Abstract
The high demand for labor during rice seedling cultivation and transplantation poses a major challenge in advancing machine-transplanted rice cultivation. This problem may be solved by increasing the seeding rate during seedling production while reducing the number of seedling trays. In this study, the commonly used combination of 150 g/tray with a 20-day seedling age in rice production was used as CK. Besides, some field experiments were conducted under seedling age conditions of 10 and 15 days from 2021 to 2022 to explore the effects of 250, 300, and 350 g/tray on the seedling quality, mechanical transplantation quality, yields, and economic benefits of rice. The cultivation of seedlings under a high seeding rate and short seedling age significantly affected seedling characteristics, but there was no significant difference in seedling vitality compared to CK. The minimum number of rice trays used in the experiment was observed in the treatment of 350-10, only 152-155 trays per hectare, resulting in a 62% reduction in the number of trays needed. By increasing the seeding rate of rice, missed holes during mechanical transplantation decreased by 2.8 to 4%. The highest yields and economic gains were achieved by the treatment of 300-15. These results indicated that using crop straw boards can reduce the application of seedling trays. On that basis, the yield of rice can be increased by increasing the seeding rate and shortening the seedling age of rice under the premise of ensuring seedling quality.
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Claims 8
Claim · model-written summary
High seeding rate and short seedling age significantly affected seedling characteristics.
- Taxon
- rice
Oryza sativat0 - Treatment
- high seeding rate and short seedling agee0
- Outcome
- seedling characteristicse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The cultivation of seedlings under a high seeding rate and short seedling age significantly affected seedling characteristics, but there was no significant difference in seedling vitality compared to CK.”
t0“rice”
Claim · model-written summary
Seedling vitality did not significantly differ from CK.
- Taxon
- riceOryza sativat0
- Treatment
- high seeding rate and short seedling agee0
- Outcome
- seedling vitalitye0
- Comparator
- CKe0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The cultivation of seedlings under a high seeding rate and short seedling age significantly affected seedling characteristics, but there was no significant difference in seedling vitality compared to CK.”
t0“rice”
Claim · model-written summary
The 350-10 treatment used 152-155 trays per hectare, a 62% reduction.
- Taxon
- riceOryza sativae0
- Treatment
- 350-10e0
- Outcome
- number of rice trayse0
- Direction
- reductione0
- Value
- 62%e0
- Qualifier
- 152-155 trays per hectaree0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The minimum number of rice trays used in the experiment was observed in the treatment of 350-10, only 152-155 trays per hectare, resulting in a 62% reduction in the number of trays needed.”
Claim · model-written summary
Increasing rice seeding rate decreased missed transplant holes by 2.8 to 4%.
- Taxon
- riceOryza sativae0
- Treatment
- increasing the seeding rate of ricee0
- Outcome
- missed holes during mechanical transplantatione0
- Direction
- decreasede0
- Value
- 2.8 to 4%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“By increasing the seeding rate of rice, missed holes during mechanical transplantation decreased by 2.8 to 4%.”
Claim · model-written summary
The 300-15 treatment produced the highest yields.
- Taxon
- riceOryza sativat0
- Treatment
- 300-15e0
- Outcome
- yieldse0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest yields and economic gains were achieved by the treatment of 300-15.”
t0“rice”
Claim · model-written summary
The 300-15 treatment produced the highest economic gains.
- Taxon
- riceOryza sativat0
- Treatment
- 300-15e0
- Outcome
- economic gainse0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest yields and economic gains were achieved by the treatment of 300-15.”
t0“rice”
Claim · model-written summary
The authors concluded that crop straw boards can reduce the need for seedling trays.
- Taxon
- riceOryza sativat0
- Outcome
- using crop straw boards can reduce the application of seedling trayse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These results indicated that using crop straw boards can reduce the application of seedling trays.”
t0“rice”
Claim · model-written summary
The authors concluded that greater seeding rate and shorter seedling age can increase rice yield if seedling quality is ensured.
- Taxon
- riceOryza sativae0
- Outcome
- yield of rice can be increasede0
- Qualifier
- under the premise of ensuring seedling qualitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“On that basis, the yield of rice can be increased by increasing the seeding rate and shortening the seedling age of rice under the premise of ensuring seedling quality.”
The same questions in other papers
density · pest · Oryza sativa (rice)Positive and negative results
7 papers in the same direction as this paper · 5 in the opposite direction
- no effect
- negative
- no effect
9 papers more in this group
See all 13 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.