What are the precautions for planting Oldenlandia diffusa
Oldenlandia diffusa (Hedyotis diffusa) is an annual sprawling herbaceous plant and is currently a very important Chinese medicinal herb for tumor prevention. Clinically, it can be used to treat a variety of diseases, such as lung-heat asthma and cough, intestinal abscess, venomous snake bites, enteritis, appendicitis and other symptoms. Secondly, it can also enhance the human body's immunity, play a role in inhibiting tumors, and has an excellent curative effect on leukemia. So what issues should we pay attention to when planting Oldenlandia diffusa? Let's take a look at the precautions below.
1. Soil
At present, Oldenlandia diffusa in China is mainly distributed in Fujian, Guangdong, Guangxi, Hainan and other regions with a relatively mild climate throughout the year, which also shows that its requirements for the growing environment must be regions with a mild climate all year round. The planting site should have relatively low terrain, sufficient sunlight, convenient drainage and irrigation, sufficient soil fertility, and soil containing organic matter and rich in humus is more suitable for planting Oldenlandia diffusa.
2. Time
The planting time of Oldenlandia diffusa is also an aspect worth our attention. Generally speaking, it can be planted in two seasons, namely spring and autumn. When planted in different seasons, its emergence rate and yield vary. The best planting time is from the end of March to the beginning of May each year, followed by the period from mid-August to late August. If we want to plant Oldenlandia diffusa, it is best to complete sowing during these two time periods.
3. Water
Oldenlandia diffusa has relatively strict requirements for water, and its water demand during growth is also relatively large. After sowing, in order to promote seed emergence, we usually water once in the morning and once in the evening every day, but note that there must be no waterlogging. After Oldenlandia diffusa emerges, we need to keep the soil moist, so appropriate watering is needed. During the rainy season, drainage must be carried out in time to avoid waterlogging or ponding. This means that during the growth of Oldenlandia diffusa, attention must be paid to both drought prevention and waterlogging prevention.
4. Nutrients
Oldenlandia diffusa has a relatively short growth cycle, so base fertilizer is the key to its growth. The base fertilizer is generally mainly farmyard manure, which can promote plant growth. When the seedlings grow to about 8 to 10 cm, we can appropriately apply 1 jin of manure and urine water as a top dressing. In the middle stage of Oldenlandia diffusa growth, we only need to apply top dressing according to its growth condition. Another thing to note is that if you want to harvest twice, we only need to continue fertilizing after harvesting, which can promote the regrowth of Oldenlandia diffusa.
5. Pests and diseases
Oldenlandia diffusa has strong resistance, so there are almost few pests and diseases throughout its growth process, but this does not mean there is no harm from pests and diseases. What we should pay attention to is the impact of pests such as cutworms and cotton leafworms on it. For cutworms, we can use trichlorfon mixed with fried bean cake or wheat bran for trapping and killing. For cotton leafworms, we can use insect trap lamps for trapping and killing, or use 5% fipronil suspension concentrate 40ml/667m2 or BT preparation 200~250g/667m2 for poisoning and killing.
Under normal planting conditions, the yield of processed Oldenlandia diffusa after harvest is about 600 to 1,000 jin per mu, so its yield is also very considerable. If everyone is interested in planting it, you can follow us to obtain more detailed interpretations of planting techniques.