How to fertilize Schisandra chinensis? Master the key points of scientific fertilization techniques
Schisandra chinensis is a premium Chinese medicinal herb, divided into southern Schisandra and northern Schisandra. Schisandra chinensis is suitable for growing in fertile, well-drained, slightly acidic soil rich in humus. At present, it is mainly produced in Heilongjiang, Jilin, Hebei and other places in China. So to improve the yield and quality of Schisandra chinensis, scientific fertilization is the key. Let's learn the fertilization methods for Schisandra chinensis together below.
1. Base fertilizer
Schisandra chinensis has a relatively large demand for nutrients and continuously absorbs nutrients, so we need to apply sufficient base fertilizer when preparing the land. The base fertilizer is mainly organic fertilizer, used in combination with chemical fertilizers such as nitrogen fertilizer, phosphorus fertilizer and potassium fertilizer. At the same time, an appropriate amount of trace elements also needs to be supplemented in the soil to improve the soil structure and bring the soil to the state most suitable for planting Schisandra chinensis.
2. Growth fertilizer
The growth fertilizer should be applied in multiple sessions, not all at once. The growth fertilizer should not be too heavy, otherwise it will seriously affect the growth of the Schisandra chinensis plants. The first topdressing of growth fertilizer is about ten days after the Schisandra chinensis is planted. This topdressing amount should not be too large, usually controlled at about one jin, mainly nitrogen fertilizer and potassium fertilizer. The second topdressing is one month later, at which time the fertilizer requirement is 75 jin per mu, mainly phosphorus fertilizer, used in combination with urea and potassium fertilizer. The third fertilization amount should be increased, with a fertilization amount of 5,000 jin per mu, mainly well-rotted farmyard manure. Later, we also need to carry out reasonable topdressing according to the growth condition of the Schisandra chinensis plants.
3. Flower-promoting and fruit-strengthening fertilizer
Generally, Schisandra chinensis begins to enter the flowering period in May each year, and at this time we need to fertilize in advance to promote flowering and extend the flowering period, so as to achieve the purpose of increasing the fruit-setting rate. At this time we mainly use foliar fertilizer for spraying, that is, boron fertilizer. Next is between June and August; this period is the fruit enlargement stage, and we mainly use potassium fertilizer and phosphorus fertilizer, and also need to use it in combination with foliar fertilizer, so as to improve the quality of Schisandra chinensis.
4. Periodic fertilizer
The periodic fertilizer is actually a fertilization carried out after the Schisandra chinensis is harvested. The periodic fertilizer is also called winter fertilizer, overwintering fertilizer, maintenance fertilizer, base fertilizer, etc. Topdressing the periodic fertilizer is mainly to prepare for the yield and quality of the coming year, and to help Schisandra chinensis overwinter safely. The periodic fertilizer is mainly organic fertilizer, and an appropriate amount of foliar fertilizer is sprayed to supplement root nutrition, or biological bacterial fertilizer is used; this can not only reduce planting costs, but also improve the quality of Schisandra chinensis.
The above are the basic fertilization techniques for Schisandra chinensis. Generally, mastering these fertilization techniques has a good effect on both the yield and quality of Schisandra chinensis. That's all for today's sharing. I hope it can be helpful to everyone.