The main points of the latest course of asparagus seedling raising techniques and methods

Asparagus is a kind of vegetable with high nutritional value. Asparagus is rich in vitamin B, trace elements and various amino acids needed by human body. It is very helpful to human health. So now there are many people growing asparagus on a large scale, but how to raise seedlings when planting asparagus has become a job that many people need to do well. So the editor brought you the key points of asparagus seedling raising today. Let's take a look at it.

1. Land selection and preparation

The seedling bed of asparagus should choose the sandy soil which is rich in humus and has strong ability to preserve soil moisture. In order to reduce the harm of diseases and insect pests, the previous crops in the soil should not be fruits, tomatoes and other crops. Then, in order to improve the growth ability of asparagus, sufficient base fertilizer should be applied after selecting the land. The base fertilizer is mainly rotten farm manure, supplemented by compound fertilizer, which is layered into the soil and fully mixed with the soil. Then apply compound fertilizer again after a week or so, refine and crush the soil, properly spray carbendazim and other agents for disinfection, and then prepare the bed for planting.

2. Sowing seeds at the right time

Before sowing, we should soak the seeds in warm water of about 40 degrees for about 18 hours. Then prepare the sterilized river sand and mix it with the seeds. Put it in a cool and ventilated place to accelerate germination. When most of the seeds are white and the soil temperature is above 10 degrees, the seeds can be sown. The sowing time is generally in the spring every year, and the sowing amount should be controlled according to the planting area. The sowing method is mainly ditch sowing, the sowing ditch depth is kept at about 5 cm, and the plant row spacing is controlled for sowing. Cover the fine soil after sowing, gently step on the soil, increase the contact area between the seed and the soil, cover the soil with plastic film and pour water through it.

3. Seedbed management

When the seeds break the soil, the film should be opened in time, when the seedlings grow to about 65 cm, start topdressing, about once a month, about 3 times. Urea is the main product every time, and if the weather is relatively dry, it should be watered properly. Of course, water should not be too much, and if there is too much water, it should be watered in time, and then do a good job of ploughing. Especially after rain, prevent the soil from hardening and affect the growth of asparagus. Then the most important thing is to do a good job in the prevention and control of diseases and insect pests to avoid some unnecessary losses.

4. Transplanting and planting

First of all, it is necessary to apply sufficient base fertilizer in the field, mainly farm manure. Then transplanting was carried out in autumn when asparagus entered the dormancy period and the aboveground parts gradually withered and yellowed. Attention should be paid to grading when transplanting seedlings, according to the number of roots of seedlings. Those with more than 20 articles are first class, and those with 10-20 articles are first class, and their growth ability is determined by classification. When planting, we should pay attention to the planting density, generally by trenching and transplanting, covering the soil twice, gently compacting after the first covering, increasing the contact area between the root and the soil, and watering dilute dung water. Then the soil is about 5 cm again to improve the moisturizing capacity of the soil.

The above is a brief introduction to the main points of asparagus seedling raising. The breeding of asparagus is very important. It has a direct relationship to its yield, but also indirectly affects the planting efficiency. That's all for today's introduction. This article is for reference only. Thank you for your reading and support.