Jiang Hai made a letter on January 17: What happened to the watermelon seedlings? Roots were normal, and the roots of the stems near the ground were yellow after a period of time.
Wang Feng: The picture is not clear. Photographed the fallen seedlings after coke, focusing on the yellow part of the stem base. From the picture, the watermelon seedlings are mainly the yellow of the cotyledons, plus the yellow base of the stems that you have mentioned. If you have a long time, you will fall to lodging. The initial diagnosis may lead to damping-off. In the early stages of the onset of watermelon damping-off, yellow to brown water-stained contracture lesions were generated on the stem base near the seedlings, and the cotyledon did not wither and the seedlings had fallen. Some of the diseased plants have the same appearance as healthy plants, but they do not stand upright on the surface of the soil. Carefully look at the base of the seedlings, and the stem base shrinks. Pay attention to the symptomatic medication after carefully checking the diseased strain.
Watermelon seedling damping-off occurs when heavier, should be treated with medication. It can be used to prevent and control watermelon rhizome and stalk. It can be used for prevention and treatment of manganese rhenium, enrofloxacin, propamocarb, hydrochloride, azoxystrobin, oxazolyl synthetase, enoylpyrazole ester, etc. Base rot. Spray the stem base and around the ground, alternating spray, once every 6 to 7 days, continuous control 2 to 3 times. After the application, if the bed soil is too moist, it is inconvenient to ventilate and dehumidify, and it is possible to wet the fine soil on the bed surface to prevent the humidity from becoming too serious for the ambassadors.
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The term "food additive" refers to a chemical synthetic or natural substance added to food for the purpose of improving the quality, color, fragrance and taste of food, as well as for the needs of preservation and processing technology. Due to the rapid development of the food industry, food additives have become an important part of the modern food industry, and have become an important driving force for technological progress and technological innovation in the food industry. In the use of food additives, the most important thing is to ensure the safety and health of food, in addition to ensuring their proper functions and functions.
The following are the main recommended raw materials for food additives.
Food Additives
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