An Improvement of Optimal Allocation Water For Cultivating Supper Chilli

At present, Supper Chilli is important raw material to cook for most Thai people. They can widely growth in the northeast region of Thailand. However, there are many problems in product and growth because of insufficient water requirement. This paper improved the optimal allocation water for cultivating supper Chilli according to crop water requirement in all stages. The daily allocation plan to cultivate Supper Chilli was designed based on crop water requirement of accepted Penman-Monteith method using LP model. This daily plan was used to be the condition of finding optimal source of water (surface and ground water) to distribute for cultivation. The optimal sources of water with the optimal quantity of water were used to construct the control distribution system. There are five types of irrigation system that were conducted in the study including original irrigation, drip irrigation on surface, drip irrigation subsurface for 5 % change of soil moisture content and long duration change of soil moisture content 10% and 20%. The Supper Chilli was cultivated in the all conducted systems. The yield products were measured and recorded. The results found that the LP model provided daily crop water requirement of the Supper Chilli equally Penman-Monteith equation. The suitable sources of water with quantity of require water were derived from optimization model. The yield products of the drip irrigation were higher than theirs existing irrigation methods. The yield products of the drip irrigation subsurface for 10 % change of soil moisture content were the highest. In conclusion, optimal allocation water for cultivating Supper Chilli based on crop water requirement could be daily plan of cultivation that remarked the suitable sources of water. The crop water requirement of accepted Penman-Monteith method provided the highest crop benefit.

[2]  William O. Pruitt,et al.  Crop-Water Production Functions , 1983 .

[3]  Subhash Chander,et al.  A simple dated water-production function for use in irrigated agriculture , 1988 .

[4]  L. K. Sam-Amoah,et al.  Effect of irrigation interval on growth and development of tomato under sprinkler. , 2010 .

[5]  M. Mahgoub,et al.  Response of Schefflera Arboricola l. To Gypsum and Sulphur Application Irrigated with Different Levels of Saline Water , 2011 .

[6]  L. S. Pereira,et al.  A recommendation on standardized surface resistance for hourly calculation of reference ETo by the FAO56 Penman-Monteith method , 2006 .

[7]  D. M. Bhandarkar,et al.  Optimal cropping pattern in a canal command area , 2001 .

[8]  Franklin M. Fisher,et al.  An inter-seasonal agricultural water allocation system (SAWAS) , 2001 .

[9]  C. Akinbile,et al.  Evapotranspiration, Soil and Water Quality Implications on Upland Rice Production , 2011 .

[10]  A. Kangrang,et al.  An Observation of Groundwater in Rapid Urbanization Area , 2008 .

[11]  J. Doorenbos,et al.  Yield response to water , 1979 .

[12]  Mohamed Haouari,et al.  Optimal cropping patterns under water deficits , 2001, Eur. J. Oper. Res..

[13]  Manoj K. Nayak,et al.  Optimal crop planning and water resources allocation in a coastal groundwater basin, Orissa, India , 2006 .

[14]  A. Derbala,et al.  Effect of Irrigation Frequency and Potassium Source on the Productivity, Quality and Storability of Garlic , 2009 .

[15]  Sudhindra N. Panda,et al.  Interseasonal Irrigation System Planning for Waterlogged Sodic Soils , 1996 .

[16]  C. Kirda,et al.  Deficit irrigation scheduling based on plant growth stages showing water stress tolerance , 2002 .

[17]  K. Kaboosi,et al.  Sensitivity analysis of Doorenbos and Kassam (1979) crop water production function. , 2010 .