Soybean absorption characteristics and application techniques of zinc fertilizer

1.1 absorption characteristics

Soybeans are crops that are sensitive to zinc. Zinc deficiency in soil mainly occurs in calcareous soils such as saline-alkali soil, chernozem, and pale black earth. The application of zinc on zinc-deficient soil can significantly increase the yield. Generally, the yield increase can reach about 10%. The stimulation effect of applying zinc fertilizer is closely related to the application rate of phosphate fertilizer. When the phosphorus level is low, the high zinc content is likely to cause zinc damage, resulting in reduced production. When the phosphorus level is high, the zinc damage can be suppressed to a certain extent, but the zinc application is not as high as zinc. Zinc fertilizer can be combined with nitrogen and phosphorus to obtain the maximum yield increase effect. From the relationship between the application mode and the increase of yield, the yield increase of the base application is slightly higher than that of the start-up period. The yield increase rate at the initial flowering stage is slightly higher than that of the flowering stage.

1.2 Application Technology

When the soil effective zinc content is less than 0.5mg/kg, soybeans show symptoms of zinc deficiency, and the application of zinc fertilizer has an effect on soybean yield.

1.2.1 åŸºæ–½

15-30kg of zinc sulphate per heal, mix dry fine soil 150-200kg, mix thoroughly and sprinkle with the surface, then plow it into the soil, or mix it with other base fertilizers into the old ditch.

1.2.2 Topdressing

In the soybean seedling stage, branching stage, and flowering stage, 15-30 kg of zinc sulfate is used per ha, and 150-200 kg of fine soil is mixed, and the cultivation is carried out.

1.2.3 Soaking Seeds

The zinc sulfate is formulated into a 0.05-0.1% solution, and the soybean seeds are poured into the solution, and the solution is submerged for the seed, and the soaking time is 6-8 h.

1.2.4 Seed dressing

2 kg of zinc sulfate per 1 kg of soybean seeds, dissolved with a little water, sprayed with a spray of zinc sulphate solution on the soybean seeds, stirred while spraying, and placed in a cool dry place after mixing.

1.2.5 Foliage Spraying

0.2-0.3% zinc sulfate solution is sprayed at the initial stage of soybean flowering and at the initial stage of pod formation, and about 500 kg of liquid is applied per ha.

Total 1 | <First <Prev 1 Next> Last> |

share to:

Fiberglass Woven Roving

Fiberglass woven roving is a versatile composite reinforcement material composed of continuous glass fiber filaments coated with a coupling agent or binder. The glass fibers are woven into a fabric with a plain or twill weave pattern, providing strength and stability.

With its high strength-to-weight ratio, fiberglass woven roving is an ideal reinforcement for plastic composites across many industries. It exhibits high tensile strength along with impact, chemical and heat resistance. The woven construction provides multi-directional reinforcement, dimensional stability, and ease of handling.

Fiberglass roving is compatible with polyester, vinyl ester and epoxy resins. It is widely used as a reinforcing material in boat hulls, auto bodies, bathtubs, roofing, piping, storage tanks and other composite components. It is also valued for electrical insulation applications.

When saturating the woven roving with resin, proper wet-out and cure is critical to achieve optimal mechanical properties in the finished composite. Fiberglass roving comes in various weights, widths and weave patterns to suit the reinforcement requirements of the application. With its combination of high strength, corrosion resistance, and cost-effectiveness, fiberglass woven roving continues to be a staple composite material across many industries.

fiberglass woven roving, fiber woven roving, E-Glass Woven roving

Jinwu Glass Fiber Co., Ltd , https://www.jinwuwindows.com