Abstract
Abstract The present study was conducted to investigate the effects of deep application of nitrogen (N) fertilizer and straw incorporation on grain yield and quality, nutrient accumulation, and root morphological and physiological traits in both rice ( Oryza sativa L.) cultivars during 2019 and 2020. The experimental treatments were comprised of deep N fertilization with (DF+S) and without straw incorporation (DF) as well as broadcasting fertilization with (BF+S) and without straw return (BF). No fertilizer and no straw return treatment were taken as control. Results depicted that the DF+S and DF treatment significantly increased the grain yield by 46.4 and 42.2%, respectively, compared with BF. The DF+S also significantly increased total N accumulation by 37.9 and 44.0%, total phosphorus accumulation by 39.3 and 41.7%, total potassium accumulation by 63.6 and 73.3% for the cultivars Yuxiangyouzahn (YXYZ) and Wufengyou615 at maturity, respectively, compared with BF. Moreover, nutrient accumulation and grain yield of BF+S were slightly higher than BF. Straw incorporation resulted in better total root volume and total root length than no straw incorporation treatments in YXYZ, regardless of fertilizer application method. Root morphology traits are positively associated with other positive traits such as yield or nutrient uptake. The DF+S treatment also significantly increased the milled rice rate and remarkably reduced the chalkiness degree for both rice cultivars, compared to BF treatment. Overall, DF+S is recognized as the optimal method to improve rice productivity and quality with better nutrient acquisition.
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Claims 14
Claim · model-written summary
Deep nitrogen with straw increased grain yield by 46.4% compared with broadcast fertilizer.
- Taxon
- rice
Oryza sativat0 - Treatment
- DF+Se0
- Outcome
- grain yielde0
- Direction
- increasede0
- Value
- 46.4e0
- Comparator
- BFe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“DF+S and DF treatment significantly increased the grain yield by 46.4 and 42.2%, respectively, compared with BF”
t0“rice ( Oryza sativa L.) cultivars”
e1“cultivars Yuxiangyouzahn (YXYZ) and Wufengyou615 at maturity”
e2“DF+S and DF treatment significantly increased the grain yield by 46.4 and 42.2%, respectively, compared with BF”
Claim · model-written summary
Deep nitrogen without straw increased grain yield by 42.2% compared with broadcast fertilizer.
- Taxon
- riceOryza sativat0
- Treatment
- DFe0
- Outcome
- grain yielde0
- Direction
- increasede0
- Value
- 42.2%e0
- Comparator
- BFe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“DF+S and DF treatment significantly increased the grain yield by 46.4 and 42.2%, respectively, compared with BF”
t0“rice ( Oryza sativa L.) cultivars”
e1“cultivars Yuxiangyouzahn (YXYZ) and Wufengyou615 at maturity”
e2“DF+S and DF treatment significantly increased the grain yield by 46.4 and 42.2%, respectively, compared with BF”
Claim · model-written summary
DF+S increased total nitrogen accumulation by 37.9% in YXYZ.
- Taxon
- riceOryza sativat0
- Material
- YXYZe1
- Treatment
- DF+Se0
- Outcome
- total N accumulatione0
- Direction
- increasede0
- Value
- 37.9e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“DF+S also significantly increased total N accumulation by 37.9 and 44.0%”
t0“rice ( Oryza sativa L.) cultivars”
e1“cultivars Yuxiangyouzahn (YXYZ) and Wufengyou615 at maturity”
e2“DF+S and DF treatment significantly increased the grain yield by 46.4 and 42.2%, respectively, compared with BF”
Claim · model-written summary
DF+S increased total nitrogen accumulation by 44.0% in Wufengyou615.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“DF+S also significantly increased total N accumulation by 37.9 and 44.0%”
t0“rice ( Oryza sativa L.) cultivars”
e1“cultivars Yuxiangyouzahn (YXYZ) and Wufengyou615 at maturity”
e2“DF+S and DF treatment significantly increased the grain yield by 46.4 and 42.2%, respectively, compared with BF”
Claim · model-written summary
DF+S increased phosphorus accumulation by 39.3% in YXYZ.
- Taxon
- riceOryza sativat0
- Treatment
- DF+Se2
- Outcome
- total phosphorus accumulatione0
- Value
- 39.3e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“total phosphorus accumulation by 39.3 and 41.7%”
t0“rice ( Oryza sativa L.) cultivars”
e1“cultivars Yuxiangyouzahn (YXYZ) and Wufengyou615 at maturity”
e2“DF+S and DF treatment significantly increased the grain yield by 46.4 and 42.2%, respectively, compared with BF”
Claim · model-written summary
DF+S increased phosphorus accumulation by 41.7% in Wufengyou615.
- Taxon
- riceOryza sativat0
- Outcome
- total phosphorus accumulatione0
- Value
- 41.7%e0
Not reportedTreatmentComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“total phosphorus accumulation by 39.3 and 41.7%”
t0“rice ( Oryza sativa L.) cultivars”
e1“cultivars Yuxiangyouzahn (YXYZ) and Wufengyou615 at maturity”
e2“DF+S and DF treatment significantly increased the grain yield by 46.4 and 42.2%, respectively, compared with BF”
Claim · model-written summary
DF+S increased potassium accumulation by 63.6% in YXYZ.
- Taxon
- riceOryza sativat0
- Outcome
- total potassium accumulatione0
- Value
- 63.6e0
Not reportedTreatmentComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“total potassium accumulation by 63.6 and 73.3%”
t0“rice ( Oryza sativa L.) cultivars”
e1“cultivars Yuxiangyouzahn (YXYZ) and Wufengyou615 at maturity”
e2“DF+S and DF treatment significantly increased the grain yield by 46.4 and 42.2%, respectively, compared with BF”
Claim · model-written summary
DF+S increased potassium accumulation by 73.3% in Wufengyou615.
- Taxon
- riceOryza sativat0
- Outcome
- total potassium accumulatione0
- Value
- 73.3%e0
Not reportedTreatmentComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“total potassium accumulation by 63.6 and 73.3%”
t0“rice ( Oryza sativa L.) cultivars”
e1“cultivars Yuxiangyouzahn (YXYZ) and Wufengyou615 at maturity”
e2“DF+S and DF treatment significantly increased the grain yield by 46.4 and 42.2%, respectively, compared with BF”
Claim · model-written summary
Broadcast fertilization with straw slightly increased nutrient accumulation and grain yield over broadcast fertilization.
- Taxon
- riceOryza sativat0
- Treatment
- BF+Se0
- Outcome
- nutrient accumulation and grain yielde0
- Direction
- highere0
- Comparator
- BFe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“nutrient accumulation and grain yield of BF+S were slightly higher than BF”
t0“rice ( Oryza sativa L.) cultivars”
e1“cultivars Yuxiangyouzahn (YXYZ) and Wufengyou615 at maturity”
e2“DF+S and DF treatment significantly increased the grain yield by 46.4 and 42.2%, respectively, compared with BF”
Claim · model-written summary
Straw incorporation improved total root volume and root length in YXYZ.
- Taxon
- riceOryza sativat0
- Material
- YXYZe0
- Treatment
- Straw incorporatione0
- Outcome
- total root volume and total root lengthe0
- Direction
- bettere0
- Comparator
- no straw incorporation treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Straw incorporation resulted in better total root volume and total root length than no straw incorporation treatments in YXYZ”
t0“rice ( Oryza sativa L.) cultivars”
e1“cultivars Yuxiangyouzahn (YXYZ) and Wufengyou615 at maturity”
e2“DF+S and DF treatment significantly increased the grain yield by 46.4 and 42.2%, respectively, compared with BF”
Claim · model-written summary
Root morphology was positively associated with yield or nutrient uptake.
- Taxon
- riceOryza sativat0
- Organ / stage
- Roote0
- Outcome
- yield or nutrient uptakee0
- Direction
- positivelye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Root morphology traits are positively associated with other positive traits such as yield or nutrient uptake”
t0“rice ( Oryza sativa L.) cultivars”
e1“cultivars Yuxiangyouzahn (YXYZ) and Wufengyou615 at maturity”
e2“DF+S and DF treatment significantly increased the grain yield by 46.4 and 42.2%, respectively, compared with BF”
Claim · model-written summary
DF+S increased milled rice rate compared with BF.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“DF+S treatment also significantly increased the milled rice rate and remarkably reduced the chalkiness degree for both rice cultivars, compared to BF treatment”
Claim · model-written summary
DF+S reduced chalkiness degree compared with BF.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“DF+S treatment also significantly increased the milled rice rate and remarkably reduced the chalkiness degree for both rice cultivars, compared to BF treatment”
Claim · model-written summary
The authors recommend DF+S for rice productivity, quality and nutrient acquisition.
- Taxon
- riceOryza sativae0
- Treatment
- DF+Se0
- Outcome
- optimal method to improve rice productivity and quality with better nutrient acquisitione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“DF+S is recognized as the optimal method to improve rice productivity and quality with better nutrient acquisition”
The same questions in other papers
organic · growth · Oryza sativa (rice)Results differ
63 papers in the same direction as this paper · 14 in the opposite direction · 1 reporting no difference from an alternative
- negative
- positive
- negative
75 papers more in this group
See all 79 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.