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Xia Wei Caiqiao Management
In the summer, high temperatures and heavy rainfall lead to reduced nutrient accumulation in amaranth. The plant experiences increased consumption of nutrients and a higher fiber content in its leaf tissues. At this stage, it is typically no longer harvested, and more focus should be placed on strengthening plant cultivation to prepare for a bountiful autumn leek harvest.
One important practice is the removal of flowering buds. These buds consume a significant amount of nutrients during their development, which can hinder plant growth, tillering, and overall nutrient storage. To ensure better yield, it's essential to remove these young flower clusters promptly, allowing the plant to concentrate its energy on growth and development.
Weeding is another critical task during the hot and rainy season. Weeds proliferate rapidly under such conditions, competing with leeks for water and nutrients. Timely weeding helps maintain healthy growth and ensures that the leeks receive adequate resources.
Disease management is also crucial. Amaranth is particularly vulnerable to blight during high-temperature periods, especially after heavy rains when the ground becomes excessively warm. This can lead to severe damage, even causing the entire plant to die. To prevent this, proper drainage and flood control measures must be implemented. After heavy rains, irrigation with well water can help lower the soil temperature. Additionally, applying a 50% carbendazim solution diluted at a ratio of 500 times is recommended to effectively prevent disease outbreaks.
Pest control is equally important. In the summer, cockroach infestations become more severe. A common and effective method is to use a 50% phoxim solution diluted at 800 times and apply it by pouring it slowly into the furrows while watering. Alternatively, phoxim granules can be sprinkled during leek harvesting and soil fertilization to manage pests effectively.
By implementing these practices—careful cutting, timely weeding, disease prevention, and pest control—farmers can significantly improve the health and productivity of their crops. With proper care, the plants will be better prepared for the next growing season, ensuring long-term success and higher yields.
Wang Deming, Vegetable Bureau, Xiajin County, Shandong Province