Conservation Agriculture Long-Term Trial at Msekera Research Station, Zambia (doi:10.7910/DVN/Z7M0AV)

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Part 1: Document Description
Part 2: Study Description
Part 3: Data Files Description
Part 4: Variable Description
Entire Codebook

Document Description

Citation

Title:

Conservation Agriculture Long-Term Trial at Msekera Research Station, Zambia

Identification Number:

doi:10.7910/DVN/Z7M0AV

Distributor:

Harvard Dataverse

Date of Distribution:

2021-02-02

Version:

1

Bibliographic Citation:

International Maize and Wheat Improvement Center (CIMMYT)); Zambian Agriculture Research Institute (ZARI), 2021, "Conservation Agriculture Long-Term Trial at Msekera Research Station, Zambia", https://doi.org/10.7910/DVN/Z7M0AV, Harvard Dataverse, V1, UNF:6:bJV9u4YCOZzC5c89r46c8A== [fileUNF]

Study Description

Citation

Title:

Conservation Agriculture Long-Term Trial at Msekera Research Station, Zambia

Identification Number:

doi:10.7910/DVN/Z7M0AV

Authoring Entity:

International Maize and Wheat Improvement Center (CIMMYT))

Zambian Agriculture Research Institute (ZARI)

Other identifications and acknowledgements:

Thierfelder, Christian (International Maize and Wheat Improvement Center (CIMMYT))

Other identifications and acknowledgements:

Mwila, Mulundu (Zambian Agriculture Research Institute (ZARI))

Other identifications and acknowledgements:

Zambian Agriculture Research Institute (ZARI)

Other identifications and acknowledgements:

International Maize and Wheat Improvement Center (CIMMYT)

Producer:

International Maize and Wheat Improvement Center (CIMMYT)

Date of Production:

2020-08-15

Distributor:

Harvard Dataverse

Distributor:

International Food Policy Research Institute (IFPRI)

Access Authority:

Thierfelder, Christian

Depositor:

IFPRI-KM

Date of Deposit:

2021-02-01

Date of Distribution:

2020

Series Name:

Experimental Data

Holdings Information:

https://doi.org/10.7910/DVN/Z7M0AV

Study Scope

Keywords:

Agricultural Sciences, Social Sciences, conservation agriculture, crop rotation, zero tillage, maize, cowpeas, soybeans, ZAMBIA, SOUTHERN AFRICA, AFRICA SOUTH OF SAHARA, AFRICA

Topic Classification:

Agricultural research, Climate-smart agriculture

Abstract:

The present data is from a long-term trial set at Msekera Research Station in Zambia to monitor and evaluate the long-term effects of conservation agriculture practices on soil quality, soil water dynamics, weeds, pests/diseases, and crop yield. This trial was conducted from 2012 to 2020. The ten treatments including control were:</p> <ol>T1: Control plot 1 (CPM1): traditional farmers practice mouldboard plough on the flat, maize as a sole crop, no residue retention, stubble incorporated into the row for the following season.</ol> <ol> T2: Control plot 2 (CPM2); ridge and furrow system dug by hand, maize as a sole crop, no residue retention, stubble incorporated into the row for the following season</ol> <ol> T3: Basins (BAM), residue retention on the surface, maize as a sole crop </ol><ol>T4: Dibble stick (DISM), residue retention on the surface, maize as a sole crop</ol><ol> T5: Direct seeder (DSM), residue retention on the surface, maize as a sole crop</ol><ol> T6: Direct seeding maize/cowpea intercropping (DS-M/C), 90cm rows, residue retention on the surface</ol><ol> T7: Direct seeding cowpea (Cowpea-maize rotation) (DS-MC), residue retention on the surface</ol><ol> T8:Direct seeding maize (Maize-cowpea rotation) (DS-CM), residue retention on the surface</ol> <ol>T9:Direct seeding soya (Soybean-maize rotation) (DS-MS), residue retention on the surface</ol><ol> T10: Direct seeding maize (Maize-soybean rotation) (DS-SM), residue retention on the surface</ol>

Time Period:

2012-01-12-2020-01-09

Date of Collection:

2012-01-12-2020-01-09

Country:

Zambia

Geographic Coverage:

Msekera Research Station

Geographic Unit(s):

Research station

Unit of Analysis:

kg/ha

Universe:

On-station trial

Kind of Data:

experimental data

Methodology and Processing

Sampling Procedure:

Yield data from a completely randomized control trial, 4 replications

Sources Statement

Data Access

Citation Requirement:

International Maize and Wheat Improvement Center (CIMMYT)); Zambian Agriculture Research Institute (ZARI). 2021. Conservation Agriculture Long-Term Trial at Msekera Research Station, Zambia. Washington, DC: International Food Policy Research Institute (IFPRI) [dataset]. <a href="https://doi.org/10.7910/DVN/Z7M0AV">https://doi.org/10.7910/DVN/Z7M0AV. Harvard Dataverse. Version 1.

Disclaimer:

<p>IFPRI adheres to the principle of unrestricted public access to its own final research outputs and will make such outputs freely available. The Institute encourages the use of the <b>Conservation Agriculture Long-Term Trial at Msekera Research Station, Zambia</b> dataset; for detailed information on its use, please refer to <a href="https://www.ifpri.org/intellectual-property-policy">IFPRI’s Intellectual Property Policy</a>. The data files in this dataset are unit record or ‘raw’ data files. Information that would allow survey respondents to be identified has been deleted from the files, but all other information remains. IFPRI’s decision not to alter the contents of the data files means that the user of these files will need to take care in handling missing observations, outliers, and violations of logical consistency. </p><p>The data are provided ‘as is’ and in no event shall IFPRI be liable for any damages resulting from the use of the data. While great effort was taken to obtain high-quality data, the accuracy or reliability of the data is not guaranteed or warranted in any way.</p>

Other Study Description Materials

File Description--f4363729

File: AR_ZAM_CIMMYT_Msekera_LT trial_2020.tab

  • Number of cases: 396

  • No. of variables per record: 16

  • Type of File: text/tab-separated-values

Notes:

UNF:6:QPazucND/0t7hwM8v+2yOQ==

File Description--f4363730

File: codebook_AR_ZAM_CIMMYT_Msekera_LT trial_2020.tab

  • Number of cases: 101

  • No. of variables per record: 9

  • Type of File: text/tab-separated-values

Notes:

UNF:6:eggKQOJtMBvfIjpF20SUfA==

Variable Description

List of Variables:

Variables

No

f4363729 Location:

Summary Statistics: Max. 396.0; Min. 1.0; Valid 396.0; Mean 198.5; StDev 114.45959985951374

Variable Format: numeric

Notes: UNF:6:5dIaYhRkWfpVw3iw1SONOA==

year

f4363729 Location:

Summary Statistics: Max. 2020.0; Mean 2016.0; StDev 2.585255171892606; Valid 396.0; Min. 2012.0;

Variable Format: numeric

Notes: UNF:6:N+t4OBF3VqGZDa5v9gGH2Q==

County

f4363729 Location:

Variable Format: character

Notes: UNF:6:P0m7iv5AQtQfwbzFffvWNA==

District

f4363729 Location:

Variable Format: character

Notes: UNF:6:5NeLYIHWhDXVX983sAhUww==

Location

f4363729 Location:

Variable Format: character

Notes: UNF:6:uDpFK/ldlphp+nMhRBTjaA==

Plot

f4363729 Location:

Summary Statistics: Max. 40.0; Mean 20.560606060606062; Valid 396.0; StDev 11.679425321234444; Min. 1.0

Variable Format: numeric

Notes: UNF:6:XXEtzI6RC80m2ieGQ7Y/tQ==

Treat

f4363729 Location:

Summary Statistics: Valid 396.0; Mean 5.565656565656564; Max. 10.0; Min. 1.0; StDev 2.7674843163508487;

Variable Format: numeric

Notes: UNF:6:JaTpD5X66VI6y02oU9IbiQ==

Treatdesc

f4363729 Location:

Variable Format: character

Notes: UNF:6:KMAxrE5p3V9i+yxTzxIJPw==

Crop

f4363729 Location:

Variable Format: character

Notes: UNF:6:tceh9PPsgb+q3bqbs/kyiQ==

Rep

f4363729 Location:

Summary Statistics: Max. 4.0; StDev 1.1194483270620512; Mean 2.5; Min. 1.0; Valid 396.0;

Variable Format: numeric

Notes: UNF:6:PRhETggCaXtuZlxMXEBzGw==

Growthstrategy

f4363729 Location:

Variable Format: character

Notes: UNF:6:OkLcmAHvd/8WhRgd2TQp2A==

Fertilizerrate

f4363729 Location:

Variable Format: character

Notes: UNF:6:TC3SqJEW87j36WWVtUJS5A==

Ferterlizertype

f4363729 Location:

Variable Format: character

Notes: UNF:6:MogFyOD95dBCgknCE4ASZg==

Final stand

f4363729 Location:

Variable Format: character

Notes: UNF:6:vNa9+UXLaBNBgvS/M4tt3A==

Biomass

f4363729 Location:

Variable Format: character

Notes: UNF:6:mQB1W5fErcSGDWOwQgp+Ig==

Grain

f4363729 Location:

Variable Format: character

Notes: UNF:6:cpMK65JrU5cWh9L/u7x4uw==

year

f4363730 Location:

Variable Format: character

Notes: UNF:6:qeIDwk0CiIuQ5CRJafCJFw==

Plot

f4363730 Location:

Variable Format: character

Notes: UNF:6:u6cgoTdidmRcXo1R+32uww==

Treat

f4363730 Location:

Variable Format: character

Notes: UNF:6:BuZfbX5Loiyzi7v8DhOLXg==

Treatdesc

f4363730 Location:

Variable Format: character

Notes: UNF:6:2Ke1hBZsTW6wMdz7D/GP9g==

Crop

f4363730 Location:

Summary Statistics: Min. NaN; Mean NaN; Max. NaN; StDev NaN; Valid 0.0

Variable Format: numeric

Notes: UNF:6:K1NCHP3PnX8R35PvIK/SSw==

growthstrategy

f4363730 Location:

Summary Statistics: StDev NaN; Max. NaN; Valid 0.0; Mean NaN; Min. NaN

Variable Format: numeric

Notes: UNF:6:K1NCHP3PnX8R35PvIK/SSw==

Final stand

f4363730 Location:

Summary Statistics: Max. NaN; StDev NaN; Mean NaN; Min. NaN; Valid 0.0

Variable Format: numeric

Notes: UNF:6:K1NCHP3PnX8R35PvIK/SSw==

Biomass

f4363730 Location:

Summary Statistics: StDev NaN; Min. NaN; Max. NaN; Mean NaN; Valid 0.0

Variable Format: numeric

Notes: UNF:6:K1NCHP3PnX8R35PvIK/SSw==

Grain

f4363730 Location:

Summary Statistics: StDev NaN; Mean NaN; Valid 0.0; Min. NaN; Max. NaN;

Variable Format: numeric

Notes: UNF:6:K1NCHP3PnX8R35PvIK/SSw==