Abstract
The no‐tillage (NT) technique represents a valuable alternative to conventional tillage (CT) for many crops, but little research has evaluated the effects of its use on the performance of grain legumes, particularly in Mediterranean regions. The present study assessed the effects of NT compared with CT on the grain yield and N 2 fixation of chickpea ( Cicer arietinum L.), faba bean ( Vicia faba L. variety minor ), pea ( Pisum sativum L.), and lentil ( Lens culinaris Medik.). The experiment was performed under rainfed conditions during four growing seasons. Nitrogen fixation was estimated using the 15 N isotope dilution technique. The response of the four species to the tillage system varied significantly by year. The grain yield was significantly higher under NT than under CT only for pea and chickpea, but the differences between the two tillage techniques were consistent only when rainfall was very scarce. The percentage of N fixed differed by species in the order faba bean > chickpea > pea > lentil. The effects of tillage on the N 2 fixation process varied significantly by species and year. Nitrogen balance was positive for faba bean and lentil and negative for chickpea and pea, with no differences by tillage. The results indicate that in cereal‐dominated Mediterranean agro‐ecosystems NT can be a valuable option for producing grain legumes, as it can improve productivity, particularly under conditions of deficient soil moisture.
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Claims 8
Claim · model-written summary
Pea grain yield was higher under NT than CT.
- Taxon
- pea
Lathyrus oleraceuse0 - Treatment
- NTe0
- Outcome
- grain yielde0
- Direction
- highere0
- Qualifier
- rainfall was very scarcee0
- Comparator
- CTe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The grain yield was significantly higher under NT than under CT only for pea and chickpea, but the differences between the two tillage techniques were consistent only when rainfall was very scarce”
Claim · model-written summary
Chickpea grain yield was higher under NT than CT.
- Taxon
- chickpea
Cicer arietinume0 - Treatment
- NTe0
- Outcome
- grain yielde0
- Direction
- highere0
- Qualifier
- rainfall was very scarcee0
- Comparator
- CTe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The grain yield was significantly higher under NT than under CT only for pea and chickpea, but the differences between the two tillage techniques were consistent only when rainfall was very scarce”
Claim · model-written summary
The fraction of nitrogen fixed ranked faba bean above chickpea above pea above lentil.
- Taxon
- faba bean
Vicia fabae0 - Outcome
- percentage of N fixede0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The percentage of N fixed differed by species in the order faba bean > chickpea > pea > lentil”
Claim · model-written summary
Tillage effects on nitrogen fixation varied significantly by species and year.
Not reportedComparatorDirection
Verbatim
e0“The effects of tillage on the N 2 fixation process varied significantly by species and year”
t0“Legumes”
Claim · model-written summary
Faba bean nitrogen balance was positive.
- Taxon
- faba beanVicia fabae0
- Outcome
- Nitrogen balancee0
- Direction
- positivee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen balance was positive for faba bean and lentil and negative for chickpea and pea, with no differences by tillage”
Claim · model-written summary
Lentil nitrogen balance was positive.
- Taxon
- lentil
Lens culinarise0 - Outcome
- Nitrogen balancee0
- Direction
- positivee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen balance was positive for faba bean and lentil and negative for chickpea and pea, with no differences by tillage”
Claim · model-written summary
Chickpea nitrogen balance was negative.
- Taxon
- chickpeaCicer arietinume0
- Outcome
- Nitrogen balancee0
- Direction
- negativee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen balance was positive for faba bean and lentil and negative for chickpea and pea, with no differences by tillage”
Claim · model-written summary
Pea nitrogen balance was negative.
- Taxon
- peaLathyrus oleraceuse0
- Outcome
- Nitrogen balancee0
- Direction
- negativee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen balance was positive for faba bean and lentil and negative for chickpea and pea, with no differences by tillage”
The same questions in other papers
tillage · yield · Lathyrus oleraceus (pea)Positive and negative results
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78 papers in the same direction as this paper · 16 in the opposite direction · 2 reporting no difference from an alternative
- negative
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See all 97 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.