@article{Singh:197989,
      recid = {197989},
      author = {Singh, Pradeep Kumar},
      title = {Hot Bed & Cold Frame Construction and Use},
      journal = {Asian Journal of Agriculture and Rural Development},
      address = {2012-09},
      number = {393-2016-23825},
      series = {14-99-AJARD-447-451},
      pages = {5},
      year = {2012},
      abstract = {Hot beds and cold frames are used by gardeners for  propagating vegetables, flowers and ornamentals. Hot beds  are used for starting the plants and cold frames for  tempering or hardening plants to outdoor conditions before  transplanting. For most home gardeners the same frame can  serve both purposes. The principle difference between the  two is that hot beds have a heat source. Traditionally, hot  beds and cold frames were built even with or slightly below  ground level and covered by glass sash. Present-day frames  are often completely above ground and plastic covered  because film is generally available at a reasonable cost.},
      url = {http://ageconsearch.umn.edu/record/197989},
      doi = {https://doi.org/10.22004/ag.econ.197989},
}