Abstract
Extreme precipitations that promote flooding , salinity , and soils with low drainage and aeration are challenges that affect food production in the Southwest of Bangladesh. After rice cultivation, most lands are kept fallow, emphasizing the urgency of research on techniques that allow crop diversification to guarantee food security. In this study, 2 years-trials on farmers' plots were established in 3 locations of Khulna district-Bangladesh to test potato cultivation under zero tillage with rice straw mulching (ZT) in comparison to conventional cultivation (CT) after rice. A soil quality index (SQI) using the partial least squares method was run considering key soil indicators related to crop production. ZT allowed a higher tuber yield and a lower C footprint than CT . Although neither method significantly affected soil organic carbon stock, there was a significant increment from season 1 to 2 (29.0 ± 11.3 and 45.8 ± 9.4 Mg ha −1 , respectively). ZT allowed potato cultivation 15–25 days earlier than CT. Although crop modeling did not show a significant increase in potential tuber yield when simulating the earlier planting of ZT, this advantage will be crucial in the future, considering that high-intensity rainfall events are increasing, flooding the fields and preventing crop cultivation. Alkalinity, carbonates, and anaerobic soil conditions drove the SQI, influencing the elements kept in the past rice cultivation with a concomitant effect in tuber yield. ZT is a promising technology that allows crop diversification based on soil sustainability and labor reduction in challenging agroecologies like Southwest Bangladesh. Socioeconomic studies into adoption and scaling approaches are necessary for a proper technological transfer.
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Claims 8
Claim · model-written summary
Zero tillage with rice straw mulching increased potato tuber yield versus conventional cultivation.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ZT allowed a higher tuber yield and a lower C footprint than CT”
t0“Potato”
Claim · model-written summary
Zero tillage with rice straw mulching reduced carbon footprint versus conventional cultivation.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ZT allowed a higher tuber yield and a lower C footprint than CT”
t0“Potato”
Claim · model-written summary
Neither cultivation method significantly affected soil organic carbon stock.
- Taxon
- potato
Solanum tuberosumt0 - Treatment
- neither methode0
- Outcome
- soil organic carbon stocke0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“neither method significantly affected soil organic carbon stock”
t0“Potato”
Claim · model-written summary
Soil organic carbon stock increased significantly between seasons 1 and 2.
- Taxon
- potatoSolanum tuberosumt0
- Outcome
- significant incremente0
- Direction
- incremente0
- Value
- 29.0 ± 11.3 and 45.8 ± 9.4 Mg ha −1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there was a significant increment from season 1 to 2 (29.0 ± 11.3 and 45.8 ± 9.4 Mg ha −1 , respectively)”
t0“Potato”
Claim · model-written summary
Zero tillage enabled potato cultivation 15–25 days earlier than conventional cultivation.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- ZTe0
- Outcome
- potato cultivatione0
- Direction
- earliere0
- Value
- 15–25 dayse0
- Comparator
- CTe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ZT allowed potato cultivation 15–25 days earlier than CT.”
Claim · model-written summary
Simulated earlier planting under zero tillage did not significantly increase potential tuber yield.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- earlier planting of ZTe0
- Outcome
- potential tuber yielde0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“crop modeling did not show a significant increase in potential tuber yield when simulating the earlier planting of ZT”
t0“Potato”
Claim · model-written summary
Alkalinity, carbonates, and anaerobic soil conditions drove the soil quality index and affected tuber yield.
- Taxon
- potatoSolanum tuberosumt0
- Outcome
- tuber yielde0
- Setting
- soil conditionse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Alkalinity, carbonates, and anaerobic soil conditions drove the SQI, influencing the elements kept in the past rice cultivation with a concomitant effect in tuber yield.”
t0“Potato”
Claim · model-written summary
The authors identify zero tillage with mulch as promising for crop diversification, soil sustainability, and labor reduction.
- Taxon
- potatoSolanum tuberosumt0
- Outcome
- crop diversificatione0
- Setting
- Southwest Bangladeshe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ZT is a promising technology that allows crop diversification based on soil sustainability and labor reduction in challenging agroecologies like Southwest Bangladesh.”
t0“Potato”
The same questions in other papers
tillage · yield · Solanum tuberosum (potato)Results differ
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- negative
- negative
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2 papers in the same direction as this paper · 2 in the opposite direction
- negative
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See all 5 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.