Plant growth regulators in the market know more about it
Plant growth regulators are usually chemically strong. If they are not well kept, they will often cause problems such as degradation and failure, which will affect their normal regulation of crop growth. In severe cases, they may even cause side effects, leading to crop yield reduction. Therefore, before applying plant growth regulators, the quality should be identified. According to the dosage form of plant growth regulators, several simple methods of quality inspection were introduced separately for the reference of farmers. Crystalline powder This kind of product has complicated production process, good application effect and strict storage conditions. It is most representative for gibberellin (90% O2) and ABT rooting powder (increasing production spirit), and it requires drying, low temperature (even refrigerator) and other conditions. Store it. To inspect the quality of such drugs, a small amount of medicament may be taken and placed in a cup filled with clean water, stirred evenly, and allowed to stand for half an hour. If the liquid is cloudy and unclear in suspension, there will be traces of sediment on the bottom of the cup, indicating that the medicament has not failed; If the liquid is translucent or clear, it means that the drug has expired and cannot be used. In addition, the color of the crystalline powder can be visually observed, such as when the gibberellin crystalline powder is white in general, indicating no problem with the quality. powder Powder is a common formulation of plant growth regulators. For example, vitality, powder strength increasing factor, chlorophyllin, and multi-failure are all powders. Such dry powder medicaments should be free of moisture-absorbing agglomerates. If the hands feel damp, they can be pinched into groups, indicating that they have been deactivated; if they form a block, they indicate complete failure. In addition, the powder is generally more stable and the color does not change easily. If it is found that it fails to maintain its “natural†color, it indicates that the efficacy has changed. tablet Tablets are a new formulation of plant growth regulators, such as sweet potato sorghum and mesitride. The easiest way to check tablet quality is to determine the water solubility, that is, put the tablet in a small amount of water. If bubbles appear quickly and gradually dissolve with the bubble tablet, the quality is better; if the tablet is not in water The bubbles did not decompose, indicating that the tablets had been damp and should not be reused. Water agent Aqueous agents are also a common type of plant growth regulators, and are widely used for convenience. For example, ethephon, triacontanol, miconin, and chlormequat are all packaged in water. The most important thing in identifying the quality of water agent is to observe whether there is any precipitate. For example, if the triacontan alcohol solution is found to have precipitated precipitation, it means that the direct application of water to the pesticide has lost its effect. Only the addition of triacontanol in the milk is added. Ethanol can be used after dissolution. Most of the water-plant growth regulators currently on the market are compound-type, such as high-yielding spirit, high-yield-producing element, and spray-applied treasure. Because a certain amount of mineral elements or trace elements and organic matter are contained therein, it is easy to cause microbial pollution and lose its physiological activity. Therefore, before using such regulators, it is necessary to carefully check whether there is any contamination by microorganisms. If there is any pollution, it should stop. use.
Food additives refer to chemically synthesized or natural substances added to food in order to improve the quality, color, aroma and taste of food, as well as for the needs of antiseptic and processing technology. Due to the rapid development of the food industry, food additives have become an important part of the modern food industry, and have become an important driving force for technological progress and technological innovation in the food industry. In the use of food additives, in addition to ensuring that they play their due functions and roles, the most important thing is to ensure the safety and hygiene of food.
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