This report describes standardized data for “N2Africa demo - Northern Tanzania, 2014, Season II.”. These data were standardized on 2023-08-21 by Eduardo Garcia Bendito with this R script. The original data are available here under a CC-BY license.

This is the full citation of the data set:

Samuel Adjei-Nsiah; Endalkachew Woldemeskel; Edward Baars; Joost van Heerwaarden; Fred Kanampiu; Ken Giller; Theresa Ampadu-Boakye; Esther Ronner; Regis Chikowo; Peter Ebanyat; Jean-Marie Sanginga; Frederick Baijukya; Paul Woomer; Lloyd Phiphira; Nkeki Kamai (2014). N2Africa demo - Northern Tanzania, 2014, Season II. International Institute of Tropical Agriculture (IITA). doi:10.25502/7v23-gp02

The dataset has 79 records and 30 variables for common bean in Tanzania.


These are the first 25 records:

records
dataset_id trial_id record_id country adm1 adm2 longitude latitude date planting_date on_farm is_survey treatment crop variety dmy_total yield_part yield residue_yield fertilizer_type N_fertilizer P_fertilizer K_fertilizer OM_used OM_type OM_amount irrigated row_spacing plant_spacing plant_density
doi_10.25502_7v23-gp02 FB_DEMO_TZ_TL010_2 1 Tanzania Lushoto Dule m 38.439 -4.545 2014-12-14 2014 TRUE TRUE pk+fym common bean Lyamungo 90 890.6250 seed 1398.4375 NA PKS 0.0000 24.46875 32.625 TRUE farmyard manure NA FALSE NA NA NA
doi_10.25502_7v23-gp02 FB_DEMO_TZ_TL010_4 2 Tanzania Lushoto Dule m 38.439 -4.545 2014-12-14 2014 TRUE TRUE npk common bean Lyamungo 90 1164.0625 seed 1445.3125 NA NPK 39.0625 70.31250 93.750 NA NA FALSE NA NA NA
doi_10.25502_7v23-gp02 FB_DEMO_TZ_TL010_5 3 Tanzania Lushoto Dule m 38.439 -4.545 2014-12-14 2014 TRUE TRUE sympal common bean Lyamungo 90 843.7500 seed 1031.2500 NA sympal 0.0000 71.87500 46.875 NA NA FALSE NA NA NA
doi_10.25502_7v23-gp02 FB_DEMO_TZ_TL010_1 4 Tanzania Lushoto Dule m 38.439 -4.545 2014-12-14 2014 TRUE TRUE ctontrol common bean Lyamungo 90 1218.7500 seed 2226.5625 NA none 0.0000 0.00000 0.000 NA NA FALSE NA NA NA
doi_10.25502_7v23-gp02 FB_DEMO_TZ_TL010_3 5 Tanzania Lushoto Dule m 38.439 -4.545 2014-12-14 2014 TRUE TRUE fym common bean Lyamungo 90 820.3125 seed 1710.9375 NA none 0.0000 0.00000 0.000 NA NA FALSE NA NA NA
doi_10.25502_7v23-gp02 FB_DEMO_TZ_TL010_6 6 Tanzania Lushoto Dule m 38.439 -4.545 2014-12-14 2014 TRUE TRUE pk common bean Lyamungo 90 945.3125 seed 1421.8750 NA PKS 0.0000 24.46875 32.625 NA NA FALSE NA NA NA
doi_10.25502_7v23-gp02 FB_DEMO_TZ_TL004_4 7 Tanzania Lushoto Kwemashai 38.328 -4.806 2014-11-22 2014 TRUE TRUE fym + pk common bean Lyamungo 90 550.0000 seed 950.0000 NA PKS 0.0000 15.66000 20.880 TRUE farmyard manure 2000 FALSE 50 20 1e+05
doi_10.25502_7v23-gp02 FB_DEMO_TZ_TL004_5 8 Tanzania Lushoto Kwemashai 38.328 -4.806 2014-11-22 2014 TRUE TRUE sympal common bean Lyamungo 90 680.0000 seed 480.0000 NA sympal 0.0000 46.00000 30.000 NA NA FALSE 50 20 1e+05
doi_10.25502_7v23-gp02 FB_DEMO_TZ_TL004_6 9 Tanzania Lushoto Kwemashai 38.328 -4.806 2014-11-22 2014 TRUE TRUE pk common bean Lyamungo 90 680.0000 seed 720.0000 NA PKS 0.0000 15.66000 20.880 NA NA FALSE 50 20 1e+05
doi_10.25502_7v23-gp02 FB_DEMO_TZ_TL004_1 10 Tanzania Lushoto Kwemashai 38.328 -4.806 2014-11-22 2014 TRUE TRUE control common bean Lyamungo 90 560.0000 seed 380.0000 NA none 0.0000 0.00000 0.000 NA NA FALSE 50 20 1e+05
doi_10.25502_7v23-gp02 FB_DEMO_TZ_TL004_2 11 Tanzania Lushoto Kwemashai 38.328 -4.806 2014-11-22 2014 TRUE TRUE fym common bean Lyamungo 90 510.0000 seed 450.0000 NA none 0.0000 0.00000 0.000 NA NA FALSE 50 20 1e+05
doi_10.25502_7v23-gp02 FB_DEMO_TZ_TL004_3 12 Tanzania Lushoto Kwemashai 38.328 -4.806 2014-11-22 2014 TRUE TRUE npk common bean Lyamungo 90 720.0000 seed 900.0000 NA NPK 25.0000 45.00000 60.000 NA NA FALSE 50 20 1e+05
doi_10.25502_7v23-gp02 FB_DEMO_TZ_TL001_1 13 Tanzania Lushoto Lushoto 38.439 -4.545 2014-11-24 2014 TRUE TRUE npk common bean Lyamungo 90 109.3750 seed 265.6250 NA NPK 39.0625 70.31250 93.750 NA NA FALSE 50 20 1e+05
doi_10.25502_7v23-gp02 FB_DEMO_TZ_TL001_2 14 Tanzania Lushoto Lushoto 38.439 -4.545 2014-11-24 2014 TRUE TRUE fym + pk common bean Lyamungo 90 140.6250 seed 218.7500 NA PKS 0.0000 24.46875 32.625 TRUE farmyard manure 3125 FALSE 50 20 1e+05
doi_10.25502_7v23-gp02 FB_DEMO_TZ_TL001_4 15 Tanzania Lushoto Lushoto 38.439 -4.545 2014-11-24 2014 TRUE TRUE sympal common bean Lyamungo 90 203.1250 seed 93.7500 NA sympal 0.0000 71.87500 46.875 NA NA FALSE 50 20 1e+05
doi_10.25502_7v23-gp02 FB_DEMO_TZ_TL001_5 16 Tanzania Lushoto Lushoto 38.439 -4.545 2014-11-24 2014 TRUE TRUE fym common bean Lyamungo 90 93.7500 seed 31.2500 NA none 0.0000 0.00000 0.000 NA NA FALSE 50 20 1e+05
doi_10.25502_7v23-gp02 FB_DEMO_TZ_TL001_6 17 Tanzania Lushoto Lushoto 38.439 -4.545 2014-11-24 2014 TRUE TRUE pk common bean Lyamungo 90 78.1250 seed 31.2500 NA PKS 0.0000 24.46875 32.625 NA NA FALSE 50 20 1e+05
doi_10.25502_7v23-gp02 FB_DEMO_TZ_TL003_1 18 Tanzania Lushoto Lushoto 38.439 -4.545 2014-12-01 2014 TRUE TRUE sympal common bean Lyamungo 90 1375.0000 seed 1445.3125 NA sympal 0.0000 71.87500 46.875 NA NA FALSE 50 20 1e+05
doi_10.25502_7v23-gp02 FB_DEMO_TZ_TL003_4 19 Tanzania Lushoto Lushoto 38.439 -4.545 2014-12-01 2014 TRUE TRUE pk common bean Lyamungo 90 1046.8750 seed 695.3125 NA PKS 0.0000 24.46875 32.625 NA NA FALSE 50 20 1e+05
doi_10.25502_7v23-gp02 FB_DEMO_TZ_TL003_5 20 Tanzania Lushoto Lushoto 38.439 -4.545 2014-12-01 2014 TRUE TRUE npk common bean Lyamungo 90 890.6250 seed 523.4375 NA NPK 39.0625 70.31250 93.750 NA NA FALSE 50 20 1e+05
doi_10.25502_7v23-gp02 FB_DEMO_TZ_TL003_6 21 Tanzania Lushoto Lushoto 38.439 -4.545 2014-12-01 2014 TRUE TRUE fym common bean Lyamungo 90 2015.6250 seed 679.6875 NA none 0.0000 0.00000 0.000 NA NA FALSE 50 20 1e+05
doi_10.25502_7v23-gp02 FB_DEMO_TZ_TL003_2 22 Tanzania Lushoto Lushoto 38.439 -4.545 2014-12-01 2014 TRUE TRUE control common bean Lyamungo 90 1164.0625 seed 898.4375 NA none 0.0000 0.00000 0.000 NA NA FALSE 50 20 1e+05
doi_10.25502_7v23-gp02 FB_DEMO_TZ_TL003_3 23 Tanzania Lushoto Lushoto 38.439 -4.545 2014-12-01 2014 TRUE TRUE pk+fym common bean Lyamungo 90 1867.1875 seed 1492.1875 NA PKS 0.0000 24.46875 32.625 TRUE farmyard manure 3125 FALSE 50 20 1e+05
doi_10.25502_7v23-gp02 FB_DEMO_TZ_TL006_4 24 Tanzania Lushoto Migambo 38.439 -4.545 2014-12-12 2014 TRUE TRUE pk + fym common bean Lyamungo 90 401.0000 seed 430.0000 NA PKS 0.0000 15.66000 20.880 TRUE farmyard manure 2000 FALSE 50 20 1e+05
doi_10.25502_7v23-gp02 FB_DEMO_TZ_TL006_1 25 Tanzania Lushoto Migambo 38.439 -4.545 2014-12-12 2014 TRUE TRUE fym common bean Lyamungo 90 520.0000 seed 430.0000 NA none 0.0000 0.00000 0.000 NA NA FALSE 50 20 1e+05


The observations are for 8 locations, for which we have 6 unique mapped locations.


The data are further summarized in the table below

Variable Stats / Values Freqs (% of Valid) Graph Missing
dataset_id [character] 1. doi_10.25502_7v23-gp
79(100.0%)
 0 (0.0%)
trial_id [character]
1. FB_DEMO_TZ_TL001_1
2. FB_DEMO_TZ_TL001_2
3. FB_DEMO_TZ_TL001_4
4. FB_DEMO_TZ_TL001_5
5. FB_DEMO_TZ_TL001_6
6. FB_DEMO_TZ_TL003_1
7. FB_DEMO_TZ_TL003_2
8. FB_DEMO_TZ_TL003_3
9. FB_DEMO_TZ_TL003_4
10. FB_DEMO_TZ_TL003_5
[ 69 others ]
1(1.3%)
1(1.3%)
1(1.3%)
1(1.3%)
1(1.3%)
1(1.3%)
1(1.3%)
1(1.3%)
1(1.3%)
1(1.3%)
69(87.3%)
 0 (0.0%)
record_id [integer]
Mean (sd) : 40 (22.9)
min ≤ med ≤ max:
1 ≤ 40 ≤ 79
IQR (CV) : 39 (0.6)
 79 distinct values (Integer sequence) 0 (0.0%)
country [character] 1. Tanzania
79(100.0%)
 0 (0.0%)
adm1 [character]
1. Lushoto
2. Moshi Rural
47(59.5%)
32(40.5%)
 0 (0.0%)
adm2 [character]
1. Dule m
2. Kwemashai
3. Lushoto
4. Marangu East
5. Migambo
6. Mwangoi
7. Mwika South
8. Shume
6(7.6%)
6(7.6%)
11(13.9%)
6(7.6%)
6(7.6%)
6(7.6%)
26(32.9%)
12(15.2%)
 0 (0.0%)
date [character]
1. 2014-11-13
2. 2014-11-14
3. 2014-11-15
4. 2014-11-22
5. 2014-11-24
6. 2014-11-27
7. 2014-12-01
8. 2014-12-02
9. 2014-12-10
10. 2014-12-12
11. 2014-12-14
12(15.2%)
6(7.6%)
6(7.6%)
6(7.6%)
5(6.3%)
2(2.5%)
12(15.2%)
6(7.6%)
6(7.6%)
12(15.2%)
6(7.6%)
 0 (0.0%)
planting_date [integer] 1 distinct value
2014:79(100.0%)
 0 (0.0%)
on_farm [logical] 1. TRUE
79(100.0%)
 0 (0.0%)
is_survey [logical] 1. TRUE
79(100.0%)
 0 (0.0%)
treatment [character]
1. sympal
2. npk
3. fym
4. control
5. pk
6. fym + pk
7. fym+pk
8. pk 
·
9. pk+fym
10. ctontrol
[ 2 others ]
14(17.7%)
13(16.5%)
12(15.2%)
11(13.9%)
11(13.9%)
6(7.6%)
5(6.3%)
2(2.5%)
2(2.5%)
1(1.3%)
2(2.5%)
 0 (0.0%)
crop [character] 1. common bean
79(100.0%)
 0 (0.0%)
variety [character] 1. Lyamungo 90
79(100.0%)
 0 (0.0%)
dmy_total [numeric]
Mean (sd) : 800.9 (438.3)
min ≤ med ≤ max:
78.1 ≤ 745.7 ≤ 2015.6
IQR (CV) : 526.2 (0.5)
 72 distinct values 0 (0.0%)
yield_part [character] 1. seed
79(100.0%)
 0 (0.0%)
yield [numeric]
Mean (sd) : 560.6 (456.1)
min ≤ med ≤ max:
31.2 ≤ 430 ≤ 2226.6
IQR (CV) : 492.6 (0.8)
 72 distinct values 0 (0.0%)
residue_yield [logical]
All NA's
 79 (100.0%)
fertilizer_type [character]
1. none
2. NPK
3. PKS
4. sympal
25(31.6%)
13(16.5%)
27(34.2%)
14(17.7%)
 0 (0.0%)
N_fertilizer [numeric]
Mean (sd) : 5 (11.6)
min ≤ med ≤ max:
0 ≤ 0 ≤ 43.4
IQR (CV) : 0 (2.3)
0.00  :66(83.5%)
25.00  :5(6.3%)
26.32 !:2(2.5%)
26.60 !:2(2.5%)
39.06 !:3(3.8%)
43.40 !:1(1.3%)
! rounded
 0 (0.0%)
P_fertilizer [numeric]
Mean (sd) : 24.2 (24)
min ≤ med ≤ max:
0 ≤ 16.5 ≤ 78.1
IQR (CV) : 46 (1)
 18 distinct values 0 (0.0%)
K_fertilizer [numeric]
Mean (sd) : 26.1 (25.9)
min ≤ med ≤ max:
0 ≤ 22 ≤ 104.2
IQR (CV) : 32.6 (1)
 18 distinct values 0 (0.0%)
OM_used [logical] 1. TRUE
14(100.0%)
 65 (82.3%)
OM_type [character]
1. (Empty string)
2. farmyard manure
65(82.3%)
14(17.7%)
 0 (0.0%)
OM_amount [numeric]
Mean (sd) : 2348.1 (547.5)
min ≤ med ≤ max:
2000 ≤ 2099.8 ≤ 3472.2
IQR (CV) : 377 (0.2)
 6 distinct values 67 (84.8%)
irrigated [logical] 1. FALSE
79(100.0%)
 0 (0.0%)
row_spacing [integer] 1 distinct value
50:71(100.0%)
 8 (10.1%)
plant_spacing [integer] 1 distinct value
20:71(100.0%)
 8 (10.1%)
plant_density [numeric] 1 distinct value
1e+05:71(100.0%)
 8 (10.1%)