1. Select seedlings to reduce the number and opportunities of pests and diseases in greenhouse vegetables, so as to reduce the use of pesticides to reduce pollution; First, we must select seedlings that have undergone stringent quarantine inspections to prevent the spread of harmful pests and weeds. Second, use more resistant varieties and insect-resistant varieties. Again, seeds are soaked in warm soup before seedlings are raised to prevent the spread of pests and diseases through the seeds into the greenhouse. 2. Soil Treatment At present, one of the most economical, effective, and convenient methods is to utilize the high temperature of greenhouses to disinfect the soil: In August each year, when greenhouses are idle, 1500 kg of straw can be applied to every 667 square meters of greenhouses, and calcium can be 30- 60 kg (at pH <6.5 in soil) or ammonium sulfate (30 to 60 kg) (PH ≥ 6.5), then the soil is deep-turned, and then the earth is 60-70 cm in width and 30 cm in height. The abandoned shed film covers the earth and is filled with water in the trenches between the earth until it penetrates the earth. Sealing the greenhouse for more than 7 days can effectively kill various pests and diseases in the soil. 3. Post-emergence control (1) Physical control technologies such as electronic vegetables and insect pests control equipment for shed vegetables. The instruments use a combination of microwave and ozone to kill viruses, bacteria, fungi, and pests on vegetables. The effect is very significant. (2) Use biological pesticide Bt emulsion to control lepidopteran pest larvae; Abamectin pesticides to prevent pests, Liriomyza, Plutella xylostella, Pieris rapae, etc.; Release licorice bee to prevent greenhouse whitefly; Release of seven-spot ladybug Control locusts and so on. (3) Use natural pesticides 1 pepper (more spicy as possible) 0.5 kg, add 50 kg of water and cook for 15 minutes, then add the 0.1 kg of ordinary detergent to the extract, and mix it with 50 kg of water. Use with caution on melons. 2 Add fresh loofah with a small amount of water, smash, and then leave the liquid to the residue, add water to the mother liquor at a ratio of 7:23, then add a small amount of soap, stir and spray, and use with caution the melons and beans. 3 Other prevention methods such as ecological control, agricultural control, etc.
RP International Ltd is top Gellan Gum Supplier and Manufacturer in China.
Gellan gum is a water-soluble anionic polysaccharide produced by the bacterium Sphingomonas elodea (formerly Pseudomonas elodea). The gellan-producing bacterium was discovered and isolated by the former Kelco Division of Merck & Company, Inc. in 1978 from the lily plant tissue from a natural pond in Pennsylvania, USA. It was initially identified as a substitute gelling agent at significantly lower use level to replace agar in solid culture media for the growth of various microorganisms .Its initial commercial product with the trademark as "GELRITE" gellan gum, was subsequently identified as a suitable agar substitute as gelling agent in various clinical bacteriological media.
Our Annual output is 2000mt. We have professional product line for Food Thickeners Gellan Gum. Our products are Kosher, ISO, Haccp, Halal certified with best quality and strict quality control.
With regards to the productions and quality control, We has advanced manufacturing facilities and professional R&D team which providing customers with safe, healthy, hygienic and high-quality products. All the productions are processed strictly in accordance with the regulations of HACCP and ISO system. We also provide value-added services based on customers` personalized requirements in both product application and technical support.
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