According to the experiment, the yield of asparagus with wax fertilizer is 20%-30% higher than that without wax fertilizer. Generally, 2000 kg of decomposed pig manure, 50 kg of cake manure, 50 kg of calcium superphosphate, 0/500 kg of decomposed human manure, 0/5 kg of urea/kloc, 25 kg of phosphorus and 25 kg of potassium fertilizer are applied per mu, so nitrogen and phosphorus must be applied repeatedly as relay fertilizer, and the temperature in the early stage of bamboo shoot picking is low, so it can be applied in furrow. With the increase of temperature, it can be applied.

When the thickness of frozen soil reaches 1 m, it can still survive the winter safely. Although the output is low, the quality is good. 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 in cold areas will wither,

Asparagus is a perennial herb. After planting, it can be harvested continuously for 10 ~ 15 years. Therefore, it is the basis of high quality and high yield to choose excellent hybrids with disease and insect resistance, strong adaptability, short dormancy period, cohesive scales, green and strong tender stems and good commercialization. The dosage of seeds is generally 40 ~ 50g/mu. For example, yield, quality, price, market conditions and so on will have an impact on the benefits of planting asparagus in greenhouses. One thing to consider is that asparagus is a perennial herb, which can be harvested many times a year for many years. If it is planted in solar greenhouse out of season, it may disrupt the planting and harvesting laws of the natural environment.

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. For the healthy growth of asparagus, asparagus seeds should be purchased from professional asparagus breeding institutions. Asparagus seeds should be well developed, large and full, and free from pests and diseases. At the same time, according to the production conditions and market demand, select special hybrid varieties with disease resistance and cold resistance for overwintering greenhouses.