First, anti-fire bud Before the rice germination, seed valley to be tanned dry, selected net, soaked thoroughly, and strict disinfection. When germination, the temperature should be broken at 38 °C and germination at 28 °C. Smelt at room temperature. Second, the rotten buds should be leveled before sowing, so that the fertilization should be uniform, and the broadcast should be conducted in a clear and clear manner, and the weather should be kept as a reasonable water layer. It was found that the black roots should be drained immediately and a layer of vegetation ash should be scattered. Third, anti-dead seedlings from the sowing to the two-leaf stage to do a sunny sunny ditch water, cloudy half-ditch water, rain drained water. After the second leaf encounters the cold current, it is flooded with seedlings. After the cold, the storm should be drained in the morning. In the field where dead seedlings have already occurred, horse water should be filled once a day, and discharged immediately after each irrigation. Fourth, anti-cotton rot in the paddy field should be replaced by 2 to 3 times or drained and drained, 5000 to 1200 kilograms per acre with 5000 times the enemy crush solution, or spraying 100 kg of 0.5% copper sulfate solution. V. Anti-roughness The disease usually occurs when the temperature is high and rice seedlings are deficient in water. 1 to 2 days to change the water, and then drain the water, you can reduce the incidence.
Polybutylene Succinate PBS
White particles, polyethylene glycol butyl diacid butyl ester (PBS) by succinic acid and butyl glycol by condensation polymerization of synthetic, resin in milky white, odorless, vulnerable to a variety of microorganisms or plants and animals in nature of the enzyme catabolism, eventually decomposed into carbon dioxide and water, is typical of completely biodegradable polymer material has good biological compatibility and biological absorbability;Density of 1.26 g/cm3, melting point 114, according to the high or low molecular weight and molecular weight distribution, crystallinity between 30 ~ 45% in the 1990 s it into the material research field, and quickly became can be widely applied in the universal one of research hotspots of biodegradable plastic materials, heat resistant performance is good, heat distortion temperature, and the products using the temperature can exceed 100 synthetic raw material sources can be either its oil resources, also can through fermentation by biological resources, PBS are outstanding in biodegradable plastic materials.
Polybutylene Succinate Pbs,Soft And Flexible Pbs,Good Dimensional Stability Pbs,Good Flow Ability Pbs
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