Every spring from March to May, and autumn from September to1October, it's the best time to dig up the ground vegetables. It's easy to find the newly grown ground vegetables on shady hillsides, grasslands or rotten roots. At this time, the ground vegetables are very fat, thick, exquisite and translucent, and they are easy to be found.

Nostoc commune itself is a kind of cyanobacteria named Nostoc commune. In the process of growth, Nostoc commune will be wrapped by a gelatinous substance, and then the algae filaments inside will be bent and twisted to form Nostoc commune. Generally speaking, ground vegetables live in humid environment, such as the Yangtze River and Yellow River basins, especially in rainy season, ground vegetables will quickly absorb water and swell up, so it is a very good time to pick them up after rain.

Artificial planting method of Chinese cabbage

1, soil conditions

It is suitable to grow in fertile soil with high calcium content. When planting it artificially, it is necessary to choose sandy loam with good drainage, and then apply decomposed livestock manure and calcium superphosphate to the soil to improve soil fertility and provide nutrients for the growth of it.

2, the correct planting

When planting groundsel, it is necessary to cut wild groundsel into 3cm long pieces and bury them in the soil, and the planting depth is about 2cm. Clean and loose fine soil should be prepared, mixed with decomposed sheep manure, and then evenly spread on the soil surface to promote the rapid germination of groundsel.

3. Watering method

Ipomoea japonica is a wet-loving plant, which needs sufficient water during its growth. When cultivating Ipomoea japonica, it needs to be watered 1-2 times a week to keep the soil moist and promote the vigorous growth of Ipomoea japonica. However, it is necessary to dig a drainage ditch for Ipomoea japonica during the rainstorm period to drain the accumulated water quickly to avoid poor plant growth.