(1) build a garden is best to choose well-drained, deep soil, soil organic matter content ≥ 2%, soil ph value of 6 ~ 7, sunny flat or gently sloping land to build a garden. If the organic matter content is low in the piece of land planting, tillage should be more organic fertilizer. Blackberry planting is preferred in early spring before sprouting. Medium-fertility lot spacing 1.5 meters, row spacing 2.0 meters, that is, 222 plants per mu planting. Fertility of the high piece of land plant spacing can be increased to 1.8 ~ 2.0 meters, row spacing unchanged. The hole planting method, the depth and diameter of the planting hole are 50. in the soil is sticky and thin low hill wasteland planting, can be used in the ditch planting method, that is, along the rows to open a planting ditch 50 cm wide and 50 cm deep, the average planting of cake fertilizer 0.5 ~ 1 kg or soil fertilizer 10 ~ 15 kg. When planting the root system and fertilizer separation, mulch depth to bury to the root neck is appropriate, planted in a timely manner after watering the root water to ensure that the seedlings survive.
(2) timely frame tied trailing Hull and Chester are semi-erect varieties, it is best to erect a stent at the same time as the planting, so that the branches issued in a timely manner tied trailing on the shelf. The general use of hedge wall cultivation, planting rows every 5 to 6 meters to set up a pillar (cement columns, stakes can be), pillars buried in the soil under 0.7 meters, leaving the ground 1.8 meters high. After burying the pillar on which to pull two or three wire, and at both ends of the ground stakes pulled tight, fixed wire, branches on the shelf using fan-shaped tie.
(3) pruning the first pruning in May ~ June, when the height of the sprouting branch reached 1 ~ 1.5 meters when centering, control the height and promote the growth of lateral branches. Then the sprouting branches, lateral branches in time to lead tied to the wire to increase ventilation and light. The second time in August ~ September, when the fruit harvest is finished fruiting mother branch gradually withered, the old branch from the base cut off, and clear out of the bracket. The third time in December after leaf fall or early spring before germination, in line with the principle of light pruning, will be disease and insect branches and frozen branches all cut out, and thinning out weak branches and overcrowded branches, and then the rest of the branches for the short cut, and then evenly tied in the bracket. Generally, each plant can leave 10~15 strong side branches, branch length 1.2~1.5 meters. If you need to propagate, you can cut the branches in winter and select the strong ones to be shortened and buried in the soil, and use them as plugs in the future.
(4) Fertilizer management every winter comprehensive tilling once a year, at the same time each plant applied cake fertilizer 0.5 ~ 1 kg for base fertilizer. Growing season chasing fast-acting fertilizer, the first time in mid-May (before flowering), the second in June in the first and middle of the fruit development period. Fertilizer nitrogen, phosphorus, potassium fertilizer with, if the garden soil effective phosphorus is higher than 35 mg / kg, effective potassium is higher than 200 mg / kg, then to chase the nitrogen fertilizer is the main, on the contrary, should be supplemented with phosphorus, potassium fertilizer. During June to July, if there is insufficient rainfall, irrigation should be carried out in time to ensure fruit development. If there is too much rain, attention should be paid to flooding, and the entire growing season requires a number of plowing and weeding.
(5) pest control blackberry disease is not heavy, just in the case of too thin soil and planting and no fertilizer, the plant will appear after germination leaf crumpling phenomenon. Strengthen the management will gradually disappear by itself. In Nanjing, pests mainly include golden tortoise, small weevils and other hazards to the newly sprouted shoots, starry nightshade hazards to the base of the stem, bugs, flies and other hazards to the fruit. For different pests to take the appropriate pesticides to control. In the winter plowing and turning for a clear garden.
(6) Harvesting and processing Blackberry maturity period is relatively long, need to be staged batch harvesting. When the fruit from red to black, the texture from hard to soft is ripe. Harvesting in the morning between 5 ~ 10 o'clock. Fruit picking containers should not be too large and too deep, in order to prevent the fruit from squeezing each other and breakage and decay. After harvesting the fresh fruit should be processed on the day or into the cold storage temporary storage, the next day must be all processed, therefore, should be built on the spot processing plant. At present, Jiangsu Province, blackberry processing products are mainly juice drinks and canned sugar water. In the past 1~2 years, the production of quick-frozen fresh fruit, and for export. Juice processing can be used to press method and leaching method, the former is more applicable, short pressing time, speed, suitable for mass production, and can maximize the retention of fruit pigment and nutrients. The process flow of fruit juice production is as follows: selecting fruits → washing fruits → heating and softening → pressing → coarse filtration → fine filtration → homogenization → deoxygenation → concentration → sterilization → filling → cooling → inspection → refrigeration. Processing sugar water canning process is: fruit selection → fruit washing → canning → sugar solution → sterilization → sealing → cooling → inspection → storage.
(7) seedling cultivation blackberry can be cuttings, pressure, root tiller, group culture and other methods of reproduction, at present the main use of hard cuttings and root tiller seedling, under the conditions of the place can also be used to shoot cuttings method. ① Hard branch cuttings In the winter pruning (December after the fall of the leaves), will be strong and full of disease-free branches cut into long 8 ~ 12 cm, with 2 ~ 3 buds of the plug, sand storage, early spring before budding (about in mid-February before and after) cuttings. Bury the cuttings in the soil 3~5 cm, 40~50 cuttings per square meter. After the insertion of sufficient water, and covered with straw, and then often keep the soil moist. Good management when the survival rate of up to 40% ~ 50%, high in more than 60%, the winter can be out of the nursery. Cuttings out of the nursery after the soil remains a lot of root segments, can be used to continue to breed seedlings. Specific method is to apply a small amount of organic fertilizer in the nursery in winter, shallow turning once, the fertilizer pressed into the soil, early spring for the bed, dry watering once, to April can sprout a large number of root tiller seedlings, each square meter to stay about 20 seedlings, after the management with the general nursery. ② shoot cuttings in mid-July to early August in the shade, fully automatic spray conditions for shoot cuttings, bed soil with peat and sand, mixed 1:1, 7 to 10 days after insertion can be rooted, the survival rate can be as high as 80% to 90%. A month later moved to the open ground, strengthen management, the following spring can be out of the nursery.