Abstract
This study aimed to assess the feasibility of a novel weeding and fertilization scheme, namely, mechanical weeding plus a one-time deep application of a reduced amount of slow-release fertilizer for rice cultivation. The effects of the weeding and fertilization method on rice yield and quality were investigated using a split plot test as the research method. Two weeding methods, namely, chemical weeding (CW) and mechanical weeding (MW), and four fertilization methods were tested, including the conventional fertilization method (quantitative split broadcast application of fast-release N fertilizer (CK)), the quantitative split broadcast application of 80% fast-release N fertilizer (LCK), the one-time base application of slow-release fertilizer (SR), and the one-time deep application of 80% slow-release fertilizer (LSR). The results showed that the rice yield under MW with LSR treatment can maintain a high level—higher than 9.2 t ha−1 per year. This was attributed to the slow-release fertilizer and deep fertilization, which increased the number of stems and tillers in the pre-fertility and spike rate, respectively, resulting in a high panicle number with a 20% reduction of N fertilizer. Furthermore, mechanical weeding improved the seed-setting rate, resulting in a higher number of grains per panicle, a higher panicle number, and an increased thousand-grain weight, thereby maintaining a high yield. At the same time, the quality of rice under MW with LSR treatment improved, specifically reflected in the significant improvement of the processing and appearance quality of rice, a slight increase in protein content, and a reduction in the amylose content, thereby improving its nutritional quality while maintaining good cooking quality.
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Claims 9
Claim · model-written summary
Mechanical weeding with LSR maintained rice yield above 9.2 t ha−1 per year.
- Taxon
- rice
Oryza sativae0 - Treatment
- MW with LSR treatmente0
- Outcome
- rice yielde0
- Direction
- highere0
- Value
- 9.2 t ha−1 per yeare0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“rice yield under MW with LSR treatment can maintain a high level—higher than 9.2 t ha−1 per year.”
Claim · model-written summary
Slow-release fertilizer increased early stems and tillers.
- Taxon
- RiceOryza sativat0
- Organ / stage
- pre-fertilitye0
- Treatment
- slow-release fertilizere0
- Outcome
- number of stems and tillerse0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“slow-release fertilizer and deep fertilization, which increased the number of stems and tillers in the pre-fertility and spike rate, respectively”
t0“Effects of a Novel Weeding and Fertilization Scheme on Yield and Quality of Rice”
Claim · model-written summary
Deep fertilization increased spike rate.
- Taxon
- RiceOryza sativat0
- Treatment
- deep fertilizatione0
- Outcome
- spike ratee0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“deep fertilization, which increased the number of stems and tillers in the pre-fertility and spike rate, respectively”
t0“Effects of a Novel Weeding and Fertilization Scheme on Yield and Quality of Rice”
Claim · model-written summary
The scheme gave high panicle number with 20% less N fertilizer.
- Taxon
- RiceOryza sativat0
- Outcome
- panicle numbere0
- Direction
- highe0
- Value
- 20%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a high panicle number with a 20% reduction of N fertilizer”
t0“Effects of a Novel Weeding and Fertilization Scheme on Yield and Quality of Rice”
Claim · model-written summary
Mechanical weeding improved seed-setting rate.
- Taxon
- RiceOryza sativat0
- Treatment
- mechanical weedinge0
- Outcome
- seed-setting ratee0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“mechanical weeding improved the seed-setting rate”
t0“Effects of a Novel Weeding and Fertilization Scheme on Yield and Quality of Rice”
Claim · model-written summary
Mechanical weeding increased grains per panicle, panicle number, and thousand-grain weight.
- Taxon
- RiceOryza sativat0
- Treatment
- mechanical weedinge1
- Outcome
- number of grains per panicle, a higher panicle number, and an increased thousand-grain weighte0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a higher number of grains per panicle, a higher panicle number, and an increased thousand-grain weight”
e1“mechanical weeding improved the seed-setting rate”
t0“Effects of a Novel Weeding and Fertilization Scheme on Yield and Quality of Rice”
Claim · model-written summary
Mechanical weeding with LSR significantly improved processing and appearance quality.
- Taxon
- riceOryza sativae0
- Treatment
- MW with LSR treatmente0
- Outcome
- processing and appearance quality of ricee0
- Direction
- improvemente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“quality of rice under MW with LSR treatment improved, specifically reflected in the significant improvement of the processing and appearance quality of rice”
Claim · model-written summary
Mechanical weeding with LSR slightly increased protein content.
- Taxon
- RiceOryza sativat0
- Treatment
- MW with LSR treatmente1
- Outcome
- protein contente0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a slight increase in protein content”
e1“rice yield under MW with LSR treatment can maintain a high level—higher than 9.2 t ha−1 per year.”
t0“Effects of a Novel Weeding and Fertilization Scheme on Yield and Quality of Rice”
Claim · model-written summary
Mechanical weeding with LSR reduced amylose content.
- Taxon
- RiceOryza sativat0
- Outcome
- amylose contente0
- Direction
- reductione0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a reduction in the amylose content”
t0“Effects of a Novel Weeding and Fertilization Scheme on Yield and Quality of Rice”
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