NDLI: Effects of slow-release fertilizers on nitrate leaching, its distribution in soil profile, N-use efficiency, and yield in potato crop

Content Provider	Springer Nature Link
Author	Zareabyaneh, H. Bayatvarkeshi, M.
Copyright Year	2015
Abstract	The purpose of the present study was to study the effect of slow-release fertilizers on nitrate leaching, its distribution in soil profile, N-use efficiency (NUE), and yield in potato cultivation in the years 2012 and 2013. The treatments included nano-nitrogen chelate (NNC), sulfur-coated nano-nitrogen chelate (SNNC), sulfur-coated urea (SCU), and urea (U) at three levels of nitrogen input (46, 92, and 138 kgN/ha). For this purpose, a factorial experiment in completely randomized designs (CRD) was designed and conducted with three replicates. The results of variance analysis showed that each treatment had significant effects on yield, leaching, and soil nitrate. Comparison of nitrate leaching values due to the treatments showed that NNC, SNNC, and SCU fertilizers led to reduced nitrate leaching levels by 35.72, 41.56, and 9.94 % compared to U fertilizer application. In contrast, potato yield increased by 56.10, 59.61, and 49.76 % with NNC, SNNC, and SCU fertilizers, respectively, compared to U fertilizer application. The highest NUE value in both years was observed in 46 kgN/ha of nitrogen input treatment. This value in the years 2012 and 2013 was 1056 and 793 kg/kg and belonged to the SNNC and SCU treatments, respectively. Moreover, the maximum tuber nitrate concentration (228 mg/kg) was recorded with the third nitrogen level of urea.
Starting Page	3385
Ending Page	3393
Page Count	9
File Format	PDF
ISSN	18666280
Journal	Environmental Earth Sciences
Volume Number	74
Issue Number	4
e-ISSN	18666299
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2015-04-07
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Nano-nitrogen fertilizers Nitrogen use efficiency Sulfur-coated urea Urea Agria Geology Hydrology/Water Resources Geochemistry Environmental Science and Engineering Terrestrial Pollution Biogeosciences
Content Type	Text
Resource Type	Article
Subject	Global and Planetary Change Earth-Surface Processes Soil Science Environmental Chemistry Pollution Geology Water Science and Technology

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