Watermelon seedlings are often affected by two major physiological diseases: rotten roots and burned roots, both of which can significantly impact the growth and development of the plants. To minimize these issues, it is essential for farmers to understand the causes and implement proper preventive measures.
Rotten roots typically manifest with symptoms such as a change in root color from white to reddish-brown, the absence of new root growth, stunted plant development, and wilting seedlings. This condition is commonly triggered by low temperatures and high humidity in the soil, especially during rainy periods. Additionally, continuous cropping in the same area can increase the risk of root rot. To prevent this, it's recommended to use electric or bio-heated seedbeds in early spring to maintain optimal conditions. Watering should be carefully controlled, especially on rainy days, and it's best to avoid watering on light rain. Applying wood ash can help raise soil temperature and reduce humidity. Once new roots appear, a mixture of 802 at 4,000 times dilution and 100 times urea can be used to promote healthy root development.
Burned roots, on the other hand, show different symptoms, such as yellowing roots without rot, slow above-ground growth, short and brittle stems, and older-looking seedlings. This issue is usually caused by over-fertilization and dry soil, as well as uneven mixing of the bed soil. To prevent burning, it's important to apply fertilizers carefully and avoid excessive amounts. Organic fertilizer should be fully decomposed before use and thoroughly mixed with chemical fertilizers and the bed soil. The seedbed should be watered regularly to keep the soil moist and prevent root damage due to drought. For seedlings already showing signs of burned roots, increasing watering frequency while avoiding overwatering is key. Raising the temperature of the seedbed can also help stimulate root growth. A diluted solution of 802 (4,000 times) can be applied to aid in root recovery.
By understanding the causes and implementing these strategies, farmers can significantly improve the health and survival rate of their watermelon seedlings.
API (Active Pharmaceutical Ingredients)
API is prepared by chemical synthesis, plant extraction or biotechnology, but which can not be taken directly by patients, are generally made into drugs that can be used directly by adding excipients and processing. Currently, China and India are the two major producers of API.
Bilberry Extract, Cranberry Extract, Black Currant Extract, Black Elderberry Extract,
Raspberry Extract, Acerola Cherry Extract, Aronia Chokeberry Extract, Blueberry
Extract, Blackberry Extract, Acai Berry Extract, Lingonberry Extract, Mulberry Extract are our most popular items.
They can be made into capsule, tablet, granule, etc., deeply favored by the pharmaceutical industry and patients.
Xi'an Longze Biotechnology Co., Ltd. , https://www.bestbilberry.com