First, after the shed management grape sheds in the middle of February is more appropriate, after the shed can be unearthed, but do not rush to shelves, boring shed 1 week after the main vines horizontally tied to the first wire on the first, On the main vine, about 15 cm away from each other to retain a new shoot, the new shoots sprouted vertically upwards tied, in the 3 to 5 days before flowering, picking the heart, picking parts are generally in the inflorescence above 6 to 8 leaves as well, the top of the apical stay 4 to 5 leaves repeatedly picked up the heart, the outer inflorescence below the axillary tip all erased; the remaining cutting tip to leave 1 ~ 2 leaves topping heart, while the buds between the leaves are completely removed, after the top to make it no longer grow, and the rest All erased, only in the main vine bend, leaving a strong bud under the first wire to prepare the main vine, not the result, give enough space, according to the election when the culling of the planting method of shaping. In the winter, it was trimmed from the preparation of the main vine. Instead of the original main vine, the main manuscript was cut to 1.5 meters. After that, the cycle was repeated year after year.
Second, fertilizer and water management in September each year early basal fertilization, per acre high quality chicken manure 3,000 kg, circulatory fertilization 1500 kg, compound fertilizer 30 kilograms; germination before each mu forced urea 35 kilograms; young fruit expansion and the new tip long-term topdressing Special compound fertilizer 2 times, 50 kg per acre forced; 25 kg of potassium sulfate and 25 mg of ammonium phosphate per acre applied during the coloring period. Except that the grapes are unearthed and poured 1 time, water is poured after each fertilization and cultivating after pouring; After the nuclear agent and the bulking agent have been processed, the water supply of the plant should be fully satisfied, but watering should not be performed during the flowering period. At the same time, the spray was sprayed with 0.3% potassium dihydrogen phosphate or photosynthetic micro fertilizer every 15 days.
3. Temperature and humidity management After the shed is sealed, the greenhouse is sealed for about 1 week. During the day, the temperature is controlled at about 20°C, not to exceed 25°C, the night temperature is about 2 to 5°C, and the humidity is kept above 90%. Can not be too eager to step by step, to prevent the emergence of budding irregularities; germination to inflorescence out of the temperature 22 ~ 28 °C, humidity is about 80%; flowering temperature regulation at 25 ~ 30 °C, this period to increase the release of wind, sunny The tuyere is opened around 9:00 am and the tuyere is closed around 5 pm, so that the humidity is maintained at about 60%. During fruit setting and maturation, the temperature is controlled at 25 to 28°C during the day and the ventilation is gradually increased. When the temperature is stable at 18 °C, the skirt film can be removed first, and about half a month, the top film will be completely removed.
4. Treatment of non-nuclear agent and bulking agent Use grape high-quality fruit (a5-l, a5-2, b-3) and bulking agent developed and produced by the Basic College of China Agricultural University to increase fruit size by 20%~50. %. The non-nuclear rate is above 95%, and the sugar content is improved and the quality is excellent.
1. Before flowering, spikes: 3 to 5 days before flowering, individual plants in the shed have seen flowers. The majority of flower color changes from green to yellow-green. When the panicles on the flower spikes are separated, they are used per acre. 0.3 g of a5-2 is poured into 20 kg of clear water and stirred. Then 15 ml of a5-1 is poured and mixed. The liquid is filled in a plastic wide-mouth mug, and the flower spike is gently pressed into the liquid. Wet, so that each bud is evenly attached to the liquid.
2. About 5 days after flowering: At this time, the grape corolla has completely fallen off. When the young fruit develops to be slightly smaller than mung bean, pour 200 ml of b-3 into 25 kg of water. Stir the taro (mu dose). When growing up, use a larger container to hold the liquid, and make sure that all the fruit is glued.
3. 15 to 20 days after flowering: dilute the bulking agent stock solution into a 100-fold liquid scoop spike. This can be sprayed with a hand-held small sprayer, but be sure to spray all the liquid evenly on the fruit so as not to trap the fruit in the ear when harvested. There are non-colored green particles.
V. Inflorescence, Ear Management
1. According to the size of the spikelets and the nutritional status of the shoots, when the inflorescences are separated from the ear, the deputy panicles and spikelets are removed, and the top few panicles are removed appropriately, and the main spindle of the panicle is removed from the tip 1/4 to 1/3. , Tossing the head of the spike too long, so that the entire ear to retain 10 to 12 spikes, set fruit, if the ear is too large, too many fruit set, too dense, with a small scissors to loosen or cut some ears, sparse Have gone to the dense fruit, so that the ear shape is neat, the fruit particles are pressed against each other, usually 50 to 80 grains per panicle.
2. Bagging: After the treatment of the non-nuclear agent and bulking agent is completed, the ear is trimmed and the sterilizer is uniformly sprayed on the ear evenly, and the ear is then bagged. In the first half of harvesting, the fruit was first scattered from the bottom of the fruit bag and removed in the cloudy or afternoon of the week before harvest to promote fruit coloring.
6. Diseases and Insect Pests Control Grape vines and pests are generally lighter, mainly for prevention, spraying 5 degrees lime sulfur before germination, and chlorothalonil, thiophanate-methyl, Dasheng M-45, and multi-bacteria. Spirits spray once every 10 to 15 days, insecticides are killed with pyrethroid pesticides.
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