There are many methods for applying trace element fertilizers, such as soil fertilization, seed treatment and top dressing.
Soil fertilization is the application of trace element fertilizers to the soil when it is used as a base fertilizer, a seed fertilizer or a top dressing. Although this method of applying fertilizer has a low utilization rate, it has a certain aftereffect. Industrial waste containing trace elements and slow-acting micro-fertilizers often use this method of fertilization.
Seed treatment includes both seed soaking and seed dressing. When soaking seeds, the seeds are immersed in a trace element solution, the seeds absorb the solution and expand, and the fertilizer enters with water. Commonly used concentrations are from 0.01% to 0.1% and the time is from 12 to 24 hours. Seed dressing is to dissolve the trace element fertilizer with a small amount of water, spray the solution on the seed, stir evenly, so that the outside of the seed is stained with the solution and then dry and sowed, generally 2-6 grams of fertilizer per kilogram of seed.
The external top dressing is to spray the trace element fertilizer solution onto the plant with a sprayer, and move into the plant body through the foliar or stomatal absorption. Commonly used solution concentrations are from 0.01% to 0.1%.
This is a special fertilization method for rice. Other crops that need to be transplanted can also be fertilized by rooting.
This article URL: Four methods of application of trace element fertilizer
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