What is the difference between protective, contact, and absorptive bactericides?

Protective, contact-killing fungicides do not enter the plant body and only deposit on the surface of the crops for protection. The control effect is stable, and it is not easy to produce antibiotic resistance. Including copper preparations (basic copper sulphate, copper hydroxide), inorganic sulfur bactericides (sulfur, lime sulfur), organic sulfur bactericides (mancozeb, thiram), organic arsenic bactericides (Teubacter), Aromatic bactericides (pentachloronitrobenzene), substituted benzene bactericides (chlorothalonil), dicarboximide bactericides (promethine, sulfacin); protective, contact bactericide agents After the plant has absorbed it, it will work in the plant to kill invading germs, or affect plant metabolism, change the plant's response to germs or prevent the occurrence of diseases. Including organophosphorus bactericides (ethylaluminophosphate), benzoimidazoles and thiophanate-methyl (carbendazim, thiophanate-methyl), sterol biosynthesis inhibitors (prochloraz, triadimefon, carbazole, cyanobacteria) Azoles, propiconazole), phenylamides (metalaxyl), carbamates (feroxamycin, ethametasone), isoxazoles (hymexazol), substituted ureas (frozen urea cyanide, cream Urea Cyanomanganese), other systemic fungicides (tricyclazole, polyoxin fungicides dimethomorph, methiconmorphine manganese zinc).

Peptides Powder

Peptides Powder is also called Nano Oligopeptide Collagen (OCO, Nano active Oligopeptide Collagen, or Nano Collagen for short), also known as Oligopeptide, micro peptide, short peptide. Small peptides generally refer to oligopeptides composed of 2-3 amino acids, with an average molecular weight of about 300 daltons. The final products of protein (collagen) digestion in the digestive tract are usually small peptides rather than free amino acids. Small peptides can be completely absorbed and enter the blood circulation in the form of two or three peptides. Small peptides play an important role in protein nutrition.

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