Agricultural chemicals
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Copper Sulfate
Cas No. ：7758-98-7Dark blue triclinic crystals or blue crystalline granules or powder. Has a disgusting metallic odour. Slow weathering in dry air. Soluble in glycerin, soluble in dilute ethanol, insoluble in absolute ethanol.
In agriculture, it is mainly used to prevent and control various diseases of fruit trees, malt, potatoes, rice, etc. It is also a kind of trace element fertilizer, which can improve the stability of chlorophyll, prevent chlorophyll from being destroyed prematurely, promote crop absorption, and crop copper deficiency When the fruit tree is lacking in copper, the fruit is small, the pulp becomes hard, and the fruit tree dies in severe cases. The crops sensitive to copper are cereal crops such as wheat, barley, oats, etc., which are mainly used for seed treatment and top dressing outside the root.
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Chlormequat
Cas No. ：999-81-5The pure product is white crystal. It has a fishy smell and is insoluble in absolute ethanol, ether, benzene and xylene. Slightly soluble in dichloroethane, isopropanol
Chlormequat is an excellent plant growth regulator, which can be used in crops such as wheat, rice, cotton, tobacco, corn and tomato, to inhibit the elongation of crop cells, but not to inhibit cell division, which can make plants shorter and stems shorter. Thick, leaves turn green, can make crops resistant to drought and waterlogging, prevent crops from growing excessively and lodging, resist salinity and alkali, prevent cotton from dropping bolls, and increase potato tubers.
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Chitosan
Cas No. ：9012-76-4White, odorless, tasteless, insoluble in water, soluble in acidic solution
Chitosan is a natural plant nutrition growth promoter–the raw material of foliar fertilizer. The foliar fertilizer compounded by chitosan can not only kill insects, resist diseases, and play the role of fertilizer, but also can Decompose animal and plant residues and trace metal elements in the soil, thereby converting them into plant nutrients, enhancing plant immunity, and promoting plant health
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Calcium Nitrate
Cas No. ：10124-37-5Calcium nitrate, molecular weight 164.09. Colorless cubic crystal, density 2.504g/cm, melting point 561 ℃ , deliquescent in air, easily soluble in water. May form monohydrate and tetrahydrate. Among them, Ca(NO3)2·4H2O, molecular weight 236.15, colorless crystal, easy to deliquescence, soluble in methanol and acetone.
Calcium nitrate is a new type of compound fertilizer containing nitrogen and calcium. It is used as a quick-acting fertilizer for acidic soil and a rapid calcium supplement for plants. It has fast fertilizer effects, water flushing and leaf spraying have the characteristics of rapid calcium and nitrogen supplementation, and is widely used in greenhouses. and large areas of farmland.
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Calcium cyanamide (lime nitrogen)
Cas No. 156-62-7The pure product is a colorless hexagonal crystal. Industrial products are dark gray powder due to impurities such as carbon (graphite). Has the smell of calcium carbide or ammonia. Insoluble in water. It is a strong alkaline slow-acting nitrogen fertilizer.
When used as a fertilizer, because calcium cyanamide has strong alkalinity, it is suitable for acidic soil, and it is generally used as a base fertilizer, which has a certain soil improvement effect. When in contact with water it initially forms cyanamide, which is toxic to plants, but is quickly converted to ammonia. This poisonous effect causes plant leaves to fall off, so it can be used as a herbicide, fungicide, insecticide and cotton defoliant. In pesticides, it is mainly used to produce carbendazim, benomyl and intermediate cyanamide.
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Calcium Ammonium Nitrate
Cas No. ：15245-12-2The appearance color of calcium ammonium nitrate is generally off-white or taupe particles, and there are also green ones. Among them, ammonium nitrogen and nitrate nitrogen each account for half, and the nitrogen content is much less than the original ammonium nitrate. However, it has low hygroscopicity, is not easy to agglomerate, has good dispersibility, and has good physical properties.
A new type of high-efficiency compound fertilizer is a high-efficiency and environmentally friendly green fertilizer widely used in greenhouses and large-scale farmland. Calcium ammonium nitrate contains a large amount of calcium carbonate, and it has good effect and effect when used as top dressing on acidic soil. When applied in paddy fields, its fertilizer effect is slightly lower than that of ammonium sulfate with equal nitrogen content, while in dry land, its fertilizer effect is similar to that of ammonium sulfate. The cost of nitrogen in calcium ammonium nitrate is higher than that in ordinary ammonium nitrate. As a low-concentration fertilizer, calcium ammonium nitrate is a physiologically neutral fertilizer, and long-term application has a good effect on soil properties. It can be used as top dressing on cereal crops. Nitrogen in calcium ammonium nitrate particles can be released relatively quickly, while lime dissolves very slowly. The results of field trials in acidic soils showed that calcium ammonium nitrate had good agronomic effects and could increase the overall level of yield.
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Brassinolide
Cas No. ：72962-43-7Appearance is white crystal, melting point 256 ～ 258 ℃ , solubility in water is 5 mg/kg, soluble in various organic solvents such as methanol, ethanol, chloroform, acetone, tetrahydrofuran, etc., is a low-toxic plant growth regulator, and has low toxicity to humans and animals
Brassinolide is internationally recognized as the most active, broad-spectrum, and non-toxic plant growth regulator. It has dual functions of causing plant cell division and elongation, promoting root development, enhancing photosynthesis, and increasing chlorophyll content of crops. Promote the effective absorption of fertilizers by crops, assist the good growth of disadvantaged parts of crops, promote strong roots and seedlings, preserve flowers and fruits; improve the resistance of crops to cold resistance, drought resistance, salt-alkali resistance, etc., and significantly reduce the occurrence of diseases; and can significantly Relieve the occurrence of phytotoxicity, and use it after phytotoxicity can detoxify, so that the crops can quickly recover and eliminate disease spots; brassinolide can also significantly increase the yield and improve the quality of crops.
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Boric acid
Cas No. :10043-35-3White powdery crystal or triclinic scaly shiny crystal. It has a smooth feel and no odor. Soluble in water, alcohol, glycerin, ethers and essential oils.
Promote the transformation and operation of carbohydrates in plants, improve the viscosity of cell protoplasm, and enhance crop resistance to drought, cold and heat, and disease resistance.
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Borax
Cas No. :1303-96-4Colorless translucent crystal or white crystalline powder. Odorless, salty. Slightly soluble in cold water, easily soluble in hot water and glycerin; slightly soluble in ethanol and carbon tetrachloride.
The borax solution is used as a plant fertilizer. The leftovers of borax production (magnesium hydroxide and borax mother liquor) can be reacted with sulfuric acid to obtain a mixture of boric acid and magnesium sulfate, that is, boron magnesium fertilizer. Borax is a kind of weed control in non-cultivated land and industrial areas. It has strong phytotoxicity. It has been used as a preservative and fungicide to prevent mildew in oranges.
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Beauveria bassiana
Off-White Powder
Beauveria bassiana is a broad-spectrum insecticidal fungus. Researchers at home and abroad use Beauveria bassiana to control agricultural and forestry pests such as corn borer, pine caterpillar, small sugarcane borer, blind toon, grain weevil, citrus red spider and aphids.
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Bacillus subtilis
Yellow Powder
Bacillus subtilis is widely used in the field of agriculture, because of its non-polluting, non-pollution, non-pathogenic and other characteristics, at the same time, it can also activate the soil and colonize fertilizers in the soil, and various enzymes and antibiotics produced by fermentation , It gives the nutrition needed by the plant root system and has a good fermentation basis.
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Bacillus Megaterium
Yellow Powder
Improving soil fertility can decompose insoluble phosphorus and potassium in the soil and transform it into phosphorus and potassium compounds that can be absorbed by crops, increasing the supply of nutrients in the soil.Prevention and control of plant diseases has a strong inhibitory effect on cotton blight, wheat sheath blight, take-all, Pseudomonas solani, Fusarium wilt, Verticillium wilt, bacterial blight, and Fusarium root nodules.