How many years have winter jujube been planted?

Winter jujube is currently a high-quality cultivated variety for workers, also known as frozen jujube, Yanlaihong, apple jujube, Bingtang jujube and so on. It has been planted in Shandong, Shaanxi and other places in China. How many years does the winter jujube bear fruit?

First, how many years have winter jujube been planted?

Winter jujube can bear fruit after planting for 3-4 years, and its fruit matures in the early and middle of October, and the especially late ripening varieties are delayed to mature in late October. The main varieties include: Chengwudong jujube, Lubei Dongzao jujube and Xuechengdong jujube, long jujube, donkey milk jujube and so on.

Second, what are the planting techniques of winter jujube?

1. Land selection and preparation

It is appropriate to choose garden fields with sufficient sunshine, open terrain, deep soil layer, loose and fertile soil, good drainage and certain irrigation conditions. The planting holes of 80-100cm in length, width and depth were dug before planting, and farm fertilizer 40-50kg and phosphate fertilizer 1.5kg were applied. Fertilizer and soil must be well mixed and watered after backfilling.

two。 Selection and planting of seedlings

Jujube seedlings should choose strong seedlings that are healthy, disease-free, well-developed root system, drought tolerance and strong adaptability. Generally, the number of colonized plants per mu is about 55 × 110 plants, and the planting density is 2 × 3 meters or 3 × 4 meters. Winter jujube has higher requirements for light conditions, so it is appropriate to set the row direction to the north-south direction when planting.

3. Fertilizer and water management

Winter jujube needs a large amount of phosphate fertilizer in the process of growth, and each seedling can apply 0.5 kg of calcium superphosphate and 25 kg of organic fertilizer during planting. Chemical fertilizer was applied once in late May, June to July and early August respectively. Farm manure can be applied in autumn, 50-70 kg of farm manure and 0.5-1 kg of nitrogen and phosphorus fertilizer per plant. The time for watering jujube trees is before sprouting, before flowering, during the expansion period of young fruits, and before overwintering. Drainage should be done in time during the rainy season.

4. Picking the heart and thinning the fruit

The jujube head was coring in the early period of flowering in late May, and the second branch was coring in early May. Before flowering, 10% Liuyangmycin was sprayed 1000 times + 10% nicotine EC + tocopherol 800 times to control insect pests. Fruit thinning should be carried out in the young fruit period in July, one fruit for each jujube in the exuberant tree and one fruit for every three dates in the weak tree, which can reduce the occurrence of fruit drop.

5. Pest control

The diseases and insect pests of winter jujube include black spot, rotten fruit, jujube armyworm, beet armyworm, spiders and so on.