A Detailed Explanation of Patchouli Planting Techniques and Management Key Points
Agastache rugosa is a plant suitable for both medicine and food; its whole herb can be used as medicine, and patchouli (Pogostemon cablin) is the authentic variety among agastache plants and one of the ten major Guangdong medicines. It has a long cultivation history, mature cultivation techniques, simple planting management, and broad market prospects. So how should it be planted? Let's take a look together.
1. Site Selection and Land Preparation
Patchouli is suitable for growing in warm, well-drained sandy loam soil, especially brown soil or black sandy loam rich in humus, with a soil pH of 4.5-5.5 being optimal. Patchouli leaves are often rotated with other crops; it is not tolerant of strong sunlight and frost, so it is mostly rotated with rice. After the rice harvest, plow the plot and make beds 60-80 cm wide and 30-40 cm high.
2. Propagation Methods
Patchouli rarely flowers, so cuttings are mostly chosen for propagation when planting. Seedlings should be selected from robust plants with lush branches and leaves and no pests or diseases. Cut a branch of about 40 cm, preferably one whose pith is white, and plant it as soon as it is cut, digging holes for planting with a hole spacing of about 20-25 cm. Insert the cut cuttings into the holes to a depth of about half the length of the seedling, then cover with soil and press firm. After cutting, before the branches have taken root, avoid exposure to strong sunlight, so cover with grass and water frequently.
3. Field Management
Rooting occurs after more than 20 days of planting, at which point fertilization can begin. For the first fertilization, diluted manure and urine can be applied. After that, fertilize once every half month for 2-3 consecutive times. For the second fertilization, use 350-400 kg of human manure and urine per mu. For the third, in addition to 350-400 kg of human manure and urine, also apply an additional 3.5-4 kg of ammonium sulfate, diluted with water before application.
4. Pests and Diseases
The main diseases of patchouli include angular leaf spot, root rot, and brown spot. Among these, angular leaf spot and brown spot mainly harm the leaves, and both can be prevented and controlled by spraying Bordeaux mixture. Root rot mainly harms the root system and stem; when it occurs, there are no obvious symptoms on the aboveground parts. Prevention is the main approach: diseased plants should be pulled out promptly, and the diseased holes disinfected with lime powder. The main pests are aphids and leaf roller borers, which can be controlled by combining manual capture with chemical agents.
The above is an introduction to patchouli planting techniques. We hope it helps you. To learn more about planting knowledge, please follow us.