Improper use of auxin, often resulting in small fruit, cracked fruit, green top and other phenomena, it is recommended that tomato control should be based on nutritional regulation. The following is an introduction to the phenomena and correct practices discovered by the author.
1. Small fruit disease: Because the farmers use the large dose of auxin in the tomato seedling stage and the time is late, although the plant height is controlled, the ear development is also inhibited. At this stage, the “rooting and seedling method†should be adopted. The specific method is: use 500-800 times Gaomei applied organic humic acid active liquid fertilizer to irrigate the roots, each strain 100-150 grams of liquid medicine, and spray the plant growth agent plus green Heng No.1 to make the organic nutrients produced by the leaves to the root system Conduct, promote root development and improve disease resistance
2. Cracking disease: Using the help of chemical control, the skin can be thickened, so that the flesh rapidly expands to form "split fruit disease". At this stage, boron should be added to reduce calcium, especially in the tomato flowering period, spraying 300-500 times of humic acid boron calcium or 300-500 times of high-magic application, and applying potassium fertilizer with small fertilizer water.
3. Green top disease: Because some farmers have increased the management of fertilizer and water, the humidity is too large, so that the fruit develops too fast, and the use of hormone spraying is uneven, it is inevitable that the various parts of the fruit will be unevenly developed, resulting in "green top disease." At this stage, the root cooling method should be adopted. Specifically, when the second and third panicles are grown in tomato, the bio-organic fertilizer and potassium sulfate compound fertilizer are ditched (or applied) to promote the growth of secondary roots, and the ability of water absorption and absorption is cultivated, which lays a good foundation for the late growth stage.
Huaxian County Agricultural Products Inspection and Testing Center Chang Bili
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