Abstract
Abstract The semiarid regions (SARs) are characterized by extreme temperature changes, low and unevenly distributed precipitation, hazardous torrential rains, and frequent early spring droughts. Barley is the most highly adapted cereal in SARs, but durum wheat is the most widely cultivated. The area in cereals varies considerably from year to year, and yields are low. Tillage practices are used to conserve both soil and moisture and to prepare the seed bed. However, improved fertilizer use and weed control practices are not being used. Without development of needed cultural and tillage practice systems, the genetic potential of today's varieties cannot be realized. Planting depth and rate, row spacing, fertilizer application, and weed control were investigated under conventional tillage and reduced tillage systems. In on-farm trials, reduced tillage did not significantly affect durum wheat yield but slightly increased barley yield compared with traditional practices. Optimum planting depth for both wheat and barley was 7 cm. Higher seeding rates increased the yield of both crops. Highest yields were obtained at planting rates of 140 kg/ha for wheat and 100 kg/ha for barley. At these rates, maximum yields were achieved at row spacings of 30 cm for barley and 20 cm for durum wheat. Use of fertilizer and weed control increased yields substantially. Sustained and increased production in SARs can be achieved with a “package of practices” approach that incorporates these cultural and tillage practices.
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Claims 13
Claim · model-written summary
Reduced tillage did not significantly affect durum wheat yield versus traditional practices.
- Taxon
- durum wheat
Triticum turgidum subsp. durume0 - Treatment
- reduced tillagee0
- Outcome
- durum wheat yielde0
- Direction
- did not significantly affecte0
- Comparator
- traditional practicese0
- Setting
- on-farm trialse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In on-farm trials, reduced tillage did not significantly affect durum wheat yield but slightly increased barley yield compared with traditional practices.”
Claim · model-written summary
Reduced tillage slightly increased barley yield versus traditional practices.
- Taxon
- barley
.jpg?width=60)
Hordeum vulgaree0 - Treatment
- reduced tillagee0
- Outcome
- barley yielde0
- Direction
- increasede0
- Comparator
- traditional practicese0
- Setting
- on-farm trialse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“In on-farm trials, reduced tillage did not significantly affect durum wheat yield but slightly increased barley yield compared with traditional practices.”
Claim · model-written summary
Optimum planting depth for wheat was 7 cm.
- Taxon
- wheat
Triticum aestivume0 - Outcome
- Optimum planting depthe0
- Value
- 7 cme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Optimum planting depth for both wheat and barley was 7 cm.”
Claim · model-written summary
Optimum planting depth for barley was 7 cm.
- Taxon
- barleyHordeum vulgaree0
- Outcome
- Optimum planting depthe0
- Value
- 7 cme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Optimum planting depth for both wheat and barley was 7 cm.”
Claim · model-written summary
Higher seeding rates increased wheat yield.
- Taxon
- durum wheatTriticum turgidum subsp. durumt0
- Treatment
- Higher seeding ratese0
- Outcome
- yielde0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Higher seeding rates increased the yield of both crops.”
t0“durum wheat”
Claim · model-written summary
Higher seeding rates increased barley yield.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- Higher seeding ratese0
- Outcome
- yielde0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Higher seeding rates increased the yield of both crops.”
t0“barley”
Claim · model-written summary
The highest wheat yield occurred at a planting rate of 140 kg/ha.
- Taxon
- wheatTriticum aestivume0
- Treatment
- planting rates of 140 kg/hae0
- Outcome
- Highest yieldse0
- Direction
- Higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Highest yields were obtained at planting rates of 140 kg/ha for wheat and 100 kg/ha for barley.”
Claim · model-written summary
The highest barley yield occurred at a planting rate of 100 kg/ha.
- Taxon
- barleyHordeum vulgaree0
- Treatment
- 100 kg/ha for barleye0
- Outcome
- Highest yieldse0
- Direction
- Higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Highest yields were obtained at planting rates of 140 kg/ha for wheat and 100 kg/ha for barley.”
Claim · model-written summary
At these planting rates, maximum barley yield occurred at 30 cm row spacing.
- Taxon
- barleyHordeum vulgaree0
- Treatment
- row spacings of 30 cme0
- Outcome
- maximum yieldse0
- Direction
- maximume0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At these rates, maximum yields were achieved at row spacings of 30 cm for barley and 20 cm for durum wheat.”
Claim · model-written summary
At these planting rates, maximum durum wheat yield occurred at 20 cm row spacing.
- Taxon
- durum wheatTriticum turgidum subsp. durume0
- Treatment
- 20 cm for durum wheate0
- Outcome
- maximum yieldse0
- Direction
- maximume0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At these rates, maximum yields were achieved at row spacings of 30 cm for barley and 20 cm for durum wheat.”
Claim · model-written summary
Fertilizer use substantially increased cereal yields.
- Taxon
- barley and durum wheatHordeum vulgareTriticum turgidum subsp. durumt0
- Treatment
- fertilizere0
- Outcome
- yieldse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Use of fertilizer and weed control increased yields substantially.”
t0“barley and durum wheat”
Claim · model-written summary
Weed control substantially increased cereal yields.
- Taxon
- barley and durum wheatHordeum vulgareTriticum turgidum subsp. durumt0
- Treatment
- weed controle0
- Outcome
- yieldse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Use of fertilizer and weed control increased yields substantially.”
t0“barley and durum wheat”
Claim · model-written summary
The authors recommend a package of cultural and tillage practices for sustained and increased cereal production in semiarid regions.
- Taxon
- barley and durum wheatHordeum vulgareTriticum turgidum subsp. durumt0
- Outcome
- “package of practices” approache0
- Setting
- SARse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sustained and increased production in SARs can be achieved with a “package of practices” approach that incorporates these cultural and tillage practices.”
t0“barley and durum wheat”
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