Response of Growth and Yield of Potato to Neb-26 as a Source of Nitrogen

Response of Growth and Yield of Potato to Neb-26 as a Source of Nitrogen

Mst. Tazmin Akhter1, Md. Rafiqul Islam1*, M. Rafiqul Islam1, Muhammad Tahir Shehzad2 and Abu Bakkar Siddique2

1Department of Soil Science, Bangladesh Agricultural University, Mymensingh, Bangladesh
2Global Centre for Environmental Remediation, The University of Newcastle, Callaghan NSW 2308, Australia.

American Journal of Agricultural Research

This Urea is a vital source of nitrogen (N) to be supplied for plants but most of it is lost through processes including volatilization, denitrification, leaching and run-off. So, it is timely to find out an alternative source of nitrogen fertilizer. A field experiment was, therefore, carried out at Soil Science Field Laboratory of Bangladesh Agricultural University, Mymensingh during 2016-2017 with a view to investigating the effectiveness of NEB-26 (a liquid N fertilizer introduced by Advanced Chemical Industries (ACI) Limited) in combination with urea on the growth and yield of potato. The soil was silt loam in texture having a pH 6.4, organic matter 1.55%, total N 0.091%, available P 3.30 mg kg-1, available K 0.08 me 100-1 g soil, available S 6.46 mg kg-1 and available Zn 0.86 mg kg-1. The experiment consisted of five treatments laid out in a Randomized Complete Block Design with four replications. The treatments were T1: Control (no N fertilizer), T2: 100% N from urea, T3: 50% N from urea, T4: 50% N from urea + 500 ml ha-1 NEB-26 and T5: 50% N from urea + 750 ml ha-1 NEB-26. The potato variety used in the experiment was ‘Diamant’. The recommended doses of N (140 kg ha-1), P (25 kg ha-1), K (135 kg ha-1) and S (15 kg ha-1) were supplied from urea, TSP, MoP and gypsum, respectively. All the fertilizers except urea were applied as basal dose. Urea was applied in three installments and the NEB-26 was applied as per treatment at the time of second installment of urea application. The crop was harvested at maturity and the yield components and yields were recorded. The results indicate that the yield attributes, tuber yield and haulm yield of potato were significantly influenced by N supplied from urea and NEB-26. The tuber yield varied from 10.83 t ha-1 in T1 (Control) to 23.20 t ha-1 in T2 (100% N from urea). The maximum tuber yield (23.20 t ha-1) was recorded in T2 (100% N from urea) which was statistically similar to T4: 50% N from urea + 500 ml ha-1 NEB-26. Based on tuber yield, the treatments can be ranked in the order of T2 >T4 > T3 >T5 >T1. The N content and uptake by both potato tuber and haulm were also influenced significantly by N supplied from urea and NEB-26. From the overall results, it can be concluded that the NEB-26 can be used in combination with urea for potato production and the use of NEB-26 can reduce about 30% N without reducing potato tuber yield.

Keywords:NEB-26, Nitrogen, Urea, Potato, Yield

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Sana Abusin. Natural resource modelling: accounting for gillnet size selectivity in dynamic deterrence model. American Journal of Agricultural Research, 2018,3:22. DOI:10.28933/ajar-2018-7-2301


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