1. Actively use agricultural measures to prevent and control. The agricultural measures for the control of weeds in the potato fields include the following: First, scabbing is performed in the early stage to loosen the soil, improve soil physical and chemical properties, and remove weeds; secondly, weeds are removed from the fields in the late growth stage to eliminate weeds in the fields. Weed seeds were also removed to reduce the base number of weed populations in the following year. Third, weed seeds were changed due to the large amount of weed seed occurring in the surface layer of the soil and the harm was great. The weed seeds were changed by changing the farming system in the soil layer in rotation. Deeply burying in the soil inhibits its germination and seedling growth. It can also reduce the density of associated weeds, change the dominant weed community in the field, and reduce the population of weeds in the field.
2. Scientific and rational use of high efficiency, low toxicity, low residual chemical herbicide control. Different herbicides, dosages and methods should be selected based on the occurrence and distribution of weed communities in potato fields. Chemical weed control techniques mainly include pre-emergence soil weeding and post-emergence weeding and treatment of weeds. At present, chemical weeding in potato fields is mainly based on safe, effective pre-emergence soil closure methods for weed control.
(1) Pre-emergence soil weeding and weed control: Potato field chemical weeding is mainly pre-emergence soil treatment, and herbicides that can be used include acetochlor against grassy weeds and part of dicotyledonous weeds. Spirits, as well as the control of alkaloids of broad-leaved weeds such as peony, peony, peony, leeks, flat larvae, purslane, chicory, broccoli, buckwheat, citron, ramie, cocklebur, and solitary Keyang) and other agents. The choice of two agents can be used either as a single agent or in order to expand the range of herbicides. 170% oxathione (Sekizine) WP. 2 Acetochlor oxazine. 3 Anwei. 4 Guang Shu Ling Ling Xi Chuan ketone.
(2) Post-emergence treatment of weeds and stems and leaves: Weapons for control of grassy weeds in post-emergence period in potato fields We can choose to use nets for catching fish, fish for fine grasses, stable fishes, efficient grasses, special sprays, fast catching nets, collecting fungus. Wait. During the 3 to 5 leaf stage of the grass weeds, 12.5% ​​of the oil oil was harvested per hectare, 1.2 to 1.5L of oil emulsion, 5% of galboiler emulsifiable concentrate 0.9 to 1.2L, and 15% of the oil was 0.75 to 0.975L of refined oil, 10.8. % Efficient gaiseng EC 0.45～0.525L, 4% EC 0.75～0.9L, 10% net catch 0.375～0.45L, 12% Lactone 0.525～0.6L, watered 300～450L, evenly Spray on the soil surface.
Active Pharmaceutical Ingredients
Active Pharmaceutical Ingredients(API) refer to the raw materials used in the production of various preparations. They are the effective ingredients in the preparations. They are various powders, crystals, extracts, etc., prepared by chemical synthesis, plant extraction or biotechnology, but Substances that the patient cannot take directly. API is intended to be used in any substance or mixture of substances in the manufacture of pharmaceuticals, and when used in pharmaceuticals, it becomes an active ingredient of the pharmaceuticals. Such substances have pharmacological activity or other direct effects in the diagnosis, treatment, symptom relief, treatment or prevention of diseases, or can affect the function or structure of the body. According to its source, active pharmaceutical ingredients are divided into two categories: synthetic chemical active Pharmaceutical ingredients and natural chemical active Pharmaceutical ingredients.
Chromium Picolinate,Tianeptine,6-Paradol,Aminobutyric acid,acetylcysteine,L-Carnosine
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