Tiangang's Pesticide-Resistant Improved Light Stabilizer Trial Shows Initial Success

The first-phase greenhouse-covering experiment of the pesticide-resistant improved light stabilizer of Beijing Tiangang Auxiliary Co., Ltd., a well-known Chinese additive enterprise, showed that the test film showed no obvious ageing phenomenon after more than one year of use, and its pesticide-resistance and acid-resistance performance were significantly better than ordinary light stabilizers. The experiment achieved initial success.

The combination of pesticides and greenhouse cultivation has become an important means to ensure the high efficiency and safe production of modern agriculture. However, while protecting crops such as flowers, fruits, vegetables and seedlings from pest and disease damage, the use of pesticides often causes agricultural films to age prematurely, bringing crop losses and cost increases to farmers.

In the past ten years, to meet the market demand for pesticide-resistant stabilizers, Beijing Tiangang Auxiliary Co., Ltd. has conducted in-depth research and successively launched several new pesticide-resistant improved light stabilizer products such as HS-625, T-68 and T-69. 'Tiangang's pesticide-resistant improved light-stabilizer products have reached an internationally advanced level in technology; the comparative effect of our experimental greenhouses conducted in various typical crop-condition regions across the country is the best verification,' introduced Liu Gang, deputy general manager of Beijing Tiangang.

At the end of July 2014, led by Ms. Qin Lijie, chairman of the China Agricultural Plastics Film Society, Beijing Tiangang Auxiliary and technical representatives from some foreign companies conducted an on-site inspection of three representative experimental greenhouses with harsh use conditions in Yunnan Province, to confirm the use effect of Tiangang's newly developed pesticide-resistant light stabilizer.

The experimental greenhouses are distributed in three regions: Yiliang, Kunyang and Haikou, representing three different harsh use conditions. Among them, the Yiliang greenhouse grows roses and is frequently sprayed with pesticides; the Haikou greenhouse grows vegetables with low pesticide usage, but is next to the production base of a well-known fertilizer enterprise, and is affected by boiler and exhaust gas emissions, so a large amount of acidic substances from the air often adsorbs on the film; the Kunyang greenhouse grows hydrangeas, and in addition to spraying pesticides, also controls flower color by adjusting soil acidity. In each region, the experimental greenhouse and the comparison greenhouse have consistent structure and planted crops.

On-site observations showed that agricultural films using ordinary light stabilizers often showed ageing and breakage within less than one year of greenhouse covering, while Tiangang's test film showed no obvious ageing phenomenon after more than one year of use, and its pesticide-resistance and acid-resistance performance were significantly better than ordinary light stabilizers. The experiment achieved initial success.