When will the latest asparagus come on the market?

Asparagus is the tender bud of asparagus of Liliaceae, also known as southern bamboo shoot, dizhu bamboo shoot, dew bamboo shoot, etc., similar in shape to the tender bud of grass plant reed, natural wild, rich in nutrition, unique in flavor, set natural wild and green organic characteristics in one, with high edible value, let's take a look at when asparagus will be listed!

When does asparagus come in?

Asparagus market time varies according to geographical environment, North China usually in mid-April began to harvest shoots. The continuous date of shoot collection varies with the age, climate, soil quality, fertilizer management and other conditions. When the number of shoots decreases and becomes thin, the harvest must be stopped. If the harvest period is excessively prolonged, the growth date of green stems and branches will be shortened, and the production and accumulation of nutrients will decrease, affecting the yield of tender stems in the second year. Generally, the harvest period of the first year is 20~30 days, the harvest period of the second year is 30~40 days, and the harvest period can be extended to about 60 days.

Where does asparagus grow?

Asparagus originated from the east coast of Mediterranean Sea and Asia Minor. There are still wild species in grassland and valley areas of Europe, Asia and North Africa. It has been cultivated for more than 2000 years. It was introduced into America in the 17th century, Japan in the 18th century and China in the early 20th century. It has been cultivated in all countries in the world, most of which are in the United States. Cao County, Heze City, Shandong Province, is known as "the hometown of asparagus". Every spring, a grand asparagus festival will be held.

Environmental Conditions for Asparagus Cultivation

1. Temperature: Asparagus has strong adaptability to temperature, both cold and heat resistance. It can be cultivated from sub-cold zone to subtropical zone, but it is most suitable for temperate cultivation with four distinct seasons and pleasant climate. In the cold zone, temperature-33℃, frozen soil thickness of 1 m, can still safely winter, although the yield is low, but the quality is better. The germination rate and germination energy decreased obviously when the temperature was higher than 30℃.

2. Soil: Asparagus is suitable for sandy loam rich in organic matter. It grows well in fertile soil with loose soil, deep soil layer, fertilizer and water conservation and good permeability. Asparagus can tolerate mild salt and alkali, but when the soil salt content exceeds 0.2%, the plant development is obviously affected, the absorption root shrinks, the stem and leaf are thin and weak, and gradually dies. Asparagus has a strong adaptability to soil pH, all pH 5.5~7.8 soil can be cultivated, and pH6~6.7 is the most suitable.

3. Moisture: asparagus transpiration is small, root system is developed, and drought tolerance is relatively high. However, too dry in the shoot picking period will inevitably lead to thin tender stems, shrinking growth buds and serious yield reduction. Asparagus is extremely intolerant to waterlogging, water will lead to root rot and death, so planting plots should be high and dry, pay attention to drainage in rainy season.