High-yield fertilization techniques of Radix Isatidis

Radix Isatidis is a well-known medicinal plant, it has heat-clearing and detoxification, cooling blood and pharynx, as well as antibacterial, anti-virus, improve immune function, we often use it to prevent colds. But in the planting of Radix Isatidis, fertilization is the key to obtain high yield. Let's take a look at the high-yield fertilization technology of Radix Isatidis together with the editor.

1. Apply sufficient base fertilizer

Before planting or during soil preparation, a large number of slow-acting or late-acting fertilizers can be applied to the soil as base fertilizer, which is mainly organic fertilizer or farm fertilizer, and will be ploughed and buried in the soil with some appropriate amount of nitrogen, phosphorus and potassium fertilizer. When planting, farm manure is generally used as base fertilizer, 3000-4000 kg of rotten farm manure, 15 kg of diammonium phosphate and 4 kg of biological potash fertilizer are applied per mu, which are evenly scattered on the soil and buried in the deep soil.

2. Dip in seed fertilizer

As the name implies, seed fertilizer is applied during sowing or seedling planting, mainly to improve the nutrients needed for seed germination or seedling growth. Among them, the seed can be mixed with fertilizer, the seed can be diluted and soaked in dissolved water, or the fertilizer can be applied into the hole when sowing. Fertilizers generally choose trace elements and organic fertilizers or granular fertilizers, but not urea, ammonium bicarbonate and other fertilizers. These fertilizers are easy to burn seeds and lead to budding failure.

3. Topdressing in time

Topdressing is a kind of fertilizer applied during the growth and development of the plant. When the plant grows vigorously, it needs more nutrients. If the nutrient is insufficient, it will affect its growth. Therefore, it is necessary to topdressing in time, which is generally based on quick-acting fertilizer, in order to quickly supply nutrients and prevent nutrient loss. There are many methods of topdressing, such as spreading, strip application, watering and foliar spraying. Topdressing is the most suitable combination of organic fertilizer and chemical fertilizer. 40-60 kg of organic fertilizer and 10-20 kg of compound fertilizer are applied per mu, and then compacted with soil. after topdressing, try to choose watering before the rainy season or immediately after fertilization.

4. Overwintering fertilizer

If it is Radix Isatidis sown in autumn, it is necessary to apply overwintering fertilizer before overwintering to avoid freezing damage to the plant, make it safe to survive the winter and promote healthy growth in the second year. Overwintering fertilizer should be applied before freezing, generally choose barnyard manure, spread the fertilizer directly around the plant roots, can play the role of heat preservation, after thawing in the spring of the following year, the fertilizer can be broken and paved.

The above is the introduction of high-yield fertilization technology of Banlangen. I hope it can help you. If you want to know more about it, please pay attention to us.