Key points of seedling management of Lycium barbarum L.

The whole seedling period of Chinese wolfberry is about one year, so we should pay attention to the following management contents. Let's take a look at what needs to be done in spring and summer.

Break the membrane: after the seedlings survive, we first have to break the membrane, cut the seedlings, and directly use our hands to pierce the film at the cuttings. The seedlings should use hard branches to insert the film where they are about to sprout. So as not to hurt the seedlings when the temperature is high. In the future, we do not have to uncover the plastic film and let it continue to play a role in increasing the ground temperature. When the hot season comes, the plastic film will decompose and rot into the soil.

In front of us, we have applied enough base fertilizer, so during the growth period from April to June, we do not need too much management work to let the seedlings grow naturally. However, in July, when the seedlings grow to a certain height, a series of management work should be carried out.

Weeding and loosening soil: when the height of the seedling reaches about 30 cm, loosen the soil and weed for the first time to prevent the grass from growing more than the seedlings. The principle of early weeding and clean weeding should be grasped in weeding work. Loosening the soil combined with weeding was carried out. During this period, we weeded and loosened the soil two or three times.

Sprouting: when the roots of the seedlings grow out of the lateral branches, we should erase these lateral branches in time, lest they compete for soil and fertilizer and hinder the growth of the main branches. Wipe off the buds with your hands, and the older young branches should be cut off with pruning shears.

Fertilization: in order to improve the growth of Lycium barbarum seedlings, we apply fertilizer once in mid-late May to promote root growth, preferably mainly with phosphate fertilizer and supplemented with nitrogen fertilizer. 10 kg of ammonium phosphodiacid and 5 kg of urea were applied per mu. Mix the fertilizer evenly and sprinkle it around the plant.

Irrigation: irrigation, flooding and irrigation can be done after fertilization, and it is better to be thoroughly irrigated to meet the growth needs of the high temperature season. Promote the growth of seedlings with good water and fertilizer conditions. Irrigation should be carried out 4-5 times from summer to winter.

In September and October, in the well-managed nursery grounds, the seedlings grew to more than 60 centimeters tall and became big seedlings with exuberant branches. As we enter the autumn and winter season, what kind of management work do we need to do?

Weeding: there are also a lot of weeds during this period, and artificial weeding must be carried out. Weeding should be shallow. Fully weeding to avoid weeds grabbing fertilizers and spreading diseases and insect pests. We have to prune the branches after weeding.

Pruning: too many branches will hinder the growth of trunk branches and should be pruned. When pruning, choose a strong branch as the trunk and cut off all the rest. To ensure that the trunk is stout and uniform up and down. Seedlings that reach 60 centimeters in height should be cut off the main branches. It is also called heart-picking to control the growth height of seedlings. Cultivate into large seedlings with the first layer of lateral branches, super seedlings.

After pruning, in order to ensure the nutritional supply of seedlings, we should apply a fertilizer, mainly nitrogen fertilizer, supplemented by phosphorus fertilizer. Sprinkle two mixed fertilizers around the plant. Generally, 15 kg of urea and 5 kg of phosphate fertilizer are applied per mu.

Prevention and control of diseases and insect pests: prevention and control of diseases and insect pests of Lycium barbarum at seedling stage. Mainly use scissors mites 2000-2500 times liquid, 10% imidacloprid 1000-1500 times solution, about the middle of October, once every seven days, three times in a row to control aphids, gall mites and spider mites.

Seedlings overwintering: the leaves of Lycium barbarum seedlings in the nursery turn yellow in late autumn and fall off after frost, but they can survive the winter in the nursery without special management. Waiting for the emergence and planting of seedlings in the coming spring.