Effect of Nitrogen and Phosphorus on the Growth and Seed Yield of Spinach

Main Article Content

Md. Rafiqul Islam
Khaleda Khatun
Tahmina Mostarin
Md. Ehsanul Haq
Md. Nahidul Islam
Bithi Rani Biswas
Jinia Afsun

Abstract

The experiment was conducted at the farm of Sher-e-Bangla Agricultural University, Dhaka, Bangladesh during Rabi (November 2017 to March 2018) season to find out the growth, yield and economic benefit of spinach seed as influenced by nitrogen and phosphorus. The research involved two factors. Factor A: Four levels of nitrogen; N0= 0 kg/ha N1= 27.6 kg/ha, N2=55.2 kg/ha, N3= 82.8 kg/ha, and factor B: Four levels of phosphorus; P0= 0 kg/ha; P1 = 15.84 kg/ha, P2= 31.68 kg/ha, P3= 47.52 kg/ha. There were 16 treatment combinations in the experiment and laid out in Randomized Complete Block Design (RCBD) with three replications. Quality tests of seeds were done based on the germination test (%), seed vigor test (Electrical conductivity). In case of nitrogen, the highest seed yield (1.10 t ha-1), germination percentage (87.33%) and lowest value in EC test (11.87 dS/cm) were obtained from N2, while the lowest seed yield (0.81 t ha-1), germination percentage (79.33%) and highest value in EC test ( 13.87 dS/cm) from N0. For phosphorus levels, the highest seed yield (1.05 t ha-1), germination percentage (86.58 % and) and lowest value in EC test (11.79 dS/cm) were recorded from P2, whereas the lowest seed yield (0.84 t ha-1), germination percentage (79.91%) and highest value in EC test (13.35 dS/cm) from P0. Due to mutual effect, the highest seed yield (1.30 t ha-1), germination percentage (91.33%) and lowest value in EC test (10.2 dS/cm) were noted from N2P2, whereas the lowest seed yield (0.69 t ha-1), germination percentage (72.66%) and highest value in EC test (14.83 dS/cm) from N0P0. From the economic point of view, the highest Benefit-Cost Ratio (BCR) (1.59) was found in the treatment of N2P2 and the lowest BCR (1.01) was found in the treatment of N0P0. It is apparent that the treatment combination N2P2 gave the best performance for the seed yield and economic benefit of spinach.

Keywords:
Growth, nitrogen, phosphorus, seed yield.

Article Details

How to Cite
Islam, M. R., Khatun, K., Mostarin, T., Haq, M. E., Islam, M. N., Biswas, B. R., & Afsun, J. (2019). Effect of Nitrogen and Phosphorus on the Growth and Seed Yield of Spinach. Asian Plant Research Journal, 3(1), 1-9. https://doi.org/10.9734/aprj/2019/v3i130056
Section
Original Research Article

References

1. George RAT. Vegetable seed production. New York, America. 1985;318.
2. BBS. Year book of Agricultural statistics of Bangladesh. 2016 28th Ed. Bangladesh Bureau of statistics. Statistics Division, Ministry of planning. Govt. of the people Republic of Bangladesh. 2016;204.
3. Anonymous. Requirement and supply of seeds. Report of a task force, Ministry of Agriculture, Government of the Peoples Republic of Bangladesh, Dhaka. 1995;284.
4. Milford GFJ, Armstrong MJ, Jarvis PJ, Houghton BJ, Bellett DM, Jones J, Leigh RA. Effects of potassium fertilizer on the yield, quality and potassium offtake of sugar beet crops grown on soils of different potassium status. J. Agric. Sci. 2000;135: 1-10.
5. Eckert D. Efficient fertilizer use of nitrogen. John Willy and Sons, New York, America. 2010;1-19.
6. Griffith B. Efficient fertilizer use- phosphorus. McMillan Co. Amsterdam, Netherland. 2010;1-7.
7. Cantliffe D. Nitrate accumulation in vegetable crops as affected by photoperiod and light duration (beets, radish, spinach, beans). J. Am. Soc. Hort. Sci. 1992;97: 414-418.
8. Jaworska G. Content of nitrates, nitrites, and oxalates in New Zealand spinach. Food Chem. 2005;89:235-242.
9. Canali S, Montemurro F, Tittarelli F, Masetti O. Effect of nitrogen fertilization reduction on yield, quality and N utilization of processing spinach. J. Food. Agric. Environ. 2008;6(3&4):242-247.
10. Wang ZH, Zong ZQ, Li SX, Chen BM. Nitrate accumulation in vegetables and its residual in vegetable fields. Environ. Sci. 2002;23(11):79-83.
11. Fadaly KA, Mishriky JF. Effect of nitrogen sources and levels on growth, yield and mineral composition of spinach. Bulletin of Faculty of Agriculture, University of Cairo. 2000;41(3):973-988.
12. Assiouty MM, Sedera SA, Giza D. Effect of bio and chemical fertilizers on seed production and quality of spinach. Int. J. Agril. Biol. 2005;7(6):947–952.
13. Boroujerdnia M. Ansari NA .Effect of different levels of nitrogen fertilizer and cultivars on growth, yield and yield components of Romaine Lettuce (Lactuca sativa L.). Middle Eastern and Russian J. Plant. Sci. Biotech. 2007;1(2):47-53.
14. Ambia K, Hossain M, Haque M, Mosiur A, Halder C, Krisna S. Evaluation seed yield and quality of different genotypes of spinach (Beta vulgaris). Sci. Agri. 2016; 16(2):61-66.
15. Zaki MS, Halawa SS. Effect of nitrogen fertilizer and growth stimulants on flowering behavior, seed yield and its quality of spinach. Annal. Agric. Sci. 2016;54(2):345-354.