Cultivation techniques of Lycium barbarum L. in greenhouse

Lycium barbarum L. is a vegetable that has been planted for many years. Chinese wolfberry vegetables are planted in the greenhouse, covered with plastic film in winter, and cultivated in summer, balsam pear and towel gourd are shaded and humidified, which can achieve annual supply. The cultivation techniques are introduced as follows:

1. Raise seedlings. Generally, the robust branches of wild Lycium barbarum were cut and propagated from mid-February to early March. ① nursery bed ready. The plots with leeward direction, convenient irrigation and drainage and far away from pollution were selected to eradicate weeds and turn 15~20cm deeply in the middle of January. Every 667m2, mature human and animal dung 1000kg, fire and soil ash 1200kg were applied and raked evenly, and raked again in the middle of February, and the flat border was made according to border width 1.2m, ditch width 20cm, ditch depth 20cm. ② cuttage. From the middle of February to the first ten days of March, the annual strong branches of wild Lycium barbarum were cut, and the short branches about 15cm were cut as cuttings. The cuttings were cut evenly, and the cuttings were obliquely inserted on the seedbed according to row spacing 5cm and plant spacing 2cm, with axillary buds facing up. The cutting depth was 3x4 of cuttings, and the density was 500000 ~ 600000 / 667m2. Pour water after insertion, insert a 2m long bamboo bow every 1m, and then cover it with polyethylene agricultural film with thickness 0.014mm and width 2m to keep warm and wet.

two。 Transplant. In the middle of March, the soil in the greenhouse was deeply turned into 15~20cm, and 100kg quicklime was applied to disinfect every 667m2. Then compound fertilizer 20kg, mature cake fertilizer 100kg, mature human and animal manure 1000kg, fire soil ash 1500kg were applied every 667m2. After fine raking, the north-south flat border was made according to border width 1.2m, ditch width 20cm, ditch depth 20cm, with 4 rows per shed. In the first ten days of April, Chinese wolfberry seedlings with new roots and tender leaves were transplanted in 3 rows per row according to plant spacing 20cm and row spacing 40cm, and 4500 seedlings were planted in each greenhouse.

3. Fertilizer and water management. After transplanting Chinese wolfberry survived, 1500kg/667 square meters of mature human and animal manure or fire soil ash were applied every 30 to 40 days. According to soil moisture and the growth of Chinese wolfberry vegetables, they were watered every 15 to 20 days, and urea 5~10kg was applied to the fields with weak growth potential.

4. Temperature management. Chinese wolfberry vegetables in the greenhouse are produced annually. In general, in late October, when the daily average temperature drops below 15 ℃, cover the greenhouse film for heat preservation. In the first 5-7 days, large ventilation will be carried out. When the Chinese wolfberry seedlings slowly adapt to the greenhouse climate conditions, the greenhouse film will be covered strictly. In the first ten days of April, when the daily average temperature was more than 10 ℃, the film around the greenhouse was opened, ventilated and seeded, and the greenhouse film was removed one week later. In early July, when the daily average temperature of the outside world rose above 25 ℃, the sunshade net with a width of 6m and a shade of 70 per cent cooled down, and in early September, the shading net was removed.

5. The way home-cooked dishes are planted. In order to provide a good growth environment for Chinese wolfberry vegetables and avoid the high temperature season from July to September, crops such as towel gourd, balsam pear and lentils are often used for shading. The specific operations are as follows: raising seedlings at the beginning of March and transplanting at the beginning of April, leaving 40cm widths on both sides of the greenhouse, using 1.2m border width and furrow width 20cm as beds in the middle of the greenhouse, transplanting according to plant spacing 60cm, and planting one row of shade crops in each row. Set up the greenhouse in early May. It can not only produce home-cooked dishes, but also shade the growth of Chinese wolfberry vegetables.

6. Harvest. When the newly germinated shoots grow above 20cm, the tender shoots are pinched at the base before the basal leaves are aged. When picking and packaging, Chinese wolfberry leaves should be prevented from being mixed with sediment, weeds and other impurities.