Vegetable medicine
The wide application of various pesticides in vegetable production has played a very important role for the vegetable farmers to obtain high benefits, but the occurrence of phytotoxicity is not uncommon, which also brings some unnecessary losses for vegetable farmers. Therefore, grasping the types and symptoms of crop phytotoxicity and taking preventive and control measures in a timely manner are issues that cannot be ignored in the safe use of pesticides. After consulting the relevant experts, the author summarized the following three types of crop injury. Residue-type phytotoxicity This phytotoxicity is characterized by no phytotoxicity in the current season crop after spraying, and the residual pesticides in the soil cause phytotoxicity to crops that are more sensitive to mandibles. For example, the use of Simazine herbicide in corn fields often causes phytotoxicity to crops such as sorghum and beans. This kind of phytotoxicity occurs mostly in the germination stage of the seed crops of the lower pods, lighter root tips, bud tops and other parts become brown or rot, affecting normal growth; severe rot and poor shoots, reduce the emergence rate or no seedling emergence. This kind of phytotoxicity is difficult to diagnose, and it is easy to be confused with fertilizers. Can be used to understand the history of the cultivation of crops before the crop management and management of pesticides, soil testing and other measures to diagnose, to prevent misdiagnosis and cause losses. The symptoms of chronic-type phytotoxicity do not show up immediately after the application of the phytotoxicity, and have certain latent potential, so that the growth of the crop is hindered, and the flavor of the fruit deteriorates. This phytotoxicity is often difficult to diagnose and is easily confused with other physiological diseases. When the diagnosis is made, diagnosis can be made by understanding the occurrence of pests and diseases, the type, amount, area of ​​application, and method of plant control. The acute-type phytotoxicity has the characteristics of rapid occurrence and obvious symptoms. Generally, the symptoms appear within a few hours to several days after the application. The general appearance is that the crop leaves have spots, perforation, anxiousness, curling, deformity, and withered. , yellow, green or white. The roots suffer from short and thick roots, few root hairs, yellow or thick roots, brittleness, and rot. Seed victims are unable to germinate or germinate slowly. Plants suffer from falling flowers, falling buds, malformed, smaller, spotted, brown fruit, rust, and fruit drop. This kind of phytotoxicity is mostly caused by improper use of pesticides or improper use of pesticides for seed treatment. Amino Acid is a compound in which a hydrogen atom on a carbon atom of a carboxylic acid is substituted with an amino group, and the amino acid molecule contains two functional groups, an amino group and a carboxyl group. Similar to hydroxy acids, Amino Acids can be divided into α-, β-, γ-...w-amino acids according to different positions of the amino group attached to the carbon chain, but the amino acids obtained after protein hydrolysis are α-amino acids, and There are only twenty, they are the basic units that make up Proteins. Amino Acid Glycine for Food and Drink,Low Price Food Grade Glycine,Glycine Food Grade Excellent Health Products Co.,Ltd. , https://www.sino-excellent.com
Amino acids are the basic substances that make up the protein needed for animal nutrition. It is an organic compound containing a basic amino group and an acidic carboxyl group. The amino group attached to the α-carbon is an α-amino acid. The amino acids constituting the protein are mostly α-amino acids.
Amino acids can exert the following effects through metabolism in the human body: 1 synthesizing tissue proteins; 2 converting into ammonia-containing substances such as acids, hormones, antibodies, creatine; 3 converting into carbohydrates and fats; 4 oxidizing into carbon dioxide and water and urea, generate energy