Celery fertilizer pay attention

Celery is a cool-season vegetable that is not only rich in nutrients but also highly appreciated for its taste and health benefits. Known as the "hypertension and lipid-lowering" vegetable, it has significant medicinal value. Growing high-quality celery requires careful field management, especially when it comes to fertilization and care. First, celery has a high demand for nitrogen. Throughout its growth cycle, it needs regular applications of nitrogen-rich fertilizers. The most commonly used top-dressing is ammonium nitrate, applied in small amounts—usually 2 to 3 times during the growing season. If the soil lacks boron, it's recommended to apply 0.5 to 0.75 kg of borax per acre to prevent petiole cracking, which can reduce the vegetable’s quality. Spraying a 0.2% to 0.4% calcium chloride solution can also help prevent black heart disease, a common issue in celery cultivation. Second, it's important to avoid using urea as a top-dressing. Applying urea can lead to slow growth, increased cellulose content, and premature aging of the plant. This results in a bitter taste and lower quality, making it unsuitable for consumption. Therefore, urea should be completely avoided throughout the entire growth period of celery. Third, applying organic fertilizer can greatly enhance the quality of celery. Using well-composted chicken or duck manure, which has been properly fermented, can improve both the texture and yield of the crop. However, it's crucial not to use raw or undecomposed farmyard manure, as it may cause root burn or rot. After applying organic fertilizer, the plants become more tender, with reduced fiber content, leading to better flavor and higher productivity. Once the celery reaches over 40 centimeters in height, it's ready for harvest and market. In addition to proper fertilization, maintaining consistent moisture, controlling pests, and ensuring good drainage are all essential for successful celery cultivation. With the right care and attention, farmers can produce high-quality celery that meets both nutritional and commercial standards.

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Polylactic acid (PLA) is a novel biodegradable material made from starch derived from renewable plant resources such as corn. Starch raw materials obtained glucose through saccharification, and then fermentation of glucose and certain strains to produce high purity lactic acid, and then through chemical synthesis method to synthesize polylactic acid of a certain molecular weight. It has good biodegradability and can be completely degraded by microorganisms in nature after use, resulting in carbon dioxide and water, which does not pollute the environment. It is very beneficial to environmental protection and is recognized as an environmentally friendly material. Ordinary plastics are still incinerated, causing a large amount of greenhouse gases into the air, while polylactic acid plastics are buried in the soil to degrade, resulting in carbon dioxide directly into the soil organic matter or absorbed by plants, will not be discharged into the air, will not cause the greenhouse effect.

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