For plots with longer cropping periods, soybeans are prone to nutrient imbalances, such as potassium deficiency and phosphorus deficiency. Nitrogen fertilizers are not lacking in the early stage of growth, and they are deficient in mid-to-late crops to reduce production. In addition, trace elements such as zinc, boron and molybdenum deficiency are already present in some plots. The end result of nutrient imbalance is the decline in soybean yield and quality.

Countermeasures: 1, the application of soil testing and formulating fertilizer (internationally known as balanced fertilization) technology can effectively solve the imbalance of soybean nutrients. First, the collection of soil samples (abbreviated as soil samples) should follow the principles of random, equal, and multi-point mixing to ensure that the collected soil samples are representative. Then the soil samples are sent to the laboratory for determination, according to the measurement results and related The parameters were formulated by the Fertilizer Technology Department and the fertiliser formulation was applied by the growers according to the formula to obtain a better yield increase effect.

2, foliar spray fertilizer. The occurrence of trace element deficiency syndrome can be applied to seed dressing or foliar application of trace elements containing elements such as boron, molybdenum, and zinc. It is also possible to use a certain amount of biological inoculum in the base fertilizer (to be mixed). , To improve the utilization of nutrients in the soil, especially trace elements. The above two methods can be used together.

3, increase nitrogen fertilizer. The amount of nitrogen fertilizer can be increased in the soybean base fertilizer, and a certain percentage of nitrogen long-term synergist (nitrogen preservation) can be added at the same time so that the nitrogen fertilizer is slowly released in the soil, and the nitrogen fertilizer effect period is extended from the original 40-60 days to 90-120 days At the same time nitrogen can increase the utilization of phosphorus and potassium, so that soybean growth in the early stage (but not crazy growth), do not de-fertilize in the middle and late, there is stamina, falling significantly reduced flowering, full grain, yield increased significantly .

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The main material of salicylic acne patch is hydrocolloid, which is composed of hydroxymethyl cellulose, medical hot melt adhesive. patch acne is used to apply to the surface of acne, absorbing tissue secretions in a physical way and creating a moisture-balanced environment around the acne. Korean acne patches has a flat back and neat edges, with no defects of decoupling. Acne scar patch can absorb more than twice of its own tissue fluid. Acne cover patch is disposable. Keep skin clean before acne pimple master patch use, do not apply any products, do not use with ointment. Acne patch microneedle is most effectively absorbed when the acne appears pus-filled. To use acne pimple healing patch, remove the sticker, peel off the backing paper, apply it to the wound and gently press around it to fix it. Acne spot patches is most effectively absorbed when the acne appears pus-filled. To use acne removal patch, remove the sticker, peel off the backing paper, apply it to the wound and gently press around it to fix it. After the color of the custom acne patch changes from clear to white, replace the sticker. Salicylic acne patch has good water resistance and can be used during makeup or bathing.

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