Vol. 6, Issue 2 (2018)
Effect of Ni on important nitrogen transforming enzymatic activities at different crop growth stages in maize plant and soil
Author(s): Priyanka Pannu, HM Patel, PV Mehta and Akhila K
Abstract: A pot experiment was carried out at Net House of Department of Soil Science and Agricultural Chemistry of Navsari Agricultural University, Navsari in Rabi season in the year 2016-17. This experiment was including 16 treatment combinations comprising four N levels (UR80, UR120, AS80 and AS120) and four Ni levels (Ni0, Ni2.5, Ni5 and Ni7.5 ppm). The Ni application through NiCl2.6H2O was given before fifteen days of sowing. Different parameters like urease enzyme activity in soil, urease enzyme activities in plants along with N as well as Ni concentration were analysed at different time intervals of N split application. The application of urea at the rate of 80 and 120 kg N ha-1 enhanced urease enzyme activity in maize leaves as compared to the ammonium sulphate. Whereas application of Ni at 5.0 and 7.5 mg kg-1 were equally effective in increasing urease enzyme activity in maize leaves. The Ni application either at 5.0 or 7.5 mg kg-1 with urea N level (80 kg ha-1) were equally effective in increasing urease enzyme activity in maize leaves. The levels of N application, urea 80 kg N ha-1 and urea 120 kg N ha-1 showed significant increase in soil urease enzyme activity after 3rd day and 7th day of first and second N split application while, application of Ni at 5.0 mg kg-1 and 7.5 mg kg-1 showed higher soil urease enzyme activity but below this level resulted in reduced activity of urease enzyme in the soil. The combined effect of N application at 80 kg ha-1 along with Ni application at 7.5 mg kg-1 resulted into maximum urease enzyme activity being at par with UR80Ni2.5 and UR80Ni5 in soils after 3rd day and 7th day of first and second N split application.
Pages: 950-953 | 603 Views 72 Downloads
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How to cite this article:
Priyanka Pannu, HM Patel, PV Mehta, Akhila K. Effect of Ni on important nitrogen transforming enzymatic activities at different crop growth stages in maize plant and soil. Int J Chem Stud 2018;6(2):950-953.
