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Pesticides play an important role in the treatment of crop diseases, pests and weeds, but continuous rainfall weather is not conducive to pesticide prevention and control of diseases
.
Researchers in China have studied and prepared a highly adhesive nano-gel material, which can effectively control the loss of pesticide active ingredients under rain conditions and reduce soil pesticide pollution
.
Sun Xianchao, a professor at the School of Plant Protection of Southwest University, said that continuous rainfall will wash away the remaining pesticide components on the surface of crop leaves, which will not only make the use of pesticides unable to achieve the expected disease prevention and control goals, but the large amount of pesticide components flowing into the soil will also cause environmental pollution in the farmland
.
Sun Xianchao led the scientific research team to prepare nano-sized hydrogels using biodegradable materials
.
This is a new type of soft substance formed by connecting polymers to each other to form a network and filling the network with water as a solvent.
It has high foliar adhesion strength
.
After the antiviral compound is wrapped in the nanogel and sprayed on the surface of the crop leaves, the gel makes the active ingredients of the pesticide adhere to the crop leaves and releases them slowly for a long time at a controllable rate
.
The results of agricultural production experiments conducted by Sun Xianchao’s team showed that pesticide spraying prepared by nanogel technology is easy to operate, and can reduce the proportion of drug loss caused by rain washing under continuous rainy weather, improve the efficiency of drug use, and reduce soil environmental pollution
.
In addition, the gel material is safe, harmless and degradable, which helps to further improve the safety of pesticide use, and provides a new strategy for the development of new green pesticide formulations and the application of multifunctional pesticides
.
Relevant research results have been published online recently by the International Journal of Agriculture and Food Chemistry in the field of agriculture and forestry science and technology
.
.
Researchers in China have studied and prepared a highly adhesive nano-gel material, which can effectively control the loss of pesticide active ingredients under rain conditions and reduce soil pesticide pollution
.
Sun Xianchao, a professor at the School of Plant Protection of Southwest University, said that continuous rainfall will wash away the remaining pesticide components on the surface of crop leaves, which will not only make the use of pesticides unable to achieve the expected disease prevention and control goals, but the large amount of pesticide components flowing into the soil will also cause environmental pollution in the farmland
.
Sun Xianchao led the scientific research team to prepare nano-sized hydrogels using biodegradable materials
.
This is a new type of soft substance formed by connecting polymers to each other to form a network and filling the network with water as a solvent.
It has high foliar adhesion strength
.
After the antiviral compound is wrapped in the nanogel and sprayed on the surface of the crop leaves, the gel makes the active ingredients of the pesticide adhere to the crop leaves and releases them slowly for a long time at a controllable rate
.
The results of agricultural production experiments conducted by Sun Xianchao’s team showed that pesticide spraying prepared by nanogel technology is easy to operate, and can reduce the proportion of drug loss caused by rain washing under continuous rainy weather, improve the efficiency of drug use, and reduce soil environmental pollution
.
In addition, the gel material is safe, harmless and degradable, which helps to further improve the safety of pesticide use, and provides a new strategy for the development of new green pesticide formulations and the application of multifunctional pesticides
.
Relevant research results have been published online recently by the International Journal of Agriculture and Food Chemistry in the field of agriculture and forestry science and technology
.
