Carrot Productivity under Various Levels of Irrigation and Fertilization
Asian Research Journal of Agriculture,
Carrot (Daucus carota L.) is normally grown under irrigation system. In Tanzania, carrot productivity is still low, mainly due to poor agronomic practices as a result of limited information on optimal levels of irrigation water that enhance crop production. Thus, a study was conducted to evaluate the interactions between various irrigation levels under drip irrigation and soil-based NPK fertilizer for optimal growth, yield, and sugar content of carrots in Morogoro, Tanzania. The crop water requirement was calculated in terms of crop evapotranspiration (ETc) as the product of ETo, Kc, and the ground cover reduction factor (Kr). Soil-based fertilizer was applied at a level of 150 kg NPK ha-1, while irrigation levels applied were 100, 80, and 60% of ETc. It was found that the growth, yield, and sugar content of carrots were affected differently at various irrigation water (IW) application levels. The growth parameters of carrots improved consistently to optimum IW levels. Further, the highest yield of 33.0 tons ha-1 of carrots was obtained under 100% of IW, and the lowest yield of 18.47 tons ha-1 was obtained at 60% of IW. The 60 and 80% IW level yields did not differ significantly (p>0.05). Carrots grown at a deficit irrigation water level of 80% were found to have the highest content of sugar. Therefore, for optimal growth and yield, an irrigation level of 100% is recommended for carrots. However, for high sugar content, an irrigation level of 80% is recommended.
- Drip irrigation
- carrot yield
- carrot growth
- reference evapotranspiration
- NPK fertilizer
How to Cite
Rowshon MK, Amin MSM, Mojid MA, Yaji M. Estimated evapotranspiration of rice based on pan evaporation as a surrogate to lysimeter measurement. Paddy and Water Environment. 2014;12(1):35–41.
Abirdew S, Girma M, Mengistu M. Determination of crop water requirements for maize in Abshege woreda, Ethiopia. Earth Science and Climatic Change. 2018;9(1):2017–2019.
Mehta R, Pandey V. Reference evapotranspiration and crop water requirement of wheat and maize in gujarat. Journal of Agrometeorology. 2015;17(1): 107–113.
Quezada C, Fischer S, Campos J, Ardiles D. Water requirements and water use efficiency of carrot under drip irrigation in haploxerand soil. Soil Science and Plant Nutrients. 2006;11(1):16 – 28.
DeCarvalho DF, Gomes DP, DeOliveira DH, Guerra JGM, Rouws JRC, DeOliveira, FL. Carrot yield and water-use efficiency under different mulching, organic fertilization and irrigation levels. Agricultural and Environmental Engineering. 2018;22(7):445–450.
PNFS. Sources of plant nutrients and soil amendments. Plant Nutrition for Food Security. 2002;23(11):91–234.
Gutezeit B. Yield and quality of carrots as affected by soil moisture and N-fertilization. Horticultural Science and Biotechnology. 2001;76(6):732–738.
Abdel-Mawly SE. Growth, yield, N uptake and water use efficiency of carrots as influenced by irrigation level and nitrogen fertilization rate. Journal of Agriculture Science. 2004;7(1):111-122.
Everaarts AP, DePutter H, Maerere AP. Profitability , labour input , fertilizer application and crop protection in vegetable production in the arusha region , Tanzania. Applied Plant research, Wageningen University and Research Centre, Lelystsd. 2015;37.
Melanie G. Chinese new year influences vegetables prices.2019;
Allen RG, Pereira LS, Raes D, Smith M. Crop evapotranspiration, guidelines for computing crop water requirements. Irrigation and drainage paper 56. FAO: Rome. 1998;301-302.
Stern R, Rijks D, Dale I, Knock J. INSTAT climatic guide. Statistical service centre: Washington. 2006;247–281.
Doorenbos J, Pruitt WO. Crop water requirements. Irrigation and Drainage paper. FAO., Sub-regional office for East and Southern Africa. 1977;35-54.
David, DB. Multiple range and multiple f tests. International Biometric Society. 2013;11(1):1–42.
FAO. guidelines for soil profile description soil development and conservation services. Land and Water Division. (2nd Edition). FAO: Rome.1977;96–97.
Landon, JR. Booker tropical soil manual. paper back edition. Longman scientific and techical copublish: USA. 1991;96–98.
Park DM, White SA, Mccarty LB, Menchy kN. Interpreting irrigation water quality reports; 2015. Sited visited on 24/08/2021.
Zaman M, Shahid SA, Heng L. Guideline for salinity assessment, mitigation and adaptation using nuclear and related techniques. springer nature: Switzerland; 2018.
Zeipi S, Alsi I, Lepse L. The effect of watering on yield and quality of carrots. Vegetable Crops Res. Bull. 2014;12(7):223–230.
Joslanny HV, Catariny CAl, Elis M, Laylton AS, Gustavo H, Pedro HFF. irrigation levels and soil covers in carrot crop. Journal of Agricuture and water resources. 2020;5(4):12-15.
Ludong DPM. Effects of irrigation rate on the growth , yield , nutritive value , and water use efficiency of Carrot and Broccoli. Published Dissertation for Award of MSc. Degree at Curtin University of Technology, Australia. 2008;87.
Baba LY, Simon G. The influence of irrigation frequency on yield and water use efficiency of carrot. Agricultural and Water Resources. 2015;5(7):47–55.
Fikselová M, Mareček J, Mellen M. Carotenes content in carrot roots as affected by cultivation and storage. Vegetable Crops Research Bulletin. 2010;73(1):47–54.
Arshad, Khan AA, Babar MM, Sarki A. Effect of different levels of water soluble NPK fertilizers on the growth and yield of carrot by using drip irrigation. International Journal for Research in Applied Science and Engineering Technology. 2015;3(5): 708–714.
Ali A, Mostofa AH, Mondal F, Farooque AM. Effect of nitrogen and potassium on yield and quality of carrots. Biological Sciences. 2003;6(18):1574-1577.
Shikha FS, Sultana N, Bhuiya SH, Rahman J, Akter N. Effect of potassium fertilization on the growth, yield and root quality of carrot. International Journal of Applied Research. 2016;2(3):151–156.
Lobna Y. Effect of phosphorus and potassium on the growth and yield of carrot. Acta Hort. 2014;7(2):361- 365.
El-nasr A, Ibrahim EA. Effect of different potassium fertilizer rates and foliar application with some sources of potassium on growth , yield and quality of carrot plants. Plant Production. 2011; 2(4):559–569.
Sylvestre H, Constance M, Esdras N. Effect of poultry manure and NPK on growth and yield of carrot in Rulindo. Agricultural Science. 2015;2(4):117-123.
Habimana S, Constance M, Esdras N. Effect of poultry manure and NPK on growth and yield of carrot in Rulindo. Agricultural Science. 2014;2(4): 117-123.
Murwira HK, Mutuo P, Nhamo N, Marandu AE, Rabeson R, Mwale M, Palm CA. Fertilizer equivalency values of organic materials of differing quality. Integrated Plant Nutrient Management in Sub-Saharan Africa. Wallingford, UK: CABI. 2002;113–122.
Lyngdoh GBS. Response of carrot to different levels of nitrogen, phosphorus and potassium. Horticultural Journal. 2001;14(2):163–169.
Noella J, Umuhoza K, Sylvestre H, Philippe S. Nutritional quality of carrot as influenced by farm yard manure. World Agricultural Sciences. 2014;2(5):102-107.
Brito LM, Amaro AL, Mourão I, Coutinho J. Transformation of organic matter and nitrogen during the composting of the solid fraction of bovine slurry. Soil Science. 2008;32(5):1959–1968.
Afrin A, Islam MA, Hossain M, Hafiz MH. Growth and yield of carrot influenced by organic and inorganic fertilizers with irrigation interval. Journal of Bangladesh Agricultural University. 2019;17(3):338–343.
Jahan I, Hossain M, Karim M. Effect of salinity stress on plant growth and root yield of carrots. Progressive Agriculture. 2020;30(3):263–274.
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