Data from: Effects of fertilizer on inorganic soil N in East Africa maize systems: vertical distributions and temporal dynamics

Tully KL, Hickman J, McKenna M, Neill C, Palm CA

Date Published: March 1, 2016

DOI: http://dx.doi.org/10.5061/dryad.5qr62

 

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Title Bi-Weekly soil N in Kenya
Downloaded 7 times
Description Bi-weekly potassium chloride-extractable N in soils collected 0-15cm in field sites in Yala, Kenya. Data span 26-Apr-2012 to 4-Dec-2013.
Download WeeklyKCl_KE.csv (25.94 Kb)
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Title Bi-Weekly soil N in Tanzania
Downloaded 8 times
Description Bi-weekly potassium chloride-extractable N in soils (0-15cm) in Tanzania plots. Collection dates span 9-Nov-2012 to 2-Apr-2014.
Download WeeklyKCl_TZ.csv (38.96 Kb)
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Title Initial soil data from depth profiles in Kenya and Tanzania
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Description Initial soil NO3-N, NH4-N and pH from 0-400 cm depth profiles.
Download Initial_DP_KETZ_zeroN.csv (4.773 Kb)
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Title Soil depth profile data from Kenya and Tanzania after 2 years of cultivation
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Description Soil NO3-N, NH4-N, pH from maize trials in Kenya and Tanzania collected after 2 years of cultivation in unfertilized (0N) and fertilized (200 N) plots.
Download Yr2_DP_KETZ_zero200.csv (11.94 Kb)
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Title Soil depth profile data from Tanzania after 2 years of cultivation (organic vs. inorganic comparison)
Downloaded 6 times
Description Soil NO3-N, NH4-N, and pH in Tanzania plots receiving either 75 kg of N as inorganic fertilizer or 75 kg N as organic fertilizer from Gliricidia sepium leaves. Depth profiles collected after 2 years of maize cultivation.
Download Yr2_DP_TZ_Glir75.csv (4.673 Kb)
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Title Depth profile data from Kenya after 3 years of maize cultivation
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Description Soil data from depth profiles collected in Kenya plots after 3 years of cultivation. Note that there are fewer depth categories. Also, plots were bulked by fertilizer treatment, so there is no replication in this data set. These data were used for qualitative comparison to the other profiles, but not in statistical analyses.
Download 2014_CIAT_DP.csv (720 bytes)
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When using this data, please cite the original publication:

Tully KL, Hickman J, McKenna M, Neill C, Palm CA (2016) Effects of fertilizer on inorganic soil N in East Africa maize systems: vertical distributions and temporal dynamics. Ecological Applications 26(6): 1907-1919. http://dx.doi.org/10.1890/15-1518.1

Additionally, please cite the Dryad data package:

Tully KL, Hickman J, McKenna M, Neill C, Palm CA (2016) Data from: Effects of fertilizer on inorganic soil N in East Africa maize systems: vertical distributions and temporal dynamics. Dryad Digital Repository. http://dx.doi.org/10.5061/dryad.5qr62
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