapes bloom. The growth period of the berry is from the enlargement of the ovary to the coloring of the berry. In general, the management methods of grapes in different periods are different. In order to effectively ensure the correct flowering and fruiting period, we need to do a good job in this aspect of management. How to do it? Let's find out.
Flowering and fruiting period, sugarification period
The management during this period is to promote fruit setting and berry expansion, control nutritional growth, promote fruit growth, quality formation, and branching enrichment. Fertilization and watering can be carried out 10 days before flowering; 3-7 days before flowering, trim the fruit cluster, remove the shoulder, thin the small cluster, expose the tip of the small cluster, and leave 13 small clusters per cluster. Pay attention to the prevention and control of green smelly insects, thrips, scale insects (powder insects, eastern caterpillars, etc.) and leafhoppers. Bifenthrin and lambda-cyhalothrin can be effectively prevented and controlled 7-5 days before flowering.
Key points of topdressing measures during the grape flowering and fruiting period
At the end of the physiological fruit drop period, when fruit setting is stable, that is, 10-15 days after flowering, topdressing should be done in time. The topdressing is mainly compound fertilizer, with 30-60 kg of ternary compound fertilizer (or diammonium phosphate) per mu, 20-60 kg of potassium sulfate, for a total of 2-4 times. There is also a good root fertilizer, which has a good effect 7 days after vegetables and fruits.
Handling after fruiting and bagging of fruit clusters
Bagging measures should be taken before grapes set fruit.禁止使用代森锰锌、代森锰锌、三唑酮、复星、波尔多溶液等 chemicals that can leave marks on the fruit surface, before bagging, vegetables and fruits can be trimmed one by one, with 30-80 grains per cluster, not exceeding 100 grains. Diseased fruit, insect-infested fruit, malformed fruit, seedless fruit, and tightly attached fruit inside can be removed.
Cover bags can be selected with waterproof, insect-proof, and disease-proof effects, generally 380mm× 280mm in size, with a water-permeable hole at the bottom. In addition, bagging can begin after the physiological fruit drop. To prevent fruit from sunburn, it is necessary to properly preserve the summer buds to effectively prevent sunburn.
Precautions after bagging grapes
After bagging, it is necessary to strengthen cultivation management. If high temperatures occur during the growth period, the watering interval should be shortened, the watering frequency increased, and the temperature under the shelves reduced to minimize burns. Spray fungicides every 10-15 days to prevent grape downy mildew and grape powdery mildew. In rainy years, the number of sprays and the concentration of the medicine should be increased.
The above () introduces all the contents of what to pay attention to in the management of grape flowering and fruiting period for you, and green plant enthusiasts can refer to this aspect.