بررسی اثر تاریخ کشت گیاه ریحان بر روی بهره‌وری آب نرمال شده در مدل آکواکراپ

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشجوی ارشد، گروه مهندسی آبیاری و زهکشی، پردیس ابوریحان، دانشگاه تهران، تهران، ایران

2 استاد، گروه مهندسی آبیاری و زهکشی، پردیس ابوریحان، دانشگاه تهران، تهران، ایران

3 استادیار، گروه باغبانی، پردیس ابوریحان، دانشگاه تهران، تهران، ایران

چکیده

پارامتر بهره­وری آب نرمال شده یکی از ورودی­های مدل آکواکراپ است که بر اساس آن عملکرد زیست‌توده شبیه­سازی می­شود. این پارامتر در مدل آکواکراپ برای هر گیاه ثابت فرض شده است. از آنجائی که تاریخ کشت بر روی عملکرد محصول مؤثر می­باشد، لذا این سؤال در این پژوهش مورد بررسی قرار گرفت که آیا تاریخ کاشت گیاه بر پارامتر بهره­وری آب نرمال شده مؤثر است یا خیر؟ گیاه مورد مطالعه ریحان بود که در تابستان سال 1396 در مزرعه کشاورزی پردیس ابوریحان دانشگاه تهران واقع در منطقه پاکدشت در سه زمان مختلف (سه تیمار T1، T2 و T3) به فاصله 10 روز از هم کاشته شد. در طی دوره رشد هر تیمار، 24 بار زیست‌توده اندازه­گیری و پارامتر بهره­وری آب نرمال شده برآورد شد. بهره­وری آب نرمال شده برای تیمار T1، T2 و T3 به ترتیب برابر 2/11، 7/13 و 9/13 گرم بر مترمربع براورد شد. ضریب تعیین و میانگین جذر مربعات خطا با استفاده از داده­های صحت سنجی به ترتیب حدود 99/0 و کمتر از 14 درصد تعیین شد. تفاوت در اعداد فوق نشان می­دهد که تاریخ کاشت بر روی مقدار بهره­وری آب نرمال شده مؤثر می­باشد.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Investigating the effect of Basil planting date on AquaCrop’s normalized water productivity

نویسندگان [English]

  • Tahmine Dehghani 1
  • Ali Rahimikhoob 2
  • Mostafa Arab 3
1 Master Science student, Department of Irrigation and drainage Engineering, Aburaihan College, University of Tehran, Tehran, Iran
2 Professor, Department of Irrigation and drainage Engineering, Aburaihan College, University of Tehran, Tehran, Iran
3 Assistant Professor, Department of Horticulture, Aburaihan College, University of Tehran, Tehran, Iran
چکیده [English]

Normalized water productivity is one of the AquaCrop model inputs, which simulates the performance of the biomass. This parameter has been considered to be constant for each crop in Aquacrop model. As the planting date affects the crop yield, this question is raised whether the planting date affects the normalized water productivity parameter or no? The proposed crop was Basil which was planted in  summer  2017 in the Field of Abourihan University of Tehran in  Pakdasht area at three different times (three treatments T1, T2 and T3) with 10 days intervalsThe biomass and normalized water productivity were measured 24 times during  the growth period of each treatment. Normalized water productivity for T1, T2 and T3 treatments were estimated 11.2, 13.7 and 13.9 g/m2, respectively. The coefficient of determination and the root mean square error were determined to be 0.99 and less than 14% respectively, using validation data. The difference among the above numbers indicates that the planting date is effective on the amount of normalized water productivity.

کلیدواژه‌ها [English]

  • Biomass
  • Pakdasht
  • simulation
  • yield Production
Allen, R. G., Pereira, L. S., Raes, D. and Smith, M. (1998). Crop evapotranspiration: guidelines for computing crop requirements, FAO Irrigation and Drainage Paper No 56. FAO, Rome.
Auld, D. L., Bettis, B. L., Crock, J. E. and Kephart, K. D. (1988). Planting date and temperature effects on germination, emergence, and seed yield of chickpea. Agronomy Journal, 80(6), 909-914.
Babazadeh, H. and Sarai Tabrizi, M. (2012). Assessment of AquaCrop Model under Soybean Deficit Irrigation Management Conditions. Journal of Water and Soil, 26(2), 329-339. (In Farsi)
Dadkhah, A., Kafi, M. and Rasam, Gh. (2009). The effect of planting date and plant density on growth traits, yield quality and quantity of Matricaria (Matricaria chamomilla). Journal of Horticultural Sciences, 23(2), 100-107. (In Persian)
English, M. (1990). Deficit irrigation. I: Analytical framework. Journal of Irrigation and Drainage Engineering, 116, 399-412
Ghanbari, A., Roshani, H. and tavasoli, A. (2013). Effect of Planting Date on Some Agronomic Characteristics and Grain Yield of Winter Wheat Cultivars. Journal of crop ecophysiology (agriculture science), 2(22), 127-144. (In Persian)
Gormus, O. and Yucel, C. (2002). Different planting date and potassium fertility effects on cotton yield and fiber properties in the Cukurova region, Turkey. Field Crops Research, 78(2), 141-149.
Gower, S. A., Loux, M. M., Cardina, J. and Harrison, S. K. (2002). Effect of Planting Date, Residual Herbicide, and Postemergence Application Timing on Weed Control and Grain Yield in Glyphosate-Tolerant Corn (Zea mays). Weed Technology, 16(3), 488-494.
Geerts, S. and  Raes, D. (2009). Deficit irrigation as an on-farm strategy to maximize crop water productivity in dry areas. Agricultural Water Management, 96(9), 1275-1284
Kafi, M., Rezvan Beidokhti, Sh. and Sanjani, S. (2008). The effect of planting date and density on yield and morpho-physiological characteristics of Shallot (Allium altissimum Regel) in Mashhad. Journal of Horticultural Science, 25(3): 310-319. (In Farsi)
Karimi Avargani, H., Rahimikhob, A. and Nazarifar, M. (2016). Calibration and Validation of AquaCrop Model for Barley in Pakdasht Region – Iran. Journal of Soil and Water Research, 47(3), 539-549. (In Farsi)
Mashal, M., Varavypour, M., Sadatnouri, S. and Zare Zirak, E. (2009). Optimizing Consumptive Water depth for Corn by Deficit-Irrigation (Case Study: Varamin area). Journal of Agricultural Research, 8(4), 123-134. (In Farsi)
Mousavizadeh, S. F., Honar, T. and Ahmadi, S. H. (2016). Assessment of the AquaCrop Model for simulating Canola under different irrigation managements in a semiarid area. International Journal of Plant Production, 10(4): 425-445.
Nafziger, E. D. (1994). Corn planting date and plant population. Journal of Production Agriculture, 7, 59–62.
Patrignani, A. and Ochsner, T.E. (2015). Canopeo: A Powerful New Tool for Measuring Fractional Green Canopy Cover. Agronomy Journal, 107(6), 2312-2320.
Raes, D., Steduto, P., Hsiao, T. C., and Fereres, E. (2009a). AquaCrop-The FAO Crop Model to Simulate Yield Response to Water: Reference Manual Annexes.
Raes, D., Steduto, P., Hsiao, T.C. and Fereres, E. (2009b). AquaCrop – the FAO crop model to simulate yield response to water: II. Main algorithms and software description. Agronomy Journal, 101, 438–447.
Steduto, P. Hsiao, T. C. Raes, D. and Fereres, E. (2009). AquaCrop— The FAO crop model to simulate yield response to water: I. Concepts and underlying principles. Agronomy Journal, 101(3), 426-437.
Steduto, P., Hsiao, T.C. and Fereres, E. (2007). On the conservative behavior of biomass water productivity. Journal of Irrigation Science, 25(3), 189–207.
Todorovic, M., Albrizio, R., Zivotic, L., Saab, M.T.A., Stockle, C. and Steduto, P. (2009). Assessment of Aqua Crop, CropSyst, and WOFOST models in the simulation of sunflower growth under different water regimes. Journal of Agronomy, 101 (3), 509–521.
Vega A. J. (2002). Effects of planting date, genotype and their interactions on sunflower yield: II. Components of oil yield. Crop Science, 42, 1202-1210.