How to manage Rehmannia glutinosa during the seedling stage? These planting techniques must be mastered
How should Rehmannia glutinosa be managed during the seedling stage? What should be noted? Please provide methods. For managing Rehmannia glutinosa during the seedling stage, you can refer to the following methods: 1. Cultivation and weeding: From the end of April to the beginning of May, management should focus mainly on cultivation and weeding. During the period when Rehmannia glutinosa seedlings emerge, weeds in the field must be removed promptly to prevent weeds...
How should Rehmannia glutinosa be managed during the seedling stage? What should be noted? Please provide methods.For managing Rehmannia glutinosa during the seedling stage, you can refer to the following methods:
1. Cultivation and weeding:From the end of April to the beginning of May, management should focus mainly on cultivation and weeding. During the period when Rehmannia glutinosa seedlings emerge, weeds in the field must be removed promptly to prevent weeds from competing for light and nutrients and affecting the normal growth of Rehmannia glutinosa. At this time, the seedlings are small and the roots are shallow, so be careful not to loosen the area around the rhizome and prevent damage to the rhizome.
2. Thinning and final thinning of Rehmannia glutinosa seedlings:
When the seedlings are 3-4 cm tall and have grown 2-3 leaves, thin them promptly. Because the rhizome has more than 2 bud eyes, it can grow multiple seedlings. If thinning is not done in time, nutrient concentration will be affected, which will affect the later development of the rhizome. Leave 1-2 seedlings per hole.
If missing seedlings are found, replanting can be carried out. After replanting, water promptly to help the seedlings survive.
3. Fertilization and irrigation of Rehmannia glutinosa:Rehmannia glutinosa is a densely planted crop, so fertilization must keep up to meet the nutritional needs of the plants. Not only should sufficient base fertilizer be applied, but appropriate topdressing should also be applied. After the seedlings have all emerged, apply compound fertilizer in furrows beside the plants (or after thinning, apply 100 kg of superphosphate and 30 kg of decomposed cake fertilizer per mu to promote rhizome development and expansion; when the rows close, broadcast 1 application of fire soil ash between the rows) to ensure the nutrients needed for Rehmannia glutinosa growth and strengthen the medicinal properties of the roots.
After topdressing, water promptly to meet the water needs of Rehmannia glutinosa growth so that the plants can fully absorb nutrients.
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