Planting and Management Technology of Jufeng Grape

In the planting industry, if you want to make a profit, it is not enough to rely on warm blood and brute strength. Just like a war, without a correct operational policy and concept, no matter how much manpower and material resources you have, it will be futile. Planting management technology is the combat policy and the best command on the planting battlefield.

Planting and Management Technology of Jufeng Grape

1. Timely sprouting and reasonable pruning

In the planting techniques of Jufeng grape, after sprouting in spring, double buds and small buds should be removed as early as possible to retain strong buds. It is necessary to pick the heart of the main shoot 2 or 3 times before flowering, erase the secondary shoot, transport more nutrients to the part of the floral organ, and properly remove part of the inflorescence, and pinch off the 1max, 4pm and 5x5 at the end of the inflorescence 3 or 5 days before flowering, so that nutrients can be concentrated to supply the remaining fruit. In winter, medium-long shoots should be pruned, leaving about 10-15 new shoots per square meter, which should be staggered up and down to ensure that the growth of grapes per panicle can reach 15-25 leaves, and the yield per mu should be controlled within 2500 kg. This can make the ears tight, the grains neat, mature and consistent, and improve the flavor and color of the berries.

2. Strengthen the management of fertilizer and water to prevent premature senescence of trees.

In the cultivation technology of Jufeng grape, the growth potential of Jufeng grape is strong, and the requirement of fertilizer and water condition is high. But irrigation should be moderate, especially stop watering 15-20 days before picking. It is necessary to control the amount of nitrogen fertilizer and increase the application of phosphorus and potassium fertilizer. At the beginning of a large number of fruit-bearing vineyards, we should pay attention to the application of fertilizer, keep the trees strong and prolong the full fruit period.

Watering: sprouting water once after the grapes are unearthed in spring. If the soil is not too dry before flowering, try not to water it. After Xiehua, the fruit enters the period of rapid expansion, which needs the most water and can be watered every 10 days. Wait for the fruit to start coloring and stop watering to increase the soluble solids content of the fruit. Before overwintering and burying the soil, pour a flood to make the grapes survive the winter safely.

3. Measures to improve the fruit setting rate of Jufeng grape.

The flower and fruit drop of Jufeng grape is a common problem in production. The main reasons are dysplasia of floral organs, inability to pollinate and fertilize normally, adverse climatic conditions during flowering, and malnutrition in trees. The following technical measures should be taken in production to improve the fruit setting rate of Jufeng grape.

Growth characteristics of Jufeng grape

The characteristics of water requirement for the growth of Jufeng grape have different requirements in humidity management: from bud germination to pre-flowering, the relative humidity should be controlled at 70%-80%; the flowering period should be relatively dry, which is conducive to anther opening and pollen emanation. too dry and prone to Corolla non-cracking, shedding and drying on the stamens, affecting fruit setting.

The producing area of Jufeng grape

The origin of Jufeng grape is Japan, which is a mid-mature tetraploid European and American hybrid. Oi used Ishihara Zaosheng as the female parent and Morita as the male parent in 1937. It was introduced in China in 1959 and widely planted in Pingyi, Longkou, Weixian, Changli, Hebei, Hengyang City, Hunan Province. It sprouted in the middle of April, bloomed in late May and matured in late July. It is cultivated in solar greenhouse and can be matured and listed in early August. Weixian grape has become the largest producing area in southern Hebei.

This kind of grape is rich in Buhe Town, Jingzhou City, Hubei Province. Malu area of Shanghai is also rich in this variety of grapes. Liaoning Gaizhou Jufeng and Hongti grapes, among which Liaoning Gaizhou Land Jufeng grapes were listed in August and Hongti grapes were listed in September, which are mainly sold to all parts of southern China, with large grains, black and purple color, sweet taste and resistance to transportation and storage. loved by consumers.

Matters needing attention in bagging Jufeng grape

1. Stabilize the tree potential

According to the reasons why the tree potential is too prosperous or too weak, we should take corresponding technical measures to adjust the tree potential to reach the moderate and prosperous tree potential. Excessively prosperous trees appropriately increase the amount of fruit and reduce the use of chemical fertilizer; too weak trees reduce the amount of fruit, increase the application of organic fertilizer, and improve the soil to rejuvenate the tree.

2. Calcium supplementation for young fruits

The absorption of calcium by grape is mainly in the young fruit stage, and the transpiration pull is transferred to the fruit with water. Therefore, it is advisable to spray available calcium 3 times before bagging to prevent grape diseases caused by calcium deficiency.

3. Standardize the use of drugs

Grapes are generally sprayed with fungicides and insecticides 3 times after fruit setting and before bagging to prevent the occurrence of black pox, anthrax, white rot and green bug bugs. General fungicides should be 10% Baolian 1500 times, 1.5% multi-antimycin 400 times, DuPont Foxing 5000 times, 10% high water dispersible granules 5000 times; insecticides can choose 2.5% imidacloprid wettable powder 2000 times or thiazuron 3 2000 times, etc. Spraying should be carried out before 9: 00 a.m. or after 4: 00 p.m., and should be uniform and thoughtful.

4. Standardize the bagging procedure

The paper bag should be made of wood pulp paper bag, with air holes and water leaks at the bottom; before bagging, the paper bag should be opened to make the air hole open; the bagging time should be after the keratinization of the pericarp, and the appropriate time for bagging should be 10 days before harvest. Bagging and bagging are suitable from 9 am to 11:00 and 3 pm to 6 pm on a sunny day to avoid wind and rain as far as possible.

5. Topdressing and irrigation

During the growing period, chemical fertilizer and watering should be applied a small amount for many times, and the concentration of foliar fertilizer spraying should be low. Generally, 0.2% of urea, 0.2% of potassium dihydrogen phosphate and 0.2% of potassium sulfate.

Planting Jufeng grape in addition to some conventional planting and management skills, doing well at some key nodes is also a magic weapon to win. Bagging grapes is something that most grape growers need to do. Mastering the above points for attention can help you get twice the result with half the effort.