Abstract
Abstract Yields of dryland crops in semiarid and arid zones are limited by precipitation, and so water content and placement are very important at each stage of development. Spring wheat ( Triticum aestivum L.) grown in a wheat‐fallow (WF) rotation system (1 crop in 2 years) generally occupies the greatest area in the Israeli dryland region, more than the continuous wheat (CW) rotation system. To identify the optimal crop management for dryland farming where annual precipitation is <250 mm, we compared the effects of no‐tillage (NT) and conventional tillage (CT) on wheat growth and water use efficiency (WUE) in both the WF and the CW rotation systems, and on water storage in fallow (F) plots. During the 4‐year period from 1994 to 1997, experiments were conducted at Gilat Experimental Station, located in the south of Israel (average annual precipitation, 237 mm; soil type, sandy loam loess‐Calcic Xerosol). In the fallow year, F‐NT increased water infiltration and soil water content in comparison with F‐CT. However, most of the water evaporated during the summer, especially from the upper soil layer (0–120 cm). During growth, uncultivated soil with straw mulch increased water content in the upper soil layer and also encouraged the development of a longer root system capable of utilizing deeper water. During 1995, similar grain yields were obtained with both NT and CT treatments, an average of 3.45 t ha −1 for WF and 2.9 t ha −1 for CW. In the last 2 drought years (1996 and 1997), NT management increased yields by 62 to 67% for WF and by 18 to 75% for CW, relative to CT management. During the 2 years when water deficiency occurred during the grain‐filling stage (1994 and 1997), NT management increased grain weight by 20% and test weight by 5 to 7%, in addition to the 70 to 200% increase in the total grain yield, relative to CT management. Crop yield and WUE can be increased in arid zones with annual precipitation of <200 mm, through use of a wheat‐fallow rotation system that is managed by NT.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 8
Claim · model-written summary
No-tillage increased water infiltration and soil water content in fallow compared with conventional tillage.
- Taxon
- Wheat
Triticum aestivumt0 - Organ / stage
- fallowe0
- Treatment
- F‐NTe0
- Outcome
- water infiltration and soil water contente0
- Direction
- increasede0
- Comparator
- F‐CTe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the fallow year, F‐NT increased water infiltration and soil water content in comparison with F‐CT”
t0“Wheat”
Claim · model-written summary
In 1995 no-tillage and conventional tillage gave similar wheat grain yields.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- NTe1
- Outcome
- grain yieldse1
- Direction
- similare1
- Value
- 3.45 t ha −1e1
- Comparator
- CTe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“During 1995, similar grain yields were obtained with both NT and CT treatments, an average of 3.45 t ha −1 for WF and 2.9 t ha −1 for CW”
t0“Wheat”
Claim · model-written summary
No-tillage increased wheat yield by 62 to 67% in the wheat-fallow system in the 1996 and 1997 drought years.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- NT managemente2
- Outcome
- yieldse2
- Direction
- increasede2
- Value
- 62 to 67%e2
- Qualifier
- In the last 2 drought years (1996 and 1997)e2
- Comparator
- CT managemente2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“In the last 2 drought years (1996 and 1997), NT management increased yields by 62 to 67% for WF and by 18 to 75% for CW, relative to CT management”
t0“Wheat”
Claim · model-written summary
No-tillage increased wheat yield by 18 to 75% in the continuous wheat system in the 1996 and 1997 drought years.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- NT managemente2
- Outcome
- yieldse2
- Direction
- increasede2
- Value
- 18 to 75%e2
- Qualifier
- In the last 2 drought years (1996 and 1997)e2
- Comparator
- CT managemente2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“In the last 2 drought years (1996 and 1997), NT management increased yields by 62 to 67% for WF and by 18 to 75% for CW, relative to CT management”
t0“Wheat”
Claim · model-written summary
No-tillage increased grain weight by 20% in years with water deficiency during grain filling.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- NT managemente3
- Outcome
- grain weighte3
- Direction
- increasede3
- Value
- 20%e3
- Comparator
- CTe3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“NT management increased grain weight by 20% and test weight by 5 to 7%, in addition to the 70 to 200% increase in the total grain yield, relative to CT management”
t0“Wheat”
Claim · model-written summary
No-tillage increased wheat test weight by 5 to 7%.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- NT managemente3
- Outcome
- test weighte3
- Direction
- increasede3
- Value
- 5 to 7%e3
- Comparator
- CTe3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“NT management increased grain weight by 20% and test weight by 5 to 7%, in addition to the 70 to 200% increase in the total grain yield, relative to CT management”
t0“Wheat”
Claim · model-written summary
No-tillage increased total grain yield by 70 to 200% in the two years with water deficiency during grain filling.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- NT managemente5
- Outcome
- total grain yielde5
- Direction
- increasee5
- Value
- 70 to 200%e5
- Qualifier
- During the 2 years when water deficiency occurred during the grain‐filling stage (1994 and 1997)e6
- Comparator
- CT managemente5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“NT management increased grain weight by 20% and test weight by 5 to 7%, in addition to the 70 to 200% increase in the total grain yield, relative to CT management”
e6“During the 2 years when water deficiency occurred during the grain‐filling stage (1994 and 1997)”
t0“Wheat”
Claim · model-written summary
Crop yield and water use efficiency can be increased in arid zones below 200 mm annual rainfall by a no-tillage wheat-fallow rotation.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- wheat‐fallow rotation system that is managed by NTe4
- Outcome
- Crop yield and WUEe4
- Qualifier
- annual precipitation of <200 mme4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Crop yield and WUE can be increased in arid zones with annual precipitation of <200 mm, through use of a wheat‐fallow rotation system that is managed by NT”
t0“Wheat”
The same questions in other papers
tillage · quality: grain · Triticum aestivum (wheat)Positive and negative results
31 papers in the same direction as this paper · 15 in the opposite direction · 1 reporting no difference from an alternative
- positive
- no effect
- no effect
44 papers more in this group
See all 48 papers →tillage · yield · Triticum aestivum (wheat)Positive and negative results
1,115 papers in the same direction as this paper · 257 in the opposite direction · 41 reporting no difference from an alternative
- negative
- negative
- no effect
1,410 papers more in this group
See all 1,414 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.