The cow's knee is a kind of more commonly used species of medicine, also known as wai cow's knee, cow condylar knee, mountain amaranth, etc., in recent years, the demand for cow's knee is more and more, and many areas of the wild resources have been exploited almost, so ushered in the era of artificial planting, so how to plant the cow's knee? The following is my introduction to the planting method and planting notes for you, I hope to help you.

How to plant hyssop

1, plowing seedlings: hyssop general 7 ~ 10 days after sowing can be seedlings, seedlings 2 ~ 3 cm high with a hand scraper hoe plowing loosening, at the same time, vegetables and seedlings weeding, seedling height of 3 ~ 4 cm according to the spacing of 3 cm to stay in the seedling, seedling height of 6 cm according to the spacing of 9 cm to set the seedling.

2, reasonable watering: hyssop seedlings are afraid of stagnant water, seedlings out of the flush can no longer water, from the seedling to mid-August period as little or no watering in order to facilitate the root of the downward growth, watering after late August to increase the amount of watering in order to promote the growth of the main root thickening.

3, hit the top to promote the root: hyssop sowing 1 month after the plant appeared bowel shoots necessary to remove, generally remove the buds 3 to 4 times, the seedling height of 40 to 50 centimeters when the terminal inflorescences timely cut, remove the top of the shower yield, quality improvement.

4, timely fertilization: cow's knee during the growth of fertilizer 1 to 2 times, mainly phosphate and potash fertilizer, generally not fertilizer in the early stage, when the plant grows 25 cm high mu fertilizer monoammonium phosphate 4 to 5 kg, urea 10 kg, phosphate fertilizer dihydrogen 2 to 3 kg.

5, timely harvesting: hyssop is generally on the ground before and after the frost look forward to the leaves withered when the harvest, too early the root is not full, the yield is low, too late the root is easy to lignify or frozen, affecting the quality of the general production of dry goods per hectare of 3000 ~ 3750 kg or so.

What are the precautions for the planting of hyssop

1, time

hyssop planting time and the region concerned, because hyssop prefers a warm and humid climate, so the general planting is between the more will choose to sow in the summer, the capital city of China, etc., generally is the most suitable for sowing in the May and June, and in Henan, Wuhan and other areas is best to sow. Henan, Wuhan and other areas are best planted in July, when the plague high temperature and rainy season, just suitable for the growth of hyssop, during which the planting of the temperature is best regulated between twenty degrees to two or fourteen eight degrees, the temperature can not be a minimum of ten degrees, ten degrees below hyssop will stop is growing.

2, the density

The knee belongs to the tuber into the medicine, at the same time its branches and leaves can also be used in medicine, so in order to ensure that it can grow normally, can absorb enough nutrients as well as enough sunlight, so planting time must pay attention to and in the density, can not be too big or too small, so we generally follow the spacing between plants and plants is fifteen centimeters, the distance between lines is twenty centimeters.

3, fertilizer

Fertilizer management is a more important part of the hyssop planting species, the base fertilizer we generally use farmyard manure as well as livestock manure dosage is generally controlled between three and four kilograms. In the growth process requires two water, three fertilizer, three weed control, the first watering is after sowing, the second watering to wait until the knees began to grow tubers, the first fertilizer is in the sprouts to grow to five centimeters or so, the general use of urea, phosphorus fertilizer watering, an average of fifty kilograms per acre, the second fertilization is in the first fertilization a month later, this time mainly to raise seedlings, and to ensure that the knees of the tubers successfully Into the expansion period. The third time is the tuber rapid growth period, an average of 50 kg of potash per acre, boron fertilizer 30 kg, and then you can also spray some herbs special strong root fertilizer, weeding and fertilization is synchronized Oh.

4, pests and diseases

The serious impact on the yield of hyssop is the leaf spot disease and root rot, the symptoms of leaf spot disease appear as black river color spots on the leaf surface, and in severe cases, it will lead to the whole plant withered. Effective control methods are spraying 1: 1: 120 Bordeaux solution or 65% Dysonium 500 times, every ten days or so, two times in a row can be sprayed. Root rot, on the other hand, causes rotting of the headquarters, resulting in the death of the plant, and can usually be sprayed with carbendazim. The most important insect pests are silver moth and red spider, we can take the way of artificial killing, or use pharmaceutical spraying, the most effective agent is to use 90% trichlorfon 1000 to 1500 times liquid spraying, or add 40% Rogaine 2000 times liquid spraying.