Cultivation techniques of Red Earth Grape

Red Earth grape is a kind of grape with thick skin and crispy meat, which is widely planted because of its high yield and storage tolerance. What are the red earth grape cultivation techniques?

1. Land selection and preparation

Red Globe grape should choose sandy soil or loam land rich in organic matter, the soil acidity and alkalinity is neutral or slightly acidic, avoid planting in low-lying water areas. Then plough the land deeply, dig trenches according to the measured row spacing, the width and depth are more than 50 cm, and store the plants in the topsoil and inner soil. After digging the ditch, sow corn stalks and other crops with a thickness of 10 cm at the bottom of the ditch, and add 10 kg of urea per mu, which is helpful to promote the decomposition of organic matter. Then spread 5000 kg of farm manure and 50 kg of compound fertilizer, apply it according to the actual demand, add topsoil to fill evenly into the bottom of the ditch, cover the bottom soil, irrigate and settle, loosen the soil and preserve soil moisture.

2. Planting

The main results are as follows: (1) the planting time is generally about April 10, and it is suitable for green seedlings on May 10 ~ 25.

(2) planting mode: small scaffolding was adopted, the row spacing of grape plants was 1 × 1.5 × 3 meters, and about 200 plants were planted per mu. The row spacing of grape plants cultivated with hedgerow is 1.52m × 1.53m, and 111mm 296 grape plants are planted per mu.

(3) planting method: first dig 80 cm square planting ditch, apply farm manure 5000kg to 10000 kg per mu, mix with soil layer and backfill, then plant seedlings. Spring planting is mostly used in the north, and field planting can be carried out in the middle and last ten days of April. Remove the binding material outside the graft joint with a sharp knife before planting (the rootstock germinated on the lower part of the graft joint should be erased in time after the grafting seedling survives, so as to ensure the purity and growth of the variety). The seedlings buried in the soil caused by the root neck and sufficient planting water, and then buried in a small soil pile to moisturize and prevent drying, so that it germinated earlier.

3. Management technology after planting.

(1) Cold protection: the cold protection time of red earth grape burying soil is carried out after winter shearing to before soil freezing. The method of covering soil and burying vines is generally used to remove dead branches and fallen leaves in the garden after winter shearing and disinfect seedlings and frames with 3-degree stone-sulfur mixture.

(2) pruning: the period of winter pruning of Red Globe grapes begins in mid-November and ends in early and mid-December. In the first year of winter shearing, the secondary shoots on the main vines were all removed, the secondary shoots that were more than 0.8 cm thick could be cut short by 3-4 buds, and the cut thickness of the main vines was 0.8-1 cm, which was well mature. the whole pillar tree was about 1.5 meters high, and the fruit could be hung in the second year.

(3) fertilization: organic fertilizer is the main fertilizer, and foliar fertilizer is sprayed according to the need in the growing season. General mu application of soil miscellaneous fertilizer or ring manure, green manure, etc., should pay attention to reasonable topdressing, topdressing 3 times 4 times a year.

(4) bagging: when the fruit reaches the size of the bean grain (that is, about 20 days after flowering), the fruit treated with expanding agent will be sprayed with 1000 times methyl topiramate, and the solution can be dried with a special grape fruit bag, or a self-made newspaper bag can be used to cover the ear. Remove the fruit bag days before fruit picking, which can avoid the harm of diseases and insect pests and improve commerciality.

(5) pest control: control Botrytis cinerea and ear axis brown blight before and after flowering, pay attention to the occurrence and control of powdery mildew after fruit setting, and prevent white rot during fruit expansion. After removing the bag, the sterilization and protection effect of 1500 times Bilu No. 2 liquid is very good, and it will not produce drug damage and spots.

Generally speaking, the red earth grape is very good to cultivate, as long as select a good site, dig a good field, and then plant seedlings, do a good job of water and fertilizer, pruning, bagging and other work.