Abstract
Climate change significantly affects crop production and is a threat to global food security. Conventional tillage (CT) is the primary tillage practice in rain-fed areas to conserve soil moisture. Despite previous research on the effect of tillage methods on different cropping systems, a comparison of tillage methods on soil water storage, crop yield and crop water use in wheat (Triticum aestivum ) and maize (Zea mays ) under different soil textures, precipitation and temperature patterns is needed. We reviewed 119 published articles and used meta-analysis to assess the effects of three conservation tillage practices (NT, no-tillage; RT, reduced tillage; ST, subsoil tillage), on precipitation storage efficiency (PSE), soil water storage at crop planting (SWSp), grain yield, evapotranspiration (ET) and water use efficiency (WUE) under varying precipitation and temperature patterns and soil textures in dryland wheat and maize, with CT as the control treatment. Conservation tillage methods increased PSE, SWSp, grain yield, ET and WUE in both winter wheat-fallow and spring maize cropping systems. More precipitation water was conserved in fine-textured soils than in medium-textured and coarse-textured soils, which improved ET. Conservation tillage increased soil water conservation and yield under high mean annual precipitation (MAP) and moderate mean annual temperature (MAT) conditions in winter wheat. However, soil water conservation and yield were greater under MAP <400mm and moderate MAT. We conclude that conservation tillage could be promising for increasing precipitation storage, soil water conservation and crop yield in regions with medium to low MAPs and medium to high MATs.
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Claims 15
Claim · model-written summary
Conservation tillage increased PSE in winter wheat-fallow and spring maize systems.
- Taxon
- winter wheat
Triticum aestivume0 - Treatment
- Conservation tillage methodse0
- Outcome
- PSEe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Conservation tillage methods increased PSE, SWSp, grain yield, ET and WUE in both winter wheat-fallow and spring maize cropping systems.”
Claim · model-written summary
Conservation tillage increased SWSp in winter wheat-fallow and spring maize systems.
- Taxon
- winter wheatTriticum aestivume0
- Treatment
- Conservation tillage methodse0
- Outcome
- SWSpe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Conservation tillage methods increased PSE, SWSp, grain yield, ET and WUE in both winter wheat-fallow and spring maize cropping systems.”
Claim · model-written summary
Conservation tillage increased grain yield in winter wheat-fallow and spring maize systems.
- Taxon
- winter wheatTriticum aestivume0
- Treatment
- Conservation tillage methodse0
- Outcome
- grain yielde0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Conservation tillage methods increased PSE, SWSp, grain yield, ET and WUE in both winter wheat-fallow and spring maize cropping systems.”
Claim · model-written summary
Conservation tillage increased ET in winter wheat-fallow and spring maize systems.
- Taxon
- winter wheatTriticum aestivume0
- Treatment
- Conservation tillage methodse0
- Outcome
- ETe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Conservation tillage methods increased PSE, SWSp, grain yield, ET and WUE in both winter wheat-fallow and spring maize cropping systems.”
Claim · model-written summary
Conservation tillage increased WUE in winter wheat-fallow and spring maize systems.
- Taxon
- winter wheatTriticum aestivume0
- Treatment
- Conservation tillage methodse0
- Outcome
- WUEe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Conservation tillage methods increased PSE, SWSp, grain yield, ET and WUE in both winter wheat-fallow and spring maize cropping systems.”
Claim · model-written summary
Conservation tillage increased PSE in winter wheat-fallow and spring maize systems.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Conservation tillage methods increased PSE, SWSp, grain yield, ET and WUE in both winter wheat-fallow and spring maize cropping systems.”
Claim · model-written summary
Conservation tillage increased SWSp in winter wheat-fallow and spring maize systems.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Conservation tillage methods increased PSE, SWSp, grain yield, ET and WUE in both winter wheat-fallow and spring maize cropping systems.”
Claim · model-written summary
Conservation tillage increased grain yield in winter wheat-fallow and spring maize systems.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Conservation tillage methods increased PSE, SWSp, grain yield, ET and WUE in both winter wheat-fallow and spring maize cropping systems.”
Claim · model-written summary
Conservation tillage increased ET in winter wheat-fallow and spring maize systems.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Conservation tillage methods increased PSE, SWSp, grain yield, ET and WUE in both winter wheat-fallow and spring maize cropping systems.”
Claim · model-written summary
Conservation tillage increased WUE in winter wheat-fallow and spring maize systems.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Conservation tillage methods increased PSE, SWSp, grain yield, ET and WUE in both winter wheat-fallow and spring maize cropping systems.”
Claim · model-written summary
Fine-textured soils conserved more precipitation water than medium- and coarse-textured soils.
- Taxon
- wheat (Triticum aestivum) and maize (Zea mays)Triticum aestivum
Zea mayst0 - Outcome
- precipitation watere0
- Direction
- Moree0
- Comparator
- medium-textured and coarse-textured soilse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“More precipitation water was conserved in fine-textured soils than in medium-textured and coarse-textured soils, which improved ET.”
t0“wheat (Triticum aestivum) and maize (Zea mays)”
Claim · model-written summary
Fine-textured soil water conservation improved evapotranspiration.
- Taxon
- wheat (Triticum aestivum) and maize (Zea mays)Triticum aestivumZea mayst0
- Outcome
- ETe0
- Direction
- improvede0
- Setting
- fine-textured soilse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“More precipitation water was conserved in fine-textured soils than in medium-textured and coarse-textured soils, which improved ET.”
t0“wheat (Triticum aestivum) and maize (Zea mays)”
Claim · model-written summary
Conservation tillage increased soil water conservation and yield under high precipitation and moderate temperature in winter wheat.
- Taxon
- winter wheatTriticum aestivume0
- Treatment
- Conservation tillagee0
- Outcome
- soil water conservation and yielde0
- Direction
- increasede0
- Qualifier
- high mean annual precipitation (MAP) and moderate mean annual temperature (MAT) conditionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Conservation tillage increased soil water conservation and yield under high mean annual precipitation (MAP) and moderate mean annual temperature (MAT) conditions in winter wheat.”
Claim · model-written summary
Soil water conservation and yield were greater under low precipitation and moderate temperature.
- Taxon
- wheat (Triticum aestivum) and maize (Zea mays)Triticum aestivumZea mayst0
- Outcome
- soil water conservation and yielde0
- Direction
- greatere0
- Qualifier
- MAP <400mm and moderate MATe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soil water conservation and yield were greater under MAP <400mm and moderate MAT.”
t0“wheat (Triticum aestivum) and maize (Zea mays)”
Claim · model-written summary
Conservation tillage is promising for precipitation storage, soil water conservation and yield in regions with medium to low precipitation and medium to high temperature.
- Taxon
- wheat (Triticum aestivum) and maize (Zea mays)Triticum aestivumZea mayst0
- Outcome
- conservation tillage could be promising for increasing precipitation storage, soil water conservation and crop yielde0
- Qualifier
- medium to low MAPs and medium to high MATse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“conservation tillage could be promising for increasing precipitation storage, soil water conservation and crop yield in regions with medium to low MAPs and medium to high MATs.”
t0“wheat (Triticum aestivum) and maize (Zea mays)”
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