Latest Key Points of Cultivation and Management Techniques for Gromwell
Gromwell is a herbaceous plant of the Boraginaceae family, with plants about 1 m tall. It is a very common wild herb and also a Chinese medicinal material we often use. Gromwell has effects such as cooling blood and activating blood circulation, clearing heat and detoxifying, and is mainly used to treat diseases such as vaginitis and hepatitis. Its control effect is relatively obvious. Now gromwell also has a certain cultivation area, so how should it be managed when cultivating gromwell? Below, the editor brings you the key points of gromwell cultivation and management. Let's take a look!
1. Intertillage and weeding
Whether using seedling transplanting or direct seeding, when the seedlings grow to about 5 cm, intertillage and weeding should be done well to improve soil permeability and prevent soil compaction. Avoid too many weeds competing for the growth nutrients of gromwell seedlings, and ensure there are no weeds in the field. However, when intertilling, do not go too deep, to prevent damaging the seedling roots and affecting nutrient absorption by gromwell. Usually, the number of weeding and intertillage operations per year should not be less than 3 times. Then in winter, earthing up should be done well to prevent lodging and improve the cold resistance of gromwell.
2. Thinning and final thinning
Thinning and final thinning work is very important for the growth of gromwell, ensuring that each seedling has sufficient growth space and promoting robust seedling growth. During the first intertillage, it needs to be combined with thinning. Control the plant spacing at about 5-6 cm, following the principle of keeping the strong and removing the weak. Then when the seedlings grow to about 16 m, carry out final thinning in time, and the plant spacing should not be less than 8 cm.
3. Water management
Gromwell has a relatively large demand for water, and during its planting process, water has a great impact on the growth of gromwell. In dry seasons such as spring and summer, water in time to promote water absorption by seedlings and prevent seedlings from wilting due to lack of water. However, the demand of gromwell will gradually decrease as its growth age increases. After maturity, watering can be reduced or even stopped, and in rainy days, drainage work should be done well to prevent waterlogging damage to gromwell.
4. Proper topdressing
Nutrition is also an indispensable substance for the growth of gromwell, and topdressing should be done in time after each intertillage and weeding. According to the different growth stages of gromwell, control the amount and nutrient ratio well. For example, during the seedling stage, the fertilizer should be mainly nitrogen fertilizer, and mainly phosphorus and potassium fertilizer,. When the seedlings grow to about 32 cm, apply decomposed farmyard manure, based on 2000 kg/mu, and appropriately increase the topdressing amount as the growth years increase.
5. Timely bud removal
Because the flowers of gromwell do not have much utilization value, and they also consume excessive nutrients. Therefore, during the budding stage of gromwell, we should pay attention to removing the flower buds in time to prevent excessive nutrient consumption, concentrate nutrients in the roots of gromwell, promote root growth, and improve root quality and yield. This is especially true for mature plants. The nutrient demand of mature plants becomes greater, and flowering requires even more influence, so bud removal work is very important.
The above is a brief introduction to the key points of gromwell cultivation and management. The cultivation of gromwell is actually relatively simple, but management work is still very important. Therefore, everyone must pay attention to doing some basic work well to ensure the healthy growth of gromwell. That is all for today's introduction. This article is for reference only, and I hope it can help everyone!