This report describes the the Carob “varieties_cowpea” group.

This dataset combines 76 standardized individual data sources. It has has 23193 records and 21 variables for cowpea in 24 countries (Bangladesh, Benin, Botswana, Burundi, Cabo Verde, Cameroon, Colombia, Costa Rica, Côte d’Ivoire, Cyprus, Democratic Republic of the Congo, Eswatini, Ghana, Guinea, Mexico, Namibia, Niger, Nigeria, Sierra Leone, Tanzania, Thailand, Togo, Zambia, Zimbabwe).


These are the first 25 records:

records
dataset_id trial_id record_id country location longitude latitude geo_from_source planting_date harvest_date on_farm is_survey rep crop variety yield_part yield N_fertilizer P_fertilizer K_fertilizer irrigated
doi_10.25502_20180817_1124_BO AD1295GUMEL 1 Nigeria Gummel 9.38396 12.62261 TRUE 1992-05-15 1995-09-30 FALSE FALSE 1 cowpea IT92KD-404-1 seed 31.25 NA NA NA NA
doi_10.25502_20180817_1124_BO AD1295GUMEL 2 Nigeria Gummel 9.38396 12.62261 TRUE 1992-05-15 1995-09-30 FALSE FALSE 1 cowpea IT89KD-391 seed 62.5 NA NA NA NA
doi_10.25502_20180817_1124_BO AD1295GUMEL 3 Nigeria Gummel 9.38396 12.62261 TRUE 1992-05-15 1995-09-30 FALSE FALSE 1 cowpea IT92KD-372-1-2 seed 250 NA NA NA NA
doi_10.25502_20180817_1124_BO AD1295GUMEL 4 Nigeria Gummel 9.38396 12.62261 TRUE 1992-05-15 1995-09-30 FALSE FALSE 1 cowpea IT88DM-363 seed 390.63 NA NA NA NA
doi_10.25502_20180817_1124_BO AD1295GUMEL 5 Nigeria Gummel 9.38396 12.62261 TRUE 1992-05-15 1995-09-30 FALSE FALSE 1 cowpea IT88D-365 seed 406.25 NA NA NA NA
doi_10.25502_20180817_1124_BO AD1295GUMEL 6 Nigeria Gummel 9.38396 12.62261 TRUE 1992-05-15 1995-09-30 FALSE FALSE 1 cowpea IT90K-277-2 seed 109.38 NA NA NA NA
doi_10.25502_20180817_1124_BO AD1295GUMEL 7 Nigeria Gummel 9.38396 12.62261 TRUE 1992-05-15 1995-09-30 FALSE FALSE 1 cowpea IT94K-2332-5 seed 31.25 NA NA NA NA
doi_10.25502_20180817_1124_BO AD1295GUMEL 8 Nigeria Gummel 9.38396 12.62261 TRUE 1992-05-15 1995-09-30 FALSE FALSE 1 cowpea IT89KD-374 seed 250 NA NA NA NA
doi_10.25502_20180817_1124_BO AD1295GUMEL 9 Nigeria Gummel 9.38396 12.62261 TRUE 1992-05-15 1995-09-30 FALSE FALSE 1 cowpea DANILA seed 62.5 NA NA NA NA
doi_10.25502_20180817_1124_BO AD1295GUMEL 10 Nigeria Gummel 9.38396 12.62261 TRUE 1992-05-15 1995-09-30 FALSE FALSE 1 cowpea IT90K-109 seed 187.5 NA NA NA NA
doi_10.25502_20180817_1124_BO AD1295GUMEL 11 Nigeria Gummel 9.38396 12.62261 TRUE 1992-05-15 1995-09-30 FALSE FALSE 2 cowpea IT88DM-363 seed 62.5 NA NA NA NA
doi_10.25502_20180817_1124_BO AD1295GUMEL 12 Nigeria Gummel 9.38396 12.62261 TRUE 1992-05-15 1995-09-30 FALSE FALSE 2 cowpea IT90K-109 seed 93.75 NA NA NA NA
doi_10.25502_20180817_1124_BO AD1295GUMEL 13 Nigeria Gummel 9.38396 12.62261 TRUE 1992-05-15 1995-09-30 FALSE FALSE 2 cowpea IT92KD-404-1 seed 31.25 NA NA NA NA
doi_10.25502_20180817_1124_BO AD1295GUMEL 14 Nigeria Gummel 9.38396 12.62261 TRUE 1992-05-15 1995-09-30 FALSE FALSE 2 cowpea IT89KD-391 seed 156.25 NA NA NA NA
doi_10.25502_20180817_1124_BO AD1295GUMEL 15 Nigeria Gummel 9.38396 12.62261 TRUE 1992-05-15 1995-09-30 FALSE FALSE 2 cowpea IT92KD-372-1-2 seed 62.5 NA NA NA NA
doi_10.25502_20180817_1124_BO AD1295GUMEL 16 Nigeria Gummel 9.38396 12.62261 TRUE 1992-05-15 1995-09-30 FALSE FALSE 2 cowpea IT88D-365 seed 93.75 NA NA NA NA
doi_10.25502_20180817_1124_BO AD1295GUMEL 17 Nigeria Gummel 9.38396 12.62261 TRUE 1992-05-15 1995-09-30 FALSE FALSE 2 cowpea IT94K-2332-5 seed 93.75 NA NA NA NA
doi_10.25502_20180817_1124_BO AD1295GUMEL 18 Nigeria Gummel 9.38396 12.62261 TRUE 1992-05-15 1995-09-30 FALSE FALSE 2 cowpea IT89KD-374 seed 156.25 NA NA NA NA
doi_10.25502_20180817_1124_BO AD1295GUMEL 19 Nigeria Gummel 9.38396 12.62261 TRUE 1992-05-15 1995-09-30 FALSE FALSE 2 cowpea DANILA seed 93.75 NA NA NA NA
doi_10.25502_20180817_1124_BO AD1295GUMEL 20 Nigeria Gummel 9.38396 12.62261 TRUE 1992-05-15 1995-09-30 FALSE FALSE 2 cowpea IT90K-277-2 seed 31.25 NA NA NA NA
doi_10.25502_20180817_1124_BO AD1295GUMEL 21 Nigeria Gummel 9.38396 12.62261 TRUE 1992-05-15 1995-09-30 FALSE FALSE 3 cowpea IT89KD-374 seed 187.5 NA NA NA NA
doi_10.25502_20180817_1124_BO AD1295GUMEL 22 Nigeria Gummel 9.38396 12.62261 TRUE 1992-05-15 1995-09-30 FALSE FALSE 3 cowpea DANILA seed 125 NA NA NA NA
doi_10.25502_20180817_1124_BO AD1295GUMEL 23 Nigeria Gummel 9.38396 12.62261 TRUE 1992-05-15 1995-09-30 FALSE FALSE 3 cowpea IT90K-277-2 seed 93.75 NA NA NA NA
doi_10.25502_20180817_1124_BO AD1295GUMEL 24 Nigeria Gummel 9.38396 12.62261 TRUE 1992-05-15 1995-09-30 FALSE FALSE 3 cowpea IT94K-2332-5 seed 62.5 NA NA NA NA
doi_10.25502_20180817_1124_BO AD1295GUMEL 25 Nigeria Gummel 9.38396 12.62261 TRUE 1992-05-15 1995-09-30 FALSE FALSE 3 cowpea IT89KD-391 seed 125 NA NA NA NA


We have 23193 observations, for which we have 76 unique mapped locations.


The data are further summarized in the table below

Variable Stats / Values Freqs (% of Valid) Graph Missing
country [character]
1. Nigeria
2. Niger
3. Cameroon
4. Colombia
5. Ghana
6. Tanzania
7. Benin
8. Togo
9. Sierra Leone
10. Namibia
[ 14 others ]
18187(78.4%)
766(3.3%)
636(2.7%)
516(2.2%)
488(2.1%)
375(1.6%)
312(1.3%)
304(1.3%)
208(0.9%)
200(0.9%)
1201(5.2%)
 0 (0.0%)
location [character]
1. Kano
2. Gummel
3. IITA Ibadan
4. Samaru
5. Mokwa
6. Maiduguri
7. Minjibir
8. Ibadan
9. Bauchi
10. Badeggi
[ 60 others ]
4574(19.7%)
2412(10.4%)
1744(7.5%)
1640(7.1%)
1238(5.3%)
1004(4.3%)
954(4.1%)
552(2.4%)
467(2.0%)
448(1.9%)
8160(35.2%)
 0 (0.0%)
geo_from_source [logical] 1. TRUE
23193(100.0%)
 0 (0.0%)
planting_date [IDate, Date]
min : 1987-03-06
med : 1990-02-10
max : 1998-04-24
range : 11y 1m 18d
 57 distinct values 0 (0.0%)
harvest_date [IDate, Date]
min : 1987-08-15
med : 1991-06-09
max : 1996-12-12
range : 9y 3m 27d
 59 distinct values 0 (0.0%)
on_farm [logical] 1. FALSE
23193(100.0%)
 0 (0.0%)
is_survey [logical] 1. FALSE
23193(100.0%)
 0 (0.0%)
rep [integer]
Mean (sd) : 4.1 (23.4)
min ≤ med ≤ max:
-4 ≤ 2 ≤ 401
IQR (CV) : 2 (5.7)
 12 distinct values 436 (1.9%)
crop [character] 1. cowpea
23193(100.0%)
 0 (0.0%)
variety [character]
1. LOCALCHECK
2. IT86D-719
3. IT84S-2246-4
4. IAR-48
5. IT89KD-245
6. IT89KD-260
7. IT89KD-391
8. IT86D-1010
9. IT87D-611-3
10. IT87D-885
[ 983 others ]
629(2.7%)
419(1.8%)
324(1.4%)
279(1.2%)
228(1.0%)
220(0.9%)
212(0.9%)
210(0.9%)
203(0.9%)
200(0.9%)
20269(87.4%)
 0 (0.0%)
yield_part [character] 1. seed
23193(100.0%)
 0 (0.0%)
yield [character]
1. (Empty string)
2. 0
3. 750
4. 500
5. 334
6. 1000
7. 167
8. 501
9. 835
10. 1250
[ 10256 others ]
1358(5.9%)
480(2.1%)
102(0.4%)
100(0.4%)
97(0.4%)
92(0.4%)
89(0.4%)
88(0.4%)
85(0.4%)
76(0.3%)
20626(88.9%)
 0 (0.0%)
N_fertilizer [logical]
All NA's
 23193 (100.0%)
P_fertilizer [logical]
All NA's
 23193 (100.0%)
K_fertilizer [logical]
All NA's
 23193 (100.0%)
irrigated [logical]
All NA's
 23193 (100.0%)