Abstract
This study examines sustainable agricultural development in the Mekong Delta, Vietnam by focusing on technology improvement for minimizing the environmental load in rice production with sufficient yield and quality. Among rice-producing countries, Vietnam is the third-largest rice export country worldwide. High-yield rice production is still a critical issue in Vietnam. However, in recent years, quality improvement and low environmental load agriculture have been fundamental issues. In this research, we conducted rice cultivation experiments in 2014, 2015, and 2017 under different conditions of planting density, fertilizer volume, rice variety, use of fertilizer applicator mounted on a transplanter, and use of high-density seedling mat called “Mitsunae.” We conducted 7 seasons with 79 planting patterns in experiments to compare yield, quality, and fertilizer volume in rice production. As a result of productivity achievement, high-density transplanting does not always produce a high yield. Each performance depends on transplanting density, rice variety, fertilizer volume, or other factors. In general, transplanting machine with a planting width of 25cm achieved a significant yield with short growing duration rice varieties. Those varieties are popular in the Mekong Delta. We conducted experiments of “high-density seedling mat” called “Mitsunae”, a new nursery technology developed in Japan, to reduce the environmental load and operating costs in rice production. With the “Mitsunae” method, we can reduce the number of rice seedling trays up to three times that of conventional seedling mats. Then, we can minimize the nursery surface area, nursery materials, and total working time, including transplanting time. The “life cycle assessment (LCA)” method is practical for correctly quantifying environmental load reduction. We investigated environmental load reduction caused by “Mitsunae” rice nursery process using LCA method in this research. We could achieve about 20% – 30% reduction of the “greenhouse gas (GHG)” emission volume and economic benefits created by the “Mitsunae” nursery process.
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Claims 8
Claim · model-written summary
High-density transplanting did not consistently increase rice yield.
- Taxon
- Rice
Oryza sativat0 - Treatment
- high-density transplantinge0
- Outcome
- yielde0
- Direction
- does not always produce a high yielde0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“high-density transplanting does not always produce a high yield”
t0“Rice Production Technology Improvements for Higher Productivity Along with the Sustainable Agriculture Process in the Mekong Delta”
Claim · model-written summary
Performance varied with transplanting density, rice variety, fertilizer volume, and other factors.
- Taxon
- RiceOryza sativat0
- Treatment
- transplanting density, rice variety, fertilizer volumee0
- Outcome
- performancee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Each performance depends on transplanting density, rice variety, fertilizer volume, or other factors”
t0“Rice Production Technology Improvements for Higher Productivity Along with the Sustainable Agriculture Process in the Mekong Delta”
Claim · model-written summary
A 25cm planting-width machine achieved significant yield with short-duration rice varieties.
- Taxon
- RiceOryza sativat0
- Material
- short growing duration rice varietiese0
- Treatment
- transplanting machine with a planting width of 25cme0
- Outcome
- yielde0
- Direction
- significante0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“transplanting machine with a planting width of 25cm achieved a significant yield with short growing duration rice varieties”
t0“Rice Production Technology Improvements for Higher Productivity Along with the Sustainable Agriculture Process in the Mekong Delta”
Claim · model-written summary
The Mitsunae nursery method reduced seedling tray numbers by up to threefold versus conventional mats.
- Taxon
- RiceOryza sativat0
- Treatment
- “Mitsunae” methode0
- Outcome
- number of rice seedling trayse0
- Direction
- reducee0
- Value
- up to three timese0
- Comparator
- conventional seedling matse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With the “Mitsunae” method, we can reduce the number of rice seedling trays up to three times that of conventional seedling mats”
t0“Rice Production Technology Improvements for Higher Productivity Along with the Sustainable Agriculture Process in the Mekong Delta”
Claim · model-written summary
The Mitsunae method minimized nursery area and materials.
- Taxon
- RiceOryza sativat0
- Treatment
- Technology Improvementst0
- Outcome
- nursery surface area, nursery materialse0
- Direction
- minimizee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Then, we can minimize the nursery surface area, nursery materials, and total working time, including transplanting time”
t0“Rice Production Technology Improvements for Higher Productivity Along with the Sustainable Agriculture Process in the Mekong Delta”
Claim · model-written summary
The Mitsunae method minimized total working time, including transplanting time.
- Taxon
- RiceOryza sativat0
- Treatment
- Technology Improvementst0
- Outcome
- total working time, including transplanting timee0
- Direction
- minimizee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Then, we can minimize the nursery surface area, nursery materials, and total working time, including transplanting time”
t0“Rice Production Technology Improvements for Higher Productivity Along with the Sustainable Agriculture Process in the Mekong Delta”
Claim · model-written summary
The Mitsunae nursery process reduced greenhouse gas emissions by about 20%–30%.
- Taxon
- RiceOryza sativat0
- Treatment
- “Mitsunae” nursery processe0
- Outcome
- “greenhouse gas (GHG)” emission volumee0
- Direction
- reductione0
- Value
- about 20% – 30%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“We could achieve about 20% – 30% reduction of the “greenhouse gas (GHG)” emission volume and economic benefits created by the “Mitsunae” nursery process”
t0“Rice Production Technology Improvements for Higher Productivity Along with the Sustainable Agriculture Process in the Mekong Delta”
Claim · model-written summary
The Mitsunae nursery process yielded economic benefits.
- Taxon
- RiceOryza sativat0
- Treatment
- “Mitsunae” nursery processe0
- Outcome
- economic benefitse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“We could achieve about 20% – 30% reduction of the “greenhouse gas (GHG)” emission volume and economic benefits created by the “Mitsunae” nursery process”
t0“Rice Production Technology Improvements for Higher Productivity Along with the Sustainable Agriculture Process in the Mekong Delta”
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- negative
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See all 1,078 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.