Fertilization scheme for management experience of Hongtikrisen grape cultivation

Cryson grape, a grape variety introduced from the United States in 1997, is also called Kronson grape because of translation. After more than 20 years of trial cultivation, Crisson grape has been planted on a large scale in both the south and north of China, and it is one of the important varieties in China's grape industry at present. Although it is widely planted, the market prospect of Crisson is still good. Last year, some orchards still sold for 8.5 yuan per jin.

The main vine of Crisson is relatively brittle, and the frame buried in winter is easy to break. It is recommended to bend on the shelf and tilt to tie it up. The buried soil should be taken from afar to avoid the freezing damage of the root system. After being unearthed, don't rush to get on the shelf, put the main vine flat, which is beneficial to sprout consistency.

Based on the fact that Crisson belongs to the prosperous type, it is recommended to use the horizontal posture, cancel its top advantage, and balance the tree potential is beneficial to high yield. When cutting in winter, the secondary shoots on the particularly strong shoots must be retained, and the elongated shoots of the main vines and the preparatory branches can be left with a length of about one meter. As a result, the branches were cut short with 4-6 buds.

Cryson belongs to the growing type, so it is necessary to control water and fertilizer, especially nitrogen fertilizer, and never use it in budding fertilizer. Mainly apply phosphorus and potassium fertilizer and farm manure. Every year, it is necessary to deeply turn and enlarge the hole in order to take root and improve the fertilizer efficiency. Eat less and eat more. In the year of heavy snowfall in winter, attention should be paid to the control of irrigation, and budding water should be delayed. Inflated water must be thoroughly watered. Must apply overwintering fertilizer!

The 3-leaf stage begins to wipe the buds for the first time, removing the weak buds in the double buds and the incomplete buds; 4 the branches are fixed at the 6-leaf stage, the dense squeezed branches are removed, and the bad branches without tidbits are removed, and the yield is set at 1000 Muir 1500; more branches should be left in the areas with wind damage. Pick out all the new tips a week before the flower. Including the main vine extension branches and vegetative branches, in the case of space is not allowed, the reserve branch can be five-leaf heart. If the fertilizer and water are managed properly, the length of the new shoots before flowering should be kept at 90 cm. If it is more than one meter, it will be too prosperous.

Krisson mainly includes: penetrating wall lice, downy mildew and powdery mildew. The main reason is that the stone-sulfur mixture is not sprayed well before burying in spring and winter, and it is sprayed with transdermal-avermectin; downy mildew and powdery mildew are mainly prevented. Spray the tree with Baitai and Antaisheng and boron fertilizer before flowering. Or DuPont-Yi Bao spray trees.

Boron fertilizer should be applied not only by spraying but also by root. Thinning flowers and fruits and vegetables is early. Pull the ear, mix gibberellic acid with water 30 murmurmi 40 liters, and pull the ear when the Elaeagnus angustifolia blossoms. If you spray the ear with a spray, add synergist and brassinolide if necessary. Dilated, packed with gibberellic acid in one gram with 20% content, the same in front. Add 15-20 liters of water and soak the ear.

It is forbidden to spray thiazuron, brassin, gibberellic acid, indoleacetic acid, naphthoacetic acid, etc.; be careful to use PBO, paclobutrazol, uniconazole, trimethoprim, etc.; humic acid and amino acids are also best not to use.