Gold-iron lock planting technique

Gold iron lock is a rare plant endemic to China. It grows in gravel slopes or calcareous rock fissures along the Jinsha River and Brahmaputra River at an altitude of 2000-3800 meters. The root of gold iron lock is used as medicine to treat injuries caused by falls and stomachaches. Poisonous, internal administration should be careful. So what is the planting technology of gold iron lock?

I. Seedling and transplanting

When planting on slopes with difficult water sources, in order to facilitate management, first concentrate on raising seedlings, and then transplant them according to soil moisture in the rainy season. The most suitable temperature for gold iron lock seed germination is 20-25 ℃, and the humidity is 50%. In order to make full use of the growing season, seedlings should be raised in a small shed and sowed in advance. Use seed about 1.5kg per mu, sow about 1200 seeds per square meter, then cover the mixed soil, cover loose hair, then water thoroughly, and keep the seedbed moist. According to the size of the seedlings, they can be transplanted in the rainy season (July-August), or they can be transplanted after the aboveground parts withered in late autumn or before sprouting in spring. It is best to take seedlings and transplant on the same day, no more than 48 hours, and the row spacing of the transplanted plant is 10 cm × 20 cm. When transplanting, the root system must be fully stretched and can not be bent, otherwise it will affect the growth of the main root. Immediately after transplanting, pour through the fixed root water and cover with a layer of loose hair.

II. Fertilization

Jintiesuo fertilization should follow the following five principles: first, "controlling nitrogen, applying phosphorus, increasing potassium and supplementing microelements"; second, mainly organic fertilizer, with the combination of inorganic fertilizer; third, the combination of base fertilizer, base fertilizer and appropriate amount of topdressing; fourth, reasonable proportion of nitrogen, phosphorus and potassium, highlight phosphorus and potassium fertilizer; fifth, foliar spraying of trace element fertilizer.

Gold iron lock fertilization is mainly organic fertilizer, combined with phosphorus and potassium fertilizer application, per mu application of rotten organic fertilizer 3000-4000 kg, 16% through calcium phosphate 20-30 kg, 50% potassium sulfate 25-30 kg and appropriate amount of micro-fertilizer.

III. Management

Irrigation and drainage: spray water every day after sowing to keep the soil moist. Watering at seedling stage is based on the principle of not being subjected to drought, and the watering times should be controlled flexibly. The gold iron lock is drought-resistant and not resistant to waterlogging, as long as the seedlings and transplants survive without irrigation or watering, and the soil moisture is about 30%; pay attention to strengthen drainage in the rainy season, otherwise it is easy to rot the roots.

Weeding: pull up the grass when you see the grass in the seedling stage, eliminate the weeds in the young stage, avoid competition for production factors and affect growth and development. Weeds that cannot be killed by professional herbicides should be pulled out in time when weeds are used in seedling and field stages.

Topdressing: remove weeds after pouring seedlings in winter, and cover the border with a layer of rotten and finely broken organic fertilizer, which can not only play the role of fertilization, but also heat preservation and moisture, which is conducive to the safe overwintering of plants.

IV. Pest control

In general, diseases and insect pests and root rot are not easy to occur. However, leaf spot and root rot are easy to occur in rainy season, high temperature and humid environment. Withered branches, fallen leaves, root rot and diseased plants should be removed immediately, and soil should be loosened to drain water. At the same time, Bordeaux solution or Dyson zinc solution was sprayed at the initial stage of leaf spot disease, and 1% ferrous sulfate was used to control the root rot plant.

Gold iron lock is relatively rare, the growth conditions of planting are more stringent, if there are no conditions and technology, planting is not recommended.