Shi Kefeng won the National Science and Technology Progress Award again

On January 10, the key technology creation and application project of plant-derived oil-coated fertilizer controlled release by Shikefeng Chemical Co.
, Ltd.
and South China Agricultural University won the second prize of the 2019 National Science and Technology Progress Award.
This is after the 2008 "Development and Application of Long-acting Slow Release Fertilizers", Shi Kefeng has once again won the National Science and Technology Progress Award, becoming one of the companies that have won the most National Science and Technology Progress Awards in the fertilizer industry in my country.
In the process of ensuring food security, my country uses one-third of the world's chemical fertilizers.
Large-scale fertilization not only leads to low fertilizer efficiency and high losses, but also prone to non-point source pollution.
Because the coating layer can prevent the fertilizer from dissolving and losing quickly, the coated fertilizer is recognized as a high-utilization and environmentally friendly controlled-release fertilizer; but there are also mainstream coating materials that are difficult to degrade, and the release of coated nutrients is poor.
The traditional fluidized bed The coating efficiency of large-scale production is low, the comprehensive cost is high, the nutrient supply does not match the crop demand, and the promotion is difficult.
According to Xie Yongjun, chairman of Shi Kefeng Chemical Co.
, Ltd.
, the main completion person of the project, this award-winning key technology creation and application project for controlled release of plant-derived oil-coated fertilizers adopts excellent controlled release performance, low cost, easy access to materials, and Degradable and renewable vegetable oil is used as the coating material.
Innovative results have been achieved by creating solvent-free in-situ surface polymerization coating technology, coating controlled release technology, synchronized nutrition type coated controlled release formula fertilizer and its simultaneous application technology.
.
Shi Kefeng's plant-derived oil-coated fertilizers have three major characteristics: First, they have created plant-derived oil-coated materials, created pore-forming and compound-coated controlled-release technologies, and realized easy degradation of membrane materials and adjustable nutrient release.
Second, in response to the problems of low efficiency and high cost of large-scale coating of traditional fluidized beds, a surface modification membrane material toughening and solvent-free coating process was created to improve the efficiency of fluidized bed coating; invented automation and continuous coating The process realizes the intelligentization, continuity, high efficiency and harmlessness of the coating, and reduces the overall cost.
The third is to address the problems of insufficient nutrient supply in the early stage of one-time application of coated fertilizers, excess nutrient supply in the later stage, and lack of fertilizer in the early stage of conventional fertilizer application at the first stage and the lack of fertilizer in the late stage of burning seedlings.
The nutrient supply and demand do not match, and establish an effective application mode of coated fertilizer for target-crop-specific-synchronized nutrition.
The creation of a synchronous nutrient fertilizer formulation technology has achieved the same nutrient supply and demand, high fertilizer utilization rate and large-scale application of coated fertilizers.