First, the dilution method of powder pesticide: general powder pesticide does not need to be diluted when used, but when the crop plant is tall and dense, in order to evenly spray limited pesticides on the surface of the crop, a certain amount of filler can be added (grass, etc.) ) to carry out dilution. When diluting, first take a part of the filler, mix the required powder pesticide into the mixture, and then repeat the filling, and continue to mix until the required filling materials are all added. In the dilution process, be sure to take complete protective measures to avoid A poisoning accident occurred.
2. Dilution method of wettable powder: Usually, a two-step formulation is also adopted, that is, a relatively thick "mother liquor" is firstly mixed with a small amount of water to be fully stirred, and then poured into a vat to perform final dilution. Because the wettable powder is not good in quality, the powders tend to agglomerate together to form larger agglomerates. For example, if they are directly poured into a vat, the coarse granules will not be fully dispersed and will immediately sink into the bottom of the water. difficult. The problem to be noted in the two-step preparation method is that the amount of water used is equal to the total amount of water required, otherwise it will affect the concentration of the liquid to be prepared.
Third, the dilution method of liquid pesticides: according to the amount of dilution of the liquid and the size of the activity of the drug. The amount of liquid for prevention and control can be directly diluted, that is, the required water is contained in the prepared dispensing container, and then the quantitative drug is slowly poured into the water, and gently stirred with a small wooden stick to be used for spraying. If a large amount of liquid is needed in the prevention and control of large areas, this requires a two-step method. The specific method is to first dilute the pesticide into a mother liquor with a small amount of water, and then prepare the prepared mother liquor. Prepare the prepared clean water in the diluted ratio and mix well.
4. Dilution method of granule pesticide: granule pesticide has low active ingredient. Most of them are more than 5%. Therefore, the granules can be diluted by means of a filler and used. The dry uniform small soil particles or the same-sex chemical fertilizer can be used as a filler. When used, the granules and the filler can be well mixed. . However, when using chemical fertilizer as a filler, it is necessary to pay attention to the acidity and alkalinity of pesticides and fertilizers, so as to avoid the decomposition of pesticides after mixing.
Potassium Carbonate is White crystall powder.A basic fine potassium salt chemical material used in manufacture of optical giass, electronic tubes ,fertilizer decarbonization, pharmaceuticals , agricultural chemical, inorganic, dyes and pigments.
Potassium carbonate is the primary component of potash and the more refined pearl ash or salts of tartar. Historically, pearl ash was created by baking potash in a kiln to remove impurities. The fine, white powder remaining was the pearl ash. The first patent issued by the US Patent Office was awarded to Samuel Hopkins in 1790 for an improved method of making potash and pearl ash.
In late 18th century North America, before the development of baking powder, pearl ash was used as a leavening agent in quick breads
Potassium Carbonate
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