African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6576

Full Length Research Paper

Mathematical model for nursery raising inside greenhouse

S. H. Sengar1* and S. Kothari2
1Department of Electrical and Other Energy Sources, College of Agricultural Engineering and Technology, DBSKKV, Dapoli, Dist: Ratnagiri-415712, India. 2College of Technology and Engineering, Department of Renewable Energy Sources, Maharana Pratap University of Agriculture and Technology, Udaipur-313001, India.  
Email: [email protected]

  •  Accepted: 04 March 2013
  •  Published: 26 July 2013

Abstract

Farmers require initially high input to raise nursery seedling/cuttings. Farmers’ further activity related to cultivation depends on healthy and available seedlings. Once a farmer has prepared the land and cannot get good seedling, he becomes weak for some season. Studying of environment is a must for planning nursery raising according to thermal profile which can be obtained in greenhouse. Keeping this in mind, mathematical model was developed and evaluated for predicting thermal environment inside the 80 km2 arch shaped greenhouse. The maximum increase in greenhouse air temperature was 13.92°C for solar radiation of 500 W/m2 with 0°C ambient temperature. Experimental and calculated values of greenhouse temperature were almost the same with variation of 2 to 3°C. The theoretical values obtained from model were in reasonably good agreement with the experimental results. Therefore, the mathematical model could be used to predict temperature conditions inside the greenhouse for a variety of climatic parameters. Selection of plants’ nursery inside the greenhouse was determined according to predicted thermal environment. As par the thermal profile found inside the greenhouse, plumery plants’ nursery was selected and its sprouting, survival percentage and economic were calculated for the farmers’ awareness.

 

Key words: Arch shaped greenhouse, mathematical model, nursery, economics.