National Public Agricultural Research Project ", the North Plateau Mountain-point source pollution monitoring and threshold of N and P fertilizer input," recently launched in Lanzhou.
Northern plateau west of Taihang Mountain area means, Wushaoling east, the Great Wall to the south of the Qinling Mountains to the north of Highlands and the valley. The regional soil erosion caused by the residual nitrogen and phosphorus losses and the film is the main point source agricultural pollution, seriously restricting the sustainable development of agriculture.
Scientific and technical personnel will be a period of 5 years of scientific research, fertilizer and plastic sheeting for the occurrence of pollution and the main factors in order to spring wheat, spring corn-based, growing areas to carry out monitoring of agricultural nonpoint source pollution and key influencing factors, nitrogen and phosphorus fertilizer inputs critical value and the main growing areas of plastic film residual pollution monitoring.
Key research is divided into three categories: spring wheat, spring maize growing areas of agricultural nonpoint source pollution monitoring and the main influencing factors, spring wheat, maize critical value of N and P fertilizer input, the main growing areas of plastic film residual pollution monitoring. Scientists hope that through these studies to determine the altitude mountain areas in northern wheat, corn nitrogen and phosphorus into the critical value, proposed to reduce the cultivation of film residual pollution model.
The project is borne by the Gansu Academy of Agricultural Sciences, Experimental Station of Hebei Province, Yanshan, Beijing Normal University and other units to participate. (Li Feng)