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What precautions should be taken when applying herbicides to corn seedlings?
What should be noted when applying herbicides to corn seedlings? Here is an introduction to chemical weed control technology in corn fields, which saves labor, saves effort, requires low input, and delivers high benefits. In recent years, the area where post-emergence herbicides for corn are applied in China's corn-producing regions has been expanding year by year. Because some applicators lack adequate application skills, some fields have experienced herbicide damage of varying degrees and...
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What are the precautions for applying potassium fertilizer?
What should be noted when applying potassium fertilizer? What does potassium fertilizer do? Please note the following when applying potassium fertilizer: 1. Pay attention to soil conditions. Generally, when soil available potassium is below 80mg/kg, the effect of applying potassium fertilizer is obvious; when soil available potassium is 80-120mg/kg, apply less or none. In addition, sandy soil available...
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What precautions should be taken when applying potassium sulfate?
What should be noted when applying potassium sulfate? Please give guidance. Potassium sulfate is a high-quality potassium fertilizer with a relatively high potassium content. Potassium sulfate is a white crystalline substance, with a K2O content generally between 50% and 52%. It is easily soluble in water, has low hygroscopicity, and does not easily cake, giving it better physical properties than potassium chloride. Potassium sulfate is widely suitable for various...
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What happens after applying high-concentration phosphate fertilizer?
What happens when high-concentration phosphate fertilizer is applied? Please explain that the main component of ordinary superphosphate is monocalcium phosphate, and the fertilizer contains 14%-18% phosphorus; the secondary component is calcium sulfate, accounting for about 50%. Therefore, applying ordinary superphosphate not only provides crops with phosphorus nutrition, but also allows crops to obtain sulfur nutrition. However, superphosphate...
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What are the precautions for applying diammonium phosphate?
What should be noted when applying diammonium phosphate? Please explain that the following three points should be noted when applying diammonium phosphate: 1. Diammonium phosphate must not be mixed with alkaline fertilizers, otherwise it will cause nitrogen volatilization and also reduce the fertilizer efficiency of phosphorus. 2. For crops that have already been applied with diammonium phosphate, during the middle and late stages of growth, generally only an appropriate amount of nitrogen fertilizer should be supplemented, and no additional phosphorus fertilizer is needed.
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Correct methods for applying flushing fertilizer to greenhouse vegetables
How should greenhouse vegetables be given flushing fertilizer? Please advise. In greenhouse vegetable production, many farmers apply flushing fertilizer too frequently and in excessive amounts, often causing soil compaction, root rot, root suffocation, and plant wilting, which seriously affects farmers' economic returns. For this reason, it is recommended that in greenhouse vegetable production, fertilization should achieve the "four combinations."...
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What are the correct methods for applying water-soluble fertilizer by flushing?
How is flush-applied fertilizer used? How can it be applied for better results? Please give guidance. The following methods can be used for reference when applying flush fertilizer: combine topdressing with flush fertilization. Choose high-quality fertilizers, mainly multi-element compound fertilizers, and adopt a combination of topdressing and flush application. On the one hand, this solves the nutrient needs of surface roots; on the other hand...
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What are the methods of applying organic fertilizer to fruit trees?
How should organic fertilizer be applied to fruit trees? Please give guidance. Fruit trees need a balanced supply of nutrients. Although organic fertilizer is very rich in nutrients, the ratio and content of nitrogen, phosphorus and potassium cannot fully meet the growth needs of fruit trees. Especially during the piling and decomposition process of organic fertilizer, the nitrogen content will further decrease. If applied alone...
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Proper methods for applying foliar fertilizer in grape cultivation
How should foliar fertilizer be applied in grape cultivation? Please introduce the methods. The main advantages of foliar fertilization are: rapid fertilizer effect, remarkable results, labor and fertilizer savings, and it is not affected by soil fixation or root absorption function. The disadvantages are: it is greatly affected by wind, air humidity, and temperature. Foliar fertilization can not only promptly treat fruit trees'...
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What should be noted when applying urea as a foliar fertilizer?
What should be noted when applying urea as a foliar fertilizer? Please explain. When applying urea as a foliar fertilizer, note the following: do not spray in extremely hot weather or before rain, to avoid burning the seedlings or losing fertilizer nutrients. The best time to spray is in the early morning or afternoon each day, and spray again 7~10 days after the first application. For cereal crops...
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