1 selection

Blackberry garden soil texture to loam or sandy loam soil most suitable, soil pH 5.0 to 8.0 can be, but the best 6.0 to 6.5, the soil salt content should be <0.1%, the best soil thickness> 50cm, groundwater level to> 100cm . Most blackberry varieties need to have a minimum temperature of -15 degrees Celsius in winter, and require temperatures below 7.2 degrees Celsius in winter to be above 700-750 hours.

2 species selection

At present, the varieties that perform well in Nanjing include Hull, Chester, Boysen, Young, Triple Crown, Navaho, and Brazos. The development of blackberries should be based on the use of the corresponding species.

3 seedling selection

One-year-old cuttage seedlings are good, requiring more roots, thick seedlings, no pests and diseases. If the rooting seedlings are used at the top of the year, the plants with good roots and thick seedlings should be used. The size of seedlings should be the same, and seedlings should be planted separately. Seedling thickness:> 0.5cm (ground diameter); seedling length: 20 ~ 30cm.

4 planting establishment

Open the planting ditch or dig the planting hole. The width of the planting ditch is 50cm and the depth is 40cm. The length of the planting hole is 50cm and the depth is 40cm.

The best time for planting seedlings is from early February to early March.

When seedlings are planted, basic fertilizer should be applied. The type and amount of base fertilizer should be farmyard manure, and dosage should be 0.5-0.8m3 per mu. Can also be used for pollution-free use, N, P, K effective content of 25% organic compound fertilizer, 50 ~ 60Kg per mu.

The planting spacing of seedlings varies from variety to species, specifically Hull, Chester, Brazos, and Triple Crown: 250 cm×150 cm; Boysen and Navaho: 180-200 cm×130-150 cm; Young: 150-170 cm×120-130 cm.

The specific method for planting seedlings is to carry out the ditching or digging in the best winter season. After the ditching or digging, the filling should be immediately put in, and the backing soil should be 1/2 to 2/3. The basic fertilizer should be evenly applied to the ditch when planting. Or in the hole, and mixed with the soil, then the soil, the root system can not be contacted with fertilizer when planting seedlings, planting seedlings to the depth of the roots and neck into the soil is appropriate.

Irrigation: The root water should be poured thoroughly. In case of drought, it needs rehydration 2 or 3 times.

Plantations should establish irrigation and drainage systems, especially large-scale gardens. The drainage and irrigation system is based on topography and geomorphology. Generally, horizontal and vertical rows of 50 to 100m are used to open a row of irrigation ditch, and the width and depth of the ditch are preferably 60 to 80cm.

5 scaffolding

Shelves and specifications: cement piles or stakes, cement pile specifications vary by species, specifically Hull, Chester, Brazos and Triple Crown: 7cm × 9cm × 230 ~ 250cm; Boysen and Navaho: 6cm × 8cm × 210 ~ 230cm;: Young: 6cm×7cm×190~210cm. The wood piles have a thickness of 6 to 8 cm and a length of 200 to 250 cm; iron wires use 12 to 14 gauges.

Bracket spacing: 5 ~ 6m.

Trip time: It can be carried out after planting, at the latest by the end of the year.

Pull the wire: pull two wires in the first year, the first wire is 50cm to 60cm from the ground, the second wire is 50cm from the first wire, and the third wire is pulled in the second year of trimming and kidnapping, the third wire distance The second wire is 50cm.

6 General Management

6.1 Cultivation and Covering

According to the situation of weed damage, weeds are usually 3-5 times a year. It can be covered with the straw of straw and other crops, with a thickness of 8-12cm. Coverage time is generally in early spring, that is, in late February to early March. If covered, no cultivator can be used to rake the grass all year long.

6.2 Fertilization

6.2.1 Dressing

See seedling fertilization, Wang Changtian, topdressing with phosphorus and potash fertilizers, growth of poor fields, should apply more nitrogen fertilizer.

Fertilizers are mainly quick-acting fertilizers, which are generally conducted three times a year. For the first fertilization, from late March to mid-April, when sprouting occurs after sprouting, the fertilizer is dominated by nitrogen; the second time in mid-May, that is, fruit enlargement after fruit set, nitrogen fertilizer and compound fertilizer should be used. Mainly; for the third time in August, after the fruit matures (preferably the fruit of the year has been cut off and cleared out of the park), mainly compound fertilizer.

The type and amount of fertilization: urea 10Kg/mu, diammonium phosphate 20Kg/mu, potassium sulfate 30~40Kg/mu.

Application method: ditch application or acupoint application, cover the soil after the fertilizer is applied, if the soil moisture content is poor, topdressing should be combined with watering.

6.2.2 Fertilization in Winter

Winter ditching and fertilization, planting more than 60cm from the ditch, the width and depth of the ditch to 20 ~ 30cm is appropriate. Fertilizers should be based on farmyard fertilizers, with a dosage of 1.0-1.5m3 per acre, or an organic compound fertilizer with an effective content of N, P, K of 25% per acre of 80-100 Kg.

6.3 Drought and Drainage

Hilly areas are mainly drought-resistant in fall, generally drought, irrigation once every 10 days, each irrigation should be thorough, such as coverage can be a 20-day irrigation. Plains or low-lying areas should pay attention to the rainy season (Yangtze River basin is the rainy season) and do not drain water for a long time.

6.4 Pest Control

Do a good job in investigation of pests and diseases so that early prevention and early prevention and treatment, and prevention and control of pests and diseases can be conducted in accordance with pollution-free requirements. See specifically "Blackberry pollution-free cultivation techniques."

6.5 Pruning and Abduction

Summer topping: Usually in the early summer when sprouting and rapid growth occurs, when the sprouting height reaches 1.0 to 1.2m, it is picked up. After topping, the buds should be fixed on the wire.

Remove dead stems after fruiting: Generally in July and August (different varieties), remove the buds and collaterals from the roots of the previous year, and remove the dead plants and remove them from the blackberry garden.

Winter shaping pruning: from early December to early February. Pruning points are as follows: (1), cut dead branches, pests and diseases damage branches; (2), thin branches and over dense branches sparsely; (3), short cuts of the remaining robust and full of branches; (4), will be trimmed The branches are evenly tied to the wire. Generally, each branch has 8-12 thick branches and the average length is 100-120cm.

Kidnapping: Immediately after trimming, branches should be tied to the wire. Each branch needs to be spread out. Do not tie multiple branches together.

6.6 Fruit Harvest

Blackberry berry matures inconsistently, and it is harvested in batches, usually in 2 to 3 days. The most prominent feature of blackberry fruit maturation is the coloration of the berry surface. The fruit surface gradually turns red from the initial green color and eventually turns black and shiny. The harvest of the blackberry is determined by the use, transportation distance and conditions. Usually, fresh fruit sales are harvested at the ripening time of nine crops. When the transportation distance is long or canned, it can be harvested at eight matures; when the fruit is used for processing wine, juice, jam Harvest when fully mature.

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