How to grow sand ginseng well? Detailed explanation of planting methods and technical key points
Sand ginseng is a very commonly used medicinal herb, but wild sand ginseng is now basically rarely seen, and most of what is on the market is sand ginseng that has been artificially cultivated, yet the current yield of sand ginseng is not particularly satisfactory. Sand ginseng can be used as medicine, and can also be used to make tea and prepare medicinal meals; its medicinal effects are all very good, and it is very simple to use. Regular consumption can improve the body's immunity and can also nourish the spleen and stomach, so how should sand ginseng be grown for the best results? Then let Qinnong Network tell everyone.
1. Select superior seeds
There are not many varieties of sand ginseng, but there is one relatively big difference, namely southern sand ginseng and northern sand ginseng. Although their medicinal effects differ greatly, the planting methods are largely the same. So the first thing to do when planting sand ginseng is to select seeds. High-quality seeds fundamentally determine the quality and yield of sand ginseng. We generally choose seeds with relatively plump grains that have not been damaged by pests or diseases, as this can improve the germination rate of sand ginseng and the survival rate of sand ginseng.
2. Land selection and land preparation
Although sand ginseng likes light, it is not tolerant of high temperatures, so we should choose a plot where sunlight does not shine directly. At the same time, the soil humidity should not be too high, as diseases are also very likely to occur. We generally choose to plant in loose sandy soil or loess soil. Next, the soil drainage system must be good. Finally, it must not be planted in soil that has been continuously cropped. When preparing the land, it must be deeply plowed, as this can clear away pathogens and pests in the deeper soil layers and reduce the amount of labor for later field management. Finally, spread sufficient farmyard manure as well as potassium fertilizer and phosphorus fertilizer as base fertilizer, then level the land.
3. Sow at the right time
There are three sowing times for sand ginseng. The first is around mid-March to early April each spring. The second is around early June to early July each summer. The last is around the end of August to mid-September each year. The temperature and various conditions in these three time periods are relatively consistent with the requirements for sand ginseng growth, and sowing during these periods is beneficial to the survival of sand ginseng.
4. Reasonable density
When sowing, we must pay attention: whether using transplanting or direct seeding for planting, reasonable planting density is a necessary condition for high yield of sand ginseng. For direct seeding, we generally open small furrows in rows in the prepared land, then sow according to a row width of 15 cm and a plant width of 10 cm, and then cover the seeds with soil. The spacing for transplanting is also the same as for direct seeding. About more than 100,000 plants can be planted per mu. Of course, we can also adjust the spacing of the plants according to the fertility of the soil.
5. Scientific management
There are quite a lot of things in terms of management, so let us explain them one by one. After sand ginseng seedlings emerge, we need to thin them and fill in gaps, and finally establish the final stand. After establishing the stand, one watering is needed to ensure the survival rate in the field. Next, about one week after establishing the stand, we need to carry out the first intertillage, weeding, and fertilization, mainly with urea or manure and urine water. At the same time, weeding is done so that nutrients can be fully utilized. Then, when the plants grow to about 25 to 30 cm, we need to water, fertilize, and weed again, and the three must be combined. This time it is mainly suitable to spray potassium fertilizer and irrigate the roots. Also, when the flowering period arrives, one more fertilization is needed, and this fertilization is consistent with the second fertilization.