The ecological situation and modern agro-landscape improvement, soil fertility maintenance uplifting, formation of ecologically safe agro-ecosystems with germplasm diversity in crop rotation, cultures-soil conditioners are the focus study. Nitrogen is a vital element required larger quantities by plants; however, lack it has become problem organic farming. presented study suggests ways farming ...

After proper sanitation treatment, organic wastes such as animal by-products, e.g. catering waste, slaughterhouse waste and manure can be used as fertilisers and soil conditioners and thereby contribute to a sustainable society. However, organic waste may contain pathogenic microorganisms and can thus present a health risk to both humans and animals if not properly treated. In the present thesi...

Air and water pollution control programs sometimes result in production of solid wastes that are difficult to manage. The sludges from sewage treatment plants and flue gas scrubbers are two examples. In many coastal communities, there is no alternative to ocean dumpling of sewage sludges for the foreseeable future. The use of sludges as soil conditioners, their conversion to fuels by pyrolysis,...

The defrosting performance of automotive air conditioners plays an important role in driving safety. This paper uses CFD to simulate the internal flow field automobile numerically. Simulation results show that distribution is unreasonable. horizontal grilles are added at outlets improve automobile. Air-flow jet angle and length conditioning (L1, L2) selected as design variables based on radial ...