Jufeng grape flower and fruit management technology

Jufeng grape flower and fruit management technology

Jufeng grape is a grape variety with beautiful appearance and good taste, which is more resistant to storage and transportation. Jufeng grapes are grown in various regions of my country, with thick flesh, sweet and juicy. During the planting of Jufeng grapes, the management of flowering and fruiting periods is very critical, which will directly affect the yield and quality of Jufeng grapes. So how to manage the flowering period of Jufeng grape? Let's take a look with the editor.

1. Sparse flowers

7-10d before flowering, sparse flower spikes, remove diseased weak ears, over-dense ears, and deformed ears, reshape flower ears, sparse auxiliary ears and supporting shafts under the auxiliary ears, cut off 1/5 of the inflorescence ear tips if the ears are too long -1/4. Each fruiting branch usually keeps one ear, and the number of ears on the inflorescence is more than 18. Spray flowers to prevent diseases and insect pests after thinning flowers, but also apply fertilizer on leaves to promote inflorescence growth.

2. Fruit thinning

Thinning fruit should be determined according to the fruit setting. The purpose is to remove malformed fruit, small fruit, and over-dense fruit. Generally, the number of fruit per ear is controlled at 60~80. The first fruit thinning is performed 1 week after the flowering, first the diseased ears and the poor fruit setting ears are thinned; 2 weeks after the flowering, the fruit setting is stable, the second fruit thinning is performed, the relatively poor fruit ears are thinned out, and the fruit set The ears with high rate can remove some small supporting shafts.

3. Dingsui

Dingsui is the key to obtaining high-quality fruits and controlling production and improving quality. The yield is controlled below 22,500 kg/hm2. If the yield is too high, it will delay the fruit ripening period, uneven coloring, and lower quality. The standard panicle setting requirement is 400-500g per panicle weight and 35,000-45,000 panicles/hm2 per panicle. Each fruiting branch leaves 1 ear, the weak branch does not leave the fruiting ear, and as a result, the mother branch leaves the nutrient branch.

4. Fertilization management

Since the number of planting grapes is reduced after the production is controlled, the amount of fertilization per plant should be increased appropriately, and the application time can be appropriately early. The winter application of basic fertilizer was changed to autumn application, from late October to early November, combined with deep turning, the application of commercial organic fertilizer per hectare 15,000 ~ 25,000 kg or biological fertilizer 0.45 kg, and the application of calcium phosphate or calcium magnesium Phosphate fertilizer 750~1125kg, zinc fertilizer 30~75kg, boron fertilizer 15~30kg. Re-apply the strong fruit fertilizer at the end of May. After the flowers are flowered, 600 kg of potassium sulfate compound fertilizer is applied per hectare when the size of the young fruit soybeans.

In late June, in the late hard-core period, apply fruit swelling fertilizer, with potassium sulfate compound fertilizer 300~450kg per hectare. After the new shoots have grown 6 leaves, they can be combined with the prevention and control of diseases and insect pests. 0.2% potassium dihydrogen phosphate, 0.3% urea and boron, zinc, calcium and other micro-fertilizers can be used for multiple foliar sprays, which can significantly improve the quality and photosynthetic efficiency of the leaves. , Promote flower bud differentiation, early fruit ripening, improve fruit quality, make fruit flavor more intense, SOD activity is significantly enhanced, significantly improve fruit tree disease resistance, cold resistance and drought resistance. Farmers with conditions can use fertilizer and water irrigation systems to implement integrated irrigation of fertilizer and water to improve fertilizer utilization.

5. Moisture management

According to the grape plant's demand for water, implement staged management. The first sprout water, full irrigation at a time, around March 10th. The second flowering water takes place one week before flowering, around April 5th. The third fruit swelling water, from the beginning of June to the middle of July, must keep the soil moist for a long time. If the water is insufficient, it will easily cause fruit cracking, affecting fruit yield and spike shape. Vineyards with integrated water and fertilizer irrigation systems will be irrigated according to soil moisture and grape growth.

6. Prevention of diseases and insect pests

Jufeng grapes are susceptible to the erosion of diseases and insect pests during the flower and fruit period. Planters can adopt green comprehensive prevention and control of plant diseases and insect pests such as rain shelter cultivation, sweet and sour liquid trapping, pheromone color plate trapping, building biological insect nets, installing insecticidal lamps, etc. Measures to effectively reduce the occurrence of diseases such as downy mildew, acne, and gray mold.

The above is the management technology of the flower and fruit stage of the Jufeng grape. The flower buds of the Jufeng grape are well differentiated, and the growth momentum and branching strength are strong. The growers must strengthen the management of the flower and fruit period, increase the fruit setting rate of the Jufeng grape, reduce the fruit drop, and stabilize the yield. , I hope the above will be helpful to the grape growers.

Disclaimer: Some articles of this website are transferred from the Internet. If the legal rights of third parties are involved, please inform this website for processing. phone

Flood Light Camera

Flood Light Camera,Cctv Flood Light Camera,2Mp 3Mp Flood Light Camera,Waterproof Flood Light Camera

Shenzhen Zuomi Technology Co., Ltd. , https://www.nbbkvis.com