Planting method and time of "Green vegetable" asparagus

Asparagus is one of the most common green vegetables on our family table, mainly distributed in the south, rarely planted in the north due to climate reasons, it is rich in nutrition, but also has the effect of cooling blood and detoxification, so it is a more popular vegetable. Next, I would like to introduce to you the planting method and planting time of asparagus.

1. Planting time of asparagus

Asparagus is a sunny, hot and humid environment, seed germination requires a temperature of more than 15 degrees, so it is generally planted in April-July, while in the north, the temperature is relatively low, generally planted in June-August.

2. Planting methods of asparagus

1. Environmental requirements

Asparagus is not strict with the soil, but it likes viscous and fertile soil and likes high temperature and humidity environment. It can withstand temperatures of 35-40 degrees. The optimum growth temperature is 25-30 degrees. It is not resistant to frost, the stems and leaves will die in case of frost, and the temperature below 10 degrees will stop growing; it likes the environment with high air humidity, the environment is too dry, the fiber increases, the stem is thick and old, and the edible sense is reduced.

2. Sowing seeds

The epidermis of asparagus seeds is thick and hard, if directly sown and germinate will be very slow, affecting the planting cycle, and if it is long-term rainy weather, it may lead to seed rot. So soak the seeds in 50-60 warm water for 15-30 minutes before sowing, stir when soaking to avoid scalding the seeds, then soak them in clean water for one day, put them in the greenhouse to accelerate germination, rinse them once a day until a large area begins to whiten, and then sow seeds. Can sow or strip sowing, the amount of seed per mu is about 2 kg, after sowing, cover a layer of fine soil, watering to maintain soil moisture.

3. Field management

The growth of asparagus has a great demand for fertilizer and water, except when it is planted with sufficient base fertilizer, but when it grows to 5cm, it needs to be watered and fertilized to make it grow rapidly, and the soil should be watered frequently in the future to keep the soil moist. In addition, it is necessary to apply fertilizer in time after harvest, so that it can grow for the second time, and nitrogen fertilizer is the main fertilizer. In addition, although hollow cabbage can be closely planted to a certain extent, it is too close-planted, so that it can not accept light exposure and may rot.

4. Soil preparation and sowing

Asparagus is usually broadcast live. Turn the soil deeply before sowing, apply 2500-3000 kg per mu of rotten organic fertilizer or 1500-2000 kg of human feces and urine, 50-2000 kg of plant ash, and rake flat and fine after mixing with the soil. Before sowing, the seeds were first treated, that is, soaked in 50-60 ℃ warm water for 30 minutes, then soaked in clean water for 20-24 hours, picked up and washed and placed at a temperature of about 25 ℃ to accelerate germination. During the period of germination, the seeds should be kept moist, washed with clean water once a day, and then sowed after the seeds were broken. The amount of seed used per mu is 6-10 kg. Sowing is generally densely planted with strip sowing, with a row spacing of 33 cm and covered with soil after sowing. You can also use sowing or burrowing.