The flowering period to the boll opening period is the peak period of the fertilizer needed in cotton life. At this time, if the root fertilization is limited, spraying fertilizer on the leaf surface becomes an indispensable means. Among them, urea and potassium sulfate are better choices.
Cotton has a large demand for nitrogen and potassium. When cotton is deficient in nitrogen, spraying urea is the best choice. Urea nitrogen content up to 46%; is a neutral fertilizer, can be mixed with pesticides, etc.; high solubility in water, easy to use; easily absorbed by the cotton beads; Per acre spray 2% urea solution 25 kilograms, equivalent to 0.5 kilograms of urea, if absorbed by cotton plants, enough to meet the needs of 1000 boll development. When potassium is deficient in cotton, the lower old leaves gradually turn yellow from the tip to the base and from the leaf margin to the center. Spraying potassium sulfate solution at a concentration of 2% at this time can effectively supply potassium to cotton plants. It is preferable to use powdered or microcrystalline high-quality potassium sulfate that dissolves fast, has no precipitate and no residue.
Description and Field of Application
Purpose
The Metapathia-GR Hunter software can operate only with the telemetric nonlinear analysis data processing apparatus "Metatron" and its subsequent modifications. The telemetric nonlinear analysis data processing device is compatible with the IBM-type PCs and intended for studying reaction of a biological object to different types of the informational impact. "Metatron" allows correlating the measurement process with the process affecting it and performs the following.
Metatron Hunter 4025,Metapathia Gr Hunter 4025,Metatron 4025 Nls,Metatron Gr Hunter 4025,Vector V16,Vector V19
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