This report describes standardized data for “Pigeonpea Ratooning Trial Under Conservation Agriculture, 2020”. These data were standardized on 2024-02-29 by Shumirai Manzvera with this R script. The original data have a CC-BY-4.0 license. Here you can download the standardized data.

This is the full citation of the data set:

International Maize and Wheat Improvement Center (CIMMYT); Zambian Agriculture Research Institute (ZARI) (2021). Pigeonpea Ratooning Trial Under Conservation Agriculture, 2020. Harvard Dataverse. Version 1.0. doi:10.7910/DVN/EQZR5C

The dataset has 64 records and 25 variables for 2 crops (maize, pigeon pea) in Zambia. The dataset has 2 treatment(s): crop_rotation, intercrops.


These are the first 25 records:

records
trial_id planting_date on_farm is_survey treatment rep crop intercrops crop_rotation dmy_residue yield_part yield fertilizer_type N_fertilizer P_fertilizer K_fertilizer irrigated country adm2 location longitude latitude geo_from_source
Msekera2020 2020 TRUE FALSE Sole maize 1 maize 3368 grain 2393 D-compound;urea 56 8.74 8.3 FALSE Zambia Chipata Msekera 32.6447 -13.64451 FALSE
Msekera2020 2020 TRUE FALSE Mz/PP uproot and reseed 1 maize pigeon pea 2361 grain 2011 D-compound;urea 56 8.74 8.3 FALSE Zambia Chipata Msekera 32.6447 -13.64451 FALSE
Msekera2020 2020 TRUE FALSE Mz/Pp full growth and harvest, no ratooning, no reseeding 1 maize pigeon pea 2237 grain 1698 D-compound;urea 56 8.74 8.3 FALSE Zambia Chipata Msekera 32.6447 -13.64451 FALSE
Msekera2020 2020 TRUE FALSE Maize-Pp rotation 1 maize maize 2755 grain 2877 D-compound;urea 56 8.74 8.3 FALSE Zambia Chipata Msekera 32.6447 -13.64451 FALSE
Msekera2020 2020 TRUE FALSE MZ/PP cut and reseed PP 2 weeks after Mz seeding 1 maize pigeon pea 2385 grain 2226 D-compound;urea 56 8.74 8.3 FALSE Zambia Chipata Msekera 32.6447 -13.64451 FALSE
Msekera2020 2020 TRUE FALSE Mz/Pp ratoon at harvest/seeding 1 maize pigeon pea 2674 grain 1804 D-compound;urea 56 8.74 8.3 FALSE Zambia Chipata Msekera 32.6447 -13.64451 FALSE
Msekera2020 2020 TRUE FALSE Mz/PP delay maize seeding by 2w then cut and reseed PP 1 maize pigeon pea 2408 grain 2080 D-compound;urea 56 8.74 8.3 FALSE Zambia Chipata Msekera 32.6447 -13.64451 FALSE
Msekera2020 2020 TRUE FALSE MZ/PP ratoon at harvest/2w after Mz seeding 1 maize pigeon pea 1977 grain 2297 D-compound;urea 56 8.74 8.3 FALSE Zambia Chipata Msekera 32.6447 -13.64451 FALSE
Msekera2020 2020 TRUE FALSE MZ/PP ratoon at harvest/3w after Mz seeding 1 maize pigeon pea 2234 grain 1936 D-compound;urea 56 8.74 8.3 FALSE Zambia Chipata Msekera 32.6447 -13.64451 FALSE
Msekera2020 2020 TRUE FALSE MZ/PP cut and reseed PP 2 weeks after Mz seeding 2 maize pigeon pea 2964 grain 2515 D-compound;urea 56 8.74 8.3 FALSE Zambia Chipata Msekera 32.6447 -13.64451 FALSE
Msekera2020 2020 TRUE FALSE Maize-Pp rotation 2 maize maize 3614 grain 3402 D-compound;urea 56 8.74 8.3 FALSE Zambia Chipata Msekera 32.6447 -13.64451 FALSE
Msekera2020 2020 TRUE FALSE Mz/PP uproot and reseed 2 maize pigeon pea 1993 grain 1996 D-compound;urea 56 8.74 8.3 FALSE Zambia Chipata Msekera 32.6447 -13.64451 FALSE
Msekera2020 2020 TRUE FALSE Sole maize 2 maize 2900 grain 2677 D-compound;urea 56 8.74 8.3 FALSE Zambia Chipata Msekera 32.6447 -13.64451 FALSE
Msekera2020 2020 TRUE FALSE Mz/Pp full growth and harvest, no ratooning, no reseeding 2 maize pigeon pea 2111 grain 2098 D-compound;urea 56 8.74 8.3 FALSE Zambia Chipata Msekera 32.6447 -13.64451 FALSE
Msekera2020 2020 TRUE FALSE Mz/Pp ratoon at harvest/seeding 2 maize pigeon pea 1823 grain 1759 D-compound;urea 56 8.74 8.3 FALSE Zambia Chipata Msekera 32.6447 -13.64451 FALSE
Msekera2020 2020 TRUE FALSE MZ/PP ratoon at harvest/3w after Mz seeding 2 maize pigeon pea 2427 grain 1967 D-compound;urea 56 8.74 8.3 FALSE Zambia Chipata Msekera 32.6447 -13.64451 FALSE
Msekera2020 2020 TRUE FALSE MZ/PP ratoon at harvest/2w after Mz seeding 2 maize pigeon pea 2146 grain 2115 D-compound;urea 56 8.74 8.3 FALSE Zambia Chipata Msekera 32.6447 -13.64451 FALSE
Msekera2020 2020 TRUE FALSE Mz/PP delay maize seeding by 2w then cut and reseed PP 2 maize pigeon pea 2397 grain 1763 D-compound;urea 56 8.74 8.3 FALSE Zambia Chipata Msekera 32.6447 -13.64451 FALSE
Msekera2020 2020 TRUE FALSE Maize-Pp rotation 3 maize maize 3140 grain 3271 D-compound;urea 56 8.74 8.3 FALSE Zambia Chipata Msekera 32.6447 -13.64451 FALSE
Msekera2020 2020 TRUE FALSE MZ/PP cut and reseed PP 2 weeks after Mz seeding 3 maize pigeon pea 2527 grain 1916 D-compound;urea 56 8.74 8.3 FALSE Zambia Chipata Msekera 32.6447 -13.64451 FALSE
Msekera2020 2020 TRUE FALSE Mz/PP uproot and reseed 3 maize pigeon pea 1690 grain 1491 D-compound;urea 56 8.74 8.3 FALSE Zambia Chipata Msekera 32.6447 -13.64451 FALSE
Msekera2020 2020 TRUE FALSE Mz/PP delay maize seeding by 2w then cut and reseed PP 3 maize pigeon pea 1745 grain 1650 D-compound;urea 56 8.74 8.3 FALSE Zambia Chipata Msekera 32.6447 -13.64451 FALSE
Msekera2020 2020 TRUE FALSE MZ/PP ratoon at harvest/2w after Mz seeding 3 maize pigeon pea 2246 grain 1941 D-compound;urea 56 8.74 8.3 FALSE Zambia Chipata Msekera 32.6447 -13.64451 FALSE
Msekera2020 2020 TRUE FALSE Mz/Pp full growth and harvest, no ratooning, no reseeding 3 maize pigeon pea 1979 grain 1552 D-compound;urea 56 8.74 8.3 FALSE Zambia Chipata Msekera 32.6447 -13.64451 FALSE
Msekera2020 2020 TRUE FALSE MZ/PP ratoon at harvest/3w after Mz seeding 3 maize pigeon pea 2533 grain 2640 D-compound;urea 56 8.74 8.3 FALSE Zambia Chipata Msekera 32.6447 -13.64451 FALSE


The observations were made at 1 locations. We have coordinates for 1 of these locations.


The standardization script does not emit non-compliance warnings.

The overall quality of the dataset, given the completeness of required variables was 6.9 on a scale of 10. See the table below

variable completeness (%)
planting_date 100
harvest_date 0
crop 100
variety 0
N_fertilizer 100
P_fertilizer 100
K_fertilizer 100
irrigated 100
latitude 0
longitude 0
location 100
adm 100
yield 100


The data are further summarized in the table below.

Variable Stats / Values Freqs (% of Valid) Graph Missing
trial_id [character] 1. Msekera2020
64(100.0%)
 0 (0.0%)
planting_date [integer] 1 distinct value
2020:64(100.0%)
 0 (0.0%)
on_farm [logical] 1. TRUE
64(100.0%)
 0 (0.0%)
is_survey [logical] 1. FALSE
64(100.0%)
 0 (0.0%)
treatment [character]
1. Maize-Pp rotation
2. MZ/PP cut and reseed
3. Mz/PP delay maize se
4. Mz/Pp full growth an
5. MZ/PP ratoon at har
6. MZ/PP ratoon at har
7. Mz/Pp ratoon at har
8. Mz/PP uproot and res
9. Sole maize
4(6.2%)
8(12.5%)
8(12.5%)
8(12.5%)
8(12.5%)
8(12.5%)
8(12.5%)
8(12.5%)
4(6.2%)
 0 (0.0%)
rep [integer]
Mean (sd) : 2.5 (1.1)
min ≤ med ≤ max:
1 ≤ 2.5 ≤ 4
IQR (CV) : 1.5 (0.5)
1:16(25.0%)
2:16(25.0%)
3:16(25.0%)
4:16(25.0%)
 0 (0.0%)
crop [character]
1. maize
2. pigeon pea
36(56.2%)
28(43.8%)
 0 (0.0%)
intercrops [character]
1. (Empty string)
2. maize
3. pigeon pea
8(12.5%)
28(43.8%)
28(43.8%)
 0 (0.0%)
crop_rotation [character]
1. (Empty string)
2. maize
60(93.8%)
4(6.2%)
 0 (0.0%)
dmy_residue [integer]
Mean (sd) : 2834.8 (950.1)
min ≤ med ≤ max:
1690 ≤ 2550 ≤ 6593
IQR (CV) : 907 (0.3)
 52 distinct values 12 (18.8%)
yield_part [character] 1. grain
64(100.0%)
 0 (0.0%)
yield [integer]
Mean (sd) : 1532.1 (994.6)
min ≤ med ≤ max:
141 ≤ 1728.5 ≤ 4545
IQR (CV) : 1528.2 (0.6)
 64 distinct values 0 (0.0%)
fertilizer_type [character] 1. D-compound;urea
64(100.0%)
 0 (0.0%)
N_fertilizer [integer] 1 distinct value
56:64(100.0%)
 0 (0.0%)
P_fertilizer [numeric] 1 distinct value
8.74:64(100.0%)
 0 (0.0%)
K_fertilizer [numeric] 1 distinct value
8.30:64(100.0%)
 0 (0.0%)
irrigated [logical] 1. FALSE
64(100.0%)
 0 (0.0%)
country [character] 1. Zambia
64(100.0%)
 0 (0.0%)
adm2 [character] 1. Chipata
64(100.0%)
 0 (0.0%)
location [character] 1. Msekera
64(100.0%)
 0 (0.0%)
geo_from_source [logical] 1. FALSE
64(100.0%)
 0 (0.0%)