The respected Comrade
"It is important to apply in time the achievements made in agricultural science and technology."
In order to overcome a serious food crisis all over the world, we have to put the agricultural production on a scientific basis and increase the yield.
Especially, the agricultural production is decreased because of the abnormal climatic phenomena on account of the global warming.
This reality requires to develop the effective plant growth regulating agent.
The researchers of the chemical faculty of
Developing the various essential plant growing regulators is an criterion for measuring the level of agricultural science and technology development of a country.
The researchers of
The plant growth regulators "Jung San No.1 and No.2" are dialkyl-1-hydroxyalkylphosphonate compounds and act as the pyruvic acid dehydrogenation enzyme inhibitors to have the unique characteristics of plant growth regulating activity.
Each has its own main content: "Jung san No.1" has di (2-chloroethyl)-1-hydroxyethylphosphonate and "Jung san No.2" has diethyl-1-hydroxyethylphosphonate.
The useful concentrations of "Jung san No.1" and "Jung san No.2" are 2~10ppm and they are used as the seed processing and foliar nutrition.
The most important character of "Jung San No.1 and No.2" is shortening of the growing period, accelerating the senility and increasing the per jongbo grain yield.
The growing period is shortened 5~7 days in "Jung San No.1" and 3~5 days in "Jung san No.2" and per jongbo increased yield is 107~115% in the case of the grain crops and 120~130% in the vegetable crops.
The most effective crops are bean, cotton, wheat, barley, vegetable, maize and rice.
The plant growth regulators "Jung San No.1 and No.2"have been applied to the hundreds of thousands hectare of farmland all over the country during the last 8 years so they have made a great contribution to the agricultural production.
The researchers of the chemical faculty of
