When picking bamboo shoots, observe whether there are cracks and tiles on the ridge surface, and then gently peel off the soil by hand. When the buds are exposed about 5 cm, the shoot tips or other growing buds shall not be damaged. Hold the stem tip 3cm by hand, insert the knife into the soil at an angle of 75 with the ground, and remove the diseased plants and mechanically damaged plants in time according to the growth status of the mother stem. Generally, the stem is changed once in July, and the stem of 60 cm is changed. Before leaving the mother stem, during changing the mother stem and after harvesting the mother stem, use 2 bottles of asparagus net for soil disinfection per mu at a time.

Harvesting can be carried out in April-June or September-165438+1October, and it can be harvested twice a year. Method of picking bamboo shoots: before picking bamboo shoots 1-2 weeks, cultivate the soil, pay attention to the phenomenon of cracks and tiles on the ridge surface when picking bamboo shoots, pull the soil apart, hold the tender stems by 3cm when the tender buds are exposed by 5cm, and then harvest them along the rhizome direction with a knife, thus avoiding the peak of disease caused by high temperature and high humidity weather in July, reducing the number of drug use and reducing the cost. Rational fertilization. Increase the amount of organic fertilizer and phosphorus and potassium fertilizer, and appropriately control the amount of nitrogen fertilizer. It can increase soil organic matter, loosen soil, promote the robust growth of asparagus stems and leaves, and improve disease resistance.

Asparagus grows rapidly, which requires high water and fertilizer management, and is fertilized three times a year. Asparagus should not be picked in the first year after being potted at home. After the plants in northern beginning of winter stop growing, it is suggested to cut off the parts exceeding 15 cm from the roots and then let asparagus hibernate. When the temperature of 5 cm soil layer reaches above 10℃, seeds can be planted and seedlings can be raised in protected areas. It can be sown in about 70 days, and it can be sown from spring to autumn according to different stubbles.

The initial germination temperature of asparagus seeds is 5℃, and the optimum temperature is 25 ~ 30℃. When the temperature is higher than 30℃, the germination rate and germination potential decrease obviously. Breeding with seeds can continue to grow for more than 10 years. In winter, the aboveground parts wither, and the rhizomes and fleshy roots enter dormancy and overwinter; In warm areas in winter, the dormancy period is not obvious. Remember, when cultivating asparagus, you can't leave unfermented compost and leaves in the soil, otherwise it will rust easily.