The closure/withdrawal of mines, as one of the important measures to implement the State Council’s “Opinions on supporting the coal industries to resolve excess production capacity and achieve destruc
Ammonia is a key substance in the formation of haze precursors, and livestock pen is one of the main sources of ammonia emission. Here, we selected fresh cow and sow manure to evaluate the impacts of
The yield and composition factors were measured during the maturity period. A representative sample of 1 m2 was selected from each plot to investigate the number of ears, and 30 wheat plants were rand
