Abstract
To elucidate the effect of no-tillage practice on the root system development and productivity in a wheat-soybean rotation system in Japan, we continuously cultivated these crops under tilled and non-tilled field conditions and compared the growth and yield for three years. Effect of presence or absence of tillage on the root growth was evaluated by the quantitative analysis for the root systems obtained by the core sampling method. The total shoot biomass and yield of wheat were significantly higher in the tilled field than in the non-tilled field in the first and second seasons, whereas, they were significantly higher in the non-tilled field in the third season. On the other hand, no significant difference between the tilled and non-tilled field was found in the soybean yield for the three seasons. Root length per unit area had a significant positive correlation with both the total shoot biomass and yield in wheat but not in soybean. The continuous no-tillage practice improved the soil condition for root development and resulted in an enhancement of the shoot growth and yield of wheat. In soybean, on the other hand, the root system development greatly fluctuated from season to season, especially, in the non-tilled field, but the productivity in the non-tilled field was relatively stable equivalent to that in the tilled field. Thus, stable production equivalent to that obtained by conventional tillage can be achieved by the no-tillage practice in a typical Japanese climate regardless of the fluctuation in root system development.
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Claims 9
Claim · model-written summary
Wheat shoot biomass and yield were higher under tillage in seasons one and two.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- tilled fielde0
- Outcome
- total shoot biomass and yielde0
- Direction
- highere0
- Qualifier
- first and second seasonse0
- Comparator
- non-tilled fielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The total shoot biomass and yield of wheat were significantly higher in the tilled field than in the non-tilled field in the first and second seasons”
Claim · model-written summary
Wheat shoot biomass and yield were higher without tillage in the third season.
- Taxon
- wheatTriticum aestivume0
- Treatment
- non-tilled fielde0
- Outcome
- shoot biomass and yielde0
- Direction
- highere0
- Qualifier
- third seasone0
- Comparator
- tilled fielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The total shoot biomass and yield of wheat were significantly higher in the tilled field than in the non-tilled field in the first and second seasons, whereas, they were significantly higher in the non-tilled field in the third season”
Claim · model-written summary
Soybean yield did not differ significantly between tillage treatments across three seasons.
- Taxon
- soybean
Glycine maxe0 - Treatment
- non-tilled fielde0
- Outcome
- soybean yielde0
- Direction
- no significant differencee0
- Qualifier
- three seasonse0
- Comparator
- tillede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no significant difference between the tilled and non-tilled field was found in the soybean yield for the three seasons”
Claim · model-written summary
Wheat root length per area correlated positively with shoot biomass and yield.
- Taxon
- wheatTriticum aestivume0
- Organ / stage
- Roote0
- Outcome
- total shoot biomass and yielde0
- Direction
- positive correlatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Root length per unit area had a significant positive correlation with both the total shoot biomass and yield in wheat”
Claim · model-written summary
Soybean root length per area was not significantly correlated with biomass and yield.
- Taxon
- soybeanGlycine maxe0
- Organ / stage
- Roote0
- Outcome
- total shoot biomass and yielde0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Root length per unit area had a significant positive correlation with both the total shoot biomass and yield in wheat but not in soybean”
Claim · model-written summary
Continuous no-tillage improved soil conditions for wheat root development and enhanced shoot growth and yield.
- Taxon
- wheatTriticum aestivume0
- Treatment
- continuous no-tillage practicee0
- Outcome
- shoot growth and yielde0
- Direction
- enhancemente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The continuous no-tillage practice improved the soil condition for root development and resulted in an enhancement of the shoot growth and yield of wheat”
Claim · model-written summary
Soybean root development fluctuated strongly across seasons, especially without tillage.
- Taxon
- soybeanGlycine maxt0
- Outcome
- root system developmente0
- Setting
- non-tilled fielde0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the root system development greatly fluctuated from season to season, especially, in the non-tilled field”
t0“Wheat-Soybean Rotation”
Claim · model-written summary
Soybean productivity without tillage remained relatively stable and equivalent to tilled conditions.
- Taxon
- soybeanGlycine maxt0
- Treatment
- non-tilled fielde0
- Outcome
- productivitye0
- Direction
- equivalente0
- Comparator
- tilled fielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the productivity in the non-tilled field was relatively stable equivalent to that in the tilled field”
t0“Wheat-Soybean Rotation”
Claim · model-written summary
The authors conclude no-tillage can achieve stable production equivalent to conventional tillage in a typical Japanese climate.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- no-tillage practicee0
- Outcome
- stable production equivalent to that obtained by conventional tillagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“stable production equivalent to that obtained by conventional tillage can be achieved by the no-tillage practice in a typical Japanese climate”
t0“Wheat-Soybean Rotation”
The same questions in other 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
- no effect
- positive
- positive
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.