Crop water consumption (ETc) varies from region to region depending on crop type, growth stages, soil, and climate conditions. In order to obtain full yield and avoid unnecessary water usage, the water demand of the cultivated plants should be accurately calculated, and irrigation water should be applied in accordance with plant needs. In this, the study was carried out in field No.C3 of Central farm at Agricultural Engineering College and Research Institute, Kumulur, Trichy district to determine the growth stage-specific crop coefficient (Kc) and pan coefficient (Kp) for the greenhouse grown marigold (Tagetes erecta (L.). Since, a large area was occupied by a ClassA pan, the reduced-size evaporative pans (20 and 60 cm compared with Class A pan) was used and pan coefficient was determined as 0.93 and 0.96 respectively. A pan coefficient (Kp) was used to convert pan evaporation (Epan) to grass reference evapotranspiration (ETo). Based on the tensiometer readings, the depleted moisture content was taken to reckon the crop coefficient for different growth stage. The results revealed that crop coefficient (Kc) for marigold was observed as 0.37 during the initial stage (Kcin), 0.8 during mid-stage (Kcmid) and 0.47 (Kcfin) during the final stage. These results would be helpful for crop water requirement and irrigation scheduling for similar condition.
Crop Coefficient, Crop Evapotranspiration, Greenhouse, Marigold, Pan Coefficient
Bhattacharjee, S.K. (2003). Post harvest life and quality of rose cut flowers as affected by pre cooling, storage and gamma irradiation. Indian Rose Annual, 19: 116-143.
Cassel, D. K., and Nielsen, D. R. (1986). Field capacity and available water capacity. Methods of Soil Analysis: Part 1—Physical and Mineralogical Methods, (Methods of soil), 901-926. https://doi.org/10.2136/sssabookser5.1.2ed.c36
Carolina Fernandes, Jose Eduardo Cora and Jairo Augusto Campos de Araujo.(2003). Reference evapotranspiration estimation inside greenhouses. Scientia Agricola., 60(3): 591-594. https://doi.org/10.1590/S0103-90162003000300027.
Doorenbos.J and Pruitt W. O. (1977). Crop water requirements. FAO Irrigation and Drainage Paper, Rome. No: 24 - 179.
Ertek A., S. ?ensoy, C. Kucukyumuk and I. Gedik. (2004). Irrigation Frequency and Amount Affect Yield Components of Summer Squash (Cucurbitapepo L.). Agric. Water Manage., 67: 63-76. DOI: 10.1016/j.agwat.2003.12.004.
Flvio F. Blanco and V. Folegatti. (2003). Evapotranspiration and crop coefficient of cucumber in greenhouse, Revista Brasileira de Engenharia Agrícolae Ambiental, 7(2): 285-291. https://doi.org/10.1590/S1415-43662003000200017.
Keen, B. A., and Raczkowski, H. (1921). The relation between the clay content and certain physical properties of a soil. The Journal of Agricultural Science, 11(4): 441-449
Martinez-Raya, A and N. Castilla. (1989). Evapotranspiracion del pimiento en invernadero en Almeria. ITEA: Produccion Vegetal, Zaragoza.,85: 57-62.
Michael, A.M. 2012. Irrigation Theory and Practice. Text book. Vikas Publishing. 2Nd Edn.
Michael D. Dukes , L. Zotarelli and Kelly T. Morgan. (2010). Use of Irrigation Technologies for Vegetable Crops in Florida, Hort.Technology, 0(1). https://doi.org/10.21273/HORTTECH.20.1.133
Mila.A.J., A.R. Akanda, S.K. Biswas and M.H. Ali. (2016). Crop co-efficient values of sunflower for different growth stages by lysimeter study. British Journal of Environment and Climate Change, 6(1): 53-63. DOI: 10.9734/BJECC/2016/24246
Montesano, F., A. Parente and P. Santamaria. (2010). Closed cycle sub irrigation with low concentration nutrient solution can be used for soilless tomato production in saline conditions. Sci. Hortic., 124: 338–344. DOI :10.1016/j.scienta.2010.01.017
Montesano, F.F., A. Parente, N. Lamaddalena, M. Todorovic and L. Trotta, (eds.).(2015). Introduction in Modern Technologies, Strategies and Tools or Sustainable Irrigation Management and Governance in Mediterranean Agriculture (IrriMed2015), Proceedings–Abstr.,(Valenzano, IT: CIHEAM)., 19–20.
Pardossi, A., L. Incrocci, G. Incrocci, F. Malorgio, P. Battista and L. Bacci. (2009). Root zone sensors for irrigation management in intensive agriculture. Sensors.,9: 2809 –2835. DOI: 10.3390/s90402809
Pérez-Parra, J., E. Baeza, J.I. Montero and B. Bailey. (2004). Natural ventilation of parral greenhouses. Biosystem Engineering., 87:355-366. DOI: 10.1016/j.biosystemseng.2003.12.004.
Sandra Ibarra. 1997. Soil moisture and tensiometer measurements made to assist the management of supplementary Irrigation of maize in eastern Ontario, Ph.D Thesis. Department of Agricultural and Biosystems Engineering, Macdonald Campus of McGill University, Montreal.
Sarkar, S., Y. Kiriiwa, M. Endo, S. Uchino and A. Nukaya (2008). Possibility of high soluble solid content tomato production under water stress conditions controlled by matric potential. J. Japan. Soc. Hort. Sci.,77: 251–258.
Scott, M. L., I. Ascarelli and G. Olson.(1968). Studies of egg yolk pigmentation. Poult. Sci., 47: 863-872. https://doi.org/10.3382/ps.0470863
Singh, V.K, K.N Tiwari and D.T Santosh (2016). Estimation of crop coefficient and water requirement of dutch roses (Rosa hybrid) under greenhouse and open field conditions. Irrigation Drainage Sys Eng., 5: 169. DOI: 10.4172/2168-9768.1000169
Thalheimer, M. (2003). Tensiometer modification for diminishing errors due to the fluctuating inner water column. Soil Sci. Soc. Am. J.,67: 737–739. DOI: 10.2136/sssaj2003.0737
Whalley, W.R., E.S. Ober, and M. Jenkins. (2013). Measurement of the matric potential of soil water in the rhizosphere. J.Exp.Bot., 64: 3951–3396. DOI: 10.1093/jxb/ert044
William. C. Fonteno.(1993). Problems and consideration in determining the physical properties of horticultural substrate. Acta Horticulture., 342: 197-204.
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