Abstract
Since the authors reported the favourable effects of the nitrogen top-dressing at full heading time on the rice plant in the previous paper (XL VII, Vol. 27, No. 1), they have further been examining them for those several years under the various conditions differing in the amount of basic fertilizer, time of planting, spacing and variety, and obtained the following conclusions. 1. Nitrogen top-dressing at full heading time caused the plant to increase the rate of photosynthesis and amount of dry-matter as well in the period after heading except the cases of extremly unfavourable weather conditions and extremely dense spacing. 2. When the amount of dry-matter was increased by nitrogen top-dressing at full heading time, it was generally observed that yield as well as the percentage of ripened grains were clearly increased independently of the time of planting, spacing and variety, except the case of the control (non-top-dressed) plot being high enough in its percentage of ripened grains. 3. No effect of nitrogen top-dressing at full heading time was found on the plant in the case of the translocation of carbohydrates being disturbed by cool temperature in autumn or the enough amount of nitrogen being supplied to the plant from the soil even in the period after heading.
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Claims 6
Claim · model-written summary
Nitrogen top-dressing at full heading increased rice photosynthesis after heading except under extremely unfavorable weather or dense spacing.
- Taxon
- rice
Oryza sativat0 - Treatment
- Nitrogen top-dressing at full heading timee0
- Outcome
- rate of photosynthesise0
- Direction
- increasee0
- Qualifier
- except the cases of extremly unfavourable weather conditions and extremely dense spacinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen top-dressing at full heading time caused the plant to increase the rate of photosynthesis and amount of dry-matter as well in the period after heading except the cases of extremly unfavourable weather conditions and extremely dense spacing.”
t0“Lowland Rice”
Claim · model-written summary
Nitrogen top-dressing at full heading increased rice dry matter after heading except under extremely unfavorable weather or dense spacing.
- Taxon
- riceOryza sativat0
- Treatment
- Nitrogen top-dressing at full heading timee0
- Outcome
- amount of dry-mattere0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen top-dressing at full heading time caused the plant to increase the rate of photosynthesis and amount of dry-matter as well in the period after heading except the cases of extremly unfavourable weather conditions and extremely dense spacing.”
t0“Lowland Rice”
Claim · model-written summary
When dry matter increased, nitrogen top-dressing increased rice yield except where control ripening was already high.
- Taxon
- RiceOryza sativat0
- Treatment
- nitrogen top-dressing at full heading timee0
- Outcome
- yielde0
- Direction
- increasede0
- Qualifier
- except the case of the control (non-top-dressed) plot being high enough in its percentage of ripened grainse0
- Comparator
- control (non-top-dressed) plote0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When the amount of dry-matter was increased by nitrogen top-dressing at full heading time, it was generally observed that yield as well as the percentage of ripened grains were clearly increased independently of the time of planting, spacing and variety, except the case of the control (non-top-dressed) plot being high enough in its percentage of ripened grains.”
t0“Lowland Rice”
Claim · model-written summary
When dry matter increased, nitrogen top-dressing increased the percentage of ripened rice grains except where the control was already high.
- Taxon
- RiceOryza sativat0
- Treatment
- nitrogen top-dressing at full heading timee0
- Outcome
- percentage of ripened grainse0
- Direction
- increasede0
- Comparator
- control (non-top-dressed) plote0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When the amount of dry-matter was increased by nitrogen top-dressing at full heading time, it was generally observed that yield as well as the percentage of ripened grains were clearly increased independently of the time of planting, spacing and variety, except the case of the control (non-top-dressed) plot being high enough in its percentage of ripened grains.”
t0“Lowland Rice”
Claim · model-written summary
Nitrogen top-dressing had no effect on rice when cool autumn temperatures disturbed carbohydrate translocation.
- Taxon
- RiceOryza sativat0
- Treatment
- nitrogen top-dressing at full heading timee0
- Outcome
- plante0
- Direction
- No effecte0
- Qualifier
- translocation of carbohydrates being disturbed by cool temperature in autumne0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No effect of nitrogen top-dressing at full heading time was found on the plant in the case of the translocation of carbohydrates being disturbed by cool temperature in autumn”
t0“Lowland Rice”
Claim · model-written summary
Nitrogen top-dressing had no effect on rice when soil supplied enough nitrogen after heading.
- Taxon
- RiceOryza sativat0
- Treatment
- nitrogen top-dressing at full heading timee0
- Outcome
- plante0
- Direction
- No effecte0
- Qualifier
- enough amount of nitrogen being supplied to the plant from the soil even in the period after headinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No effect of nitrogen top-dressing at full heading time was found on the plant in the case of the translocation of carbohydrates being disturbed by cool temperature in autumn or the enough amount of nitrogen being supplied to the plant from the soil even in the period after heading.”
t0“Lowland Rice”
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