Celery is widely cultivated in China. It is often used in the whole growth process to use gibberellin and brassinosteroids to help the celery grow well. In addition to this, there are various pesticide fungicides .
Celery spraying the plant growth regulator gibberellin solution can promote cell division and growth, and the absorption of nutrients by the cells reaches a peak 8 hours after spraying. According to the test, the optimal concentration of gibberellin to promote the growth of celery is 0.004% - 0.009%. During the normal growth of celery, the leaf surface can be sprayed 2 to 3 times every two weeks.
If the nutrient supply of celery plants is insufficient, the phenomenon of yellowing of leaves, stem cracking, and thin stems will occur after spraying gibberellin solution, which directly affects the yield and quality of celery. Therefore, spraying gibberellin should be combined with foliar spray fertilizer to supplement nutrients. The conventional formula for foliar application is 0.2% potassium dihydrogen phosphate plus 0.03% borax plus 5% brown sugar.
Gibberellin is an acidic preparation and is prohibited from being mixed with an alkaline preparation. During the spraying, the soil is kept moist, the plants must be strong, and the rain should be avoided.
When spraying gibberellin, other pesticides can be mixed, such as carbendazim, epoxiconazole, ether oxystrobin, etc., which can well prevent the occurrence of various diseases of celery.
More pesticide knowledge , please pay attention to China Pesticide Network
Pyrite as Fillers Used in Grinding Wheels/ Abrasive Tools
Ablation grinding wheel / abrasive( filling agent )
PYRITE__As fillers used in grinding wheels/ abrasive tools
Place of Origin: Henan Luoyang, China
Pyrite, Iron pyrites , pyrites lump, Ferro sulphur, Pyrites powder.
Product Description
Detailed introduction: s filling agent for ablating grinding wheel abrasive, which can effectively reduce the grinding wheel temperature during ablation, improve the heat resistance, and prolong the service life of the grinding wheel.
Formation of a protective layer
(1)The reaction absorbing oxygen occurs between 400 and 475 degrees, thereby reducing the oxidation of resin, reducing the oxidation burn of workpieces, and prolonging the working life of grinding wheels at high temperature.
4 FeS2 + 11 O2→2 Fe2O3 + 8 SO2
(2) 4 FeS + 7 O2→4 Fe2O3 + 4 SO2
400-475 degrees is a limit that the grinding wheel can easily reach. The above reaction creates an oxygen-free and hypoxic environment for the grinding wheel at the micro level, thereby improving the high-temperature performance of the grinding wheel.
Decomposition reaction occurs at 650-degree heat absorption, thereby reducing the working temperature of the grinding wheels.
FeS2→FeS + S
(3) It enters the melting state at about 1100 degrees, which becomes a good lubricant to protect the grinding wheel FeS(s)→FeS(l).
(4)Sulfur, sulfur dioxide and sulfur trioxide react with the workpiece surface to form FexSy:
Quality:
S: 48%min, FE: 42%min, SIO2: 3.0%max, PB: 0.1%max,
ZN: 0.1%max, AS: 0.1%max, . C: 0.3%max, CU: 0.2%max,
H20: 1.0%max, SIZE: 95%min
Granularity: (0-3)mm/(3-8)mm/(3-15)mm/(15-50)mm or other particle size.
Packing: 25KG/500KG/1000KG/BAG or 1000KG/BAG or other packaging.
Note: if there are special requirements, the product can be customized according to clients` requirements.
(In addition, our company is specialized in the production of `Hengkai Metallurgical" Brand - ferro sulphur series for foundry, copper removal agent series for lead smelting, debismuthizing agent for lead smelting, iron sulphide series for resin grinding wheel abrasive industry, iron sulphide series for brake pad friction industry, iron sulphide series for heavy metal wastewater treatment, iron disulphide series for soil improvement, iron disulphide for lithium battery anode, alloy sand series for wear-resisting flooring industry, ferrous sulphide powder series for ferrous sulphide cored wire, ferrous sulphide for ferrous sulphide cored wire, iron sulphide for resin grinding wheel, ferrous sulphide powder for heavy metal wastewater treatment, ferrous sulphide powder for soil improvement, ferrous sulphide cored wire, pyrite, ferrous sulphide ore, molybdenum oxide, high purity molybdenum trioxide, ammonium molybdate, titanium dioxide, cryolite powder, mullite, etc.)
Pyrite As Fillers Used In Grinding Wheels/ Abrasive Tools--HKYJ-LHT-SL
Abrasive Tools Pyrite
LUANCHUAN COUNTY HENGKAI METALLURGICAL MATERIALS SALES CO.,LTD , https://www.pyritechina.com