Prototype Design of Solar Soil Moisture Controller to be used as an Alternative Energy for Agriculture Against the Growth of Vegetables in Khao Kho District, Phetchabun Province

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Nisit Ongate


This research aimed to design two moisture control prototypes. The first prototype humidity control unit is covered with a single layer of transparent plastic sheet all around without a humidity control system. This is different from the second prototype humidity control unit, which is covered with transparent plastic panels all around and covered with side and top mesh filters. Including an exhaust fan, humidity control, and solar cell installation for applying in vegetable cultivation of agriculturist’s group at Sado Phong sub-district, Khao Kha district, Phetchabun province in which this area faced the problem in deficient of electricity for farming. The development of these moisture control prototypes with solar energy was for renewable energy in drip irrigation for agriculture. The study compared the appropriate temperature and moisture for vegetable growth. The results of the study found that prototype 1 had average growing rate at 86% which was less than the prototype 2 with average at 92%. The best variable for plant growth was the temperature at 21 – 28 °C and the suitable moisture value was at –17 to –25 centibar which the growth rate of vegetable was able to 93 – 96%. When compared the growth rate of the old methods agriculturalists, the growth rate was at 55 – 72% which was obviously less than planting by these two prototypes which its growth rate was at 74 – 96%. Nevertheless, in applying moisture control prototypes, agriculturists can cultivate their products for 850 kilogram per rai each time, comparing with the old method of farming, agriculturists can cultivate their products for 500 kilogram per rai. From transferring of moisture control technology to agriculturists, the average score of satisfaction was at 4.35 and the standard deviation was 0.66 with the level of opinion was in the high rank.


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Ongate, N. (2020). Prototype Design of Solar Soil Moisture Controller to be used as an Alternative Energy for Agriculture Against the Growth of Vegetables in Khao Kho District, Phetchabun Province. SNRU Journal of Science and Technology, 13(1), 20-28. Retrieved from
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[1] G. Linwattana, C.M. Protacio, R.C. Mabesa, Tropical lowlands seed production of non–heading chinese cabbage (brasica rapa l. pekinesis group) using vernalization and gibberellic acid, J. Crop Sci. 23 (1997) 161-166.
[2] S. Suthar, Growth and fecundity of earthworms: perionyx excavate and perionyx sansibaricus in cattle waste solids, Environmentalist. 29 (2009) 78-84.
[3] B.W. Brook, CJ. Bradshaw, Key role for nuclear energy in global biodiversity conservation, Conserv Biol. 29 (2015) 702-12.
[4] P. Richard, B.S Linda, H. Tom, S. Sam, H. Christy, Quantifying residential PV economics in the US–payback vs cash flow determination of fair energy value, Solar Energy. 77 (2004) 363–366.
[5] S. Rawin, Drip irrigation to the fruit tree hedgerow of alley cropping in rainfed agriculture on sloping land, Naresuan Phayao Journal. 7 (2014) 233-241
[6] P. Koranat, The development of sustainable agricultural market: a study of the participation of farmers who produce vegetables safe from toxins infood safety project, Journal of Interdisciplinary Research. 4 (2015) 122-132.
[7] P. Thienchai, J. Jaturabhat, S. Kaewkanit, Analysis of cost return and an efficiency of pesticide-safe vegetables productivity in bangriang sub-district, Srinakharinwirot Research and Development Journal (Humanities and Social Sciences). 7 (2015) 63-70.
[8] P. Seeniang, S. Thaipakdee, Key success factors and constraints of organic vegetable production systems in Thailand: lessons learned from selected cases of best practices, Kasetsart J. (Soc. Sci.). 34 (2013) 162-170.
[9] S. Janjai, P. Intawee, J. Kaewkiew, C. Sritus, V. Khamvongsa, A large-scale solar greenhouse dryer using polycarbonate cover: Modeling and testing in a tropical environment of Lao People’s Democratic Republic, Renewable Energy. 36 (2011) 1053–1062.
[10] S. Sonthikun, C. Phaochinnawat, K. Fardsin, P. Kirirat, A. Kumar, P. Tekasakul, Computational fluid dynamic analysis of innovative design of solarbiomass, Renewable Energy. 92 (2016) 185-191.
[11] C. Accarat, P. Duanraem, Soil moisture control system for melon cultivation in greenhouse, Research Journal Rajamangala University of Technology Srivijaya. 11 (2019) 269-278.
[12] M.E. Meral, F. Dincer, A review of the factors affecting operation and efficiency of photovoltaic based electricity generation systems, Renewable and Sustainable Energy Reviews. 15 (2011) 2176-2184.
[13] M. Teerapat, D. Parnjit, Optimal battery energy storage system for pv grid connector for customer with time-of- use tariff, Energy Research Journal. 12 (2015) 75-94.
[14] V. Jaiboon, J. Boonyanuphap, S. Suwansri, P. Ratanatraiwong, C. Hansawasdi, Alpha amylase inhibition and roasting time of local vegetables and herbs prepared for diabetes risk reduction chili paste, As. J. Food Ag-Ind. 3 (2011) 1-12.
[15] J. Boonyanuphap, Cost-benefit analysis of vetiver system-based rehabilitation measures for landslide-damaged mountainous agricultural lands in the Lower Northern Thailand, Natural Hazards. 69 (2013) 599-629.
[16] G. Mauromicale, A. Ierna, M. Marchese, Chlorophyll fluorescence and chlorophyll content in field - grown potato as affected by nitrogen supply, Photosynthetica. 44 (2006) 76 - 82.
[17] A.A. Keeling, K.R. McCallum, C.P. Beckwith, Mature green waste compost enhances growth and nitrogen uptake in wheat (Triticum aestivum L.) and oilseed rape (Brassica napus L.) through the action of water-extractable factors, Bioresource Technology. 90 (2003) 127–132.
[18] A. Arbel, M. Barak, A. Shklyar, Combination of forced ventilation and fogging systems for cooling greenhouses, Biosystems Engineering. 84 (2003) 45-55.
[19] K. Raisaku, U. Kohei, K. Mechanism, Equilibrium of thermal decomposition of ammonium sulfate, Industrial & Engineering Chemistry Process Design and Development. 9 (1970) 489-494.