Abstract
Filed experiments were conducted to study effects of different ratios of base to top dressing for nitrogen fertilizer on grain yield and N use efficiency of Shengxiang 1 under the same soil basic fertility and nitrogen fertilizer rate.The results showed that adequate tillering fertilizer could increase yield by improving the tiller numbers of rice,while balanced fertilizer of base-tiller-panicle-granular fertilizer could increase yield by increasing number of effective panicles and grain.The fertilizer methods by improving the proportion of tillering fertilizer or panicle fertilizer,or balancing the application of base-tiller-panicle-granular fertilizer could promote N agronomic efficiency,physiological efficiency and dependency rate.But above methods had no significant effects on nitrogen partial factor productivity,and had negative effect on apparent nitrogen efficiency.There were significant differences among the amount of nitrogen accumulation in rice of each plant growing stages under different ratio of base to top dressing for nitrogen fertilizer.The peak periods of absorbing nitrogen appeared at tillering,booting or heading stage,therefore,the practice in rice production should balance base-tiller-panicle-granular fertilizer.
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Claims 8
Claim · model-written summary
Adequate tillering fertilizer increased rice yield by improving tiller numbers.
- Taxon
- rice
Oryza sativae0 - Treatment
- adequate tillering fertilizere0
- Outcome
- yielde0
- Direction
- increasee0
- Qualifier
- improving the tiller numberse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“adequate tillering fertilizer could increase yield by improving the tiller numbers of rice”
Claim · model-written summary
Balanced base-tiller-panicle-granular fertilizer increased rice yield by increasing the number of effective panicles and grains.
- Taxon
- RiceOryza sativat0
- Treatment
- balanced fertilizer of base-tiller-panicle-granular fertilizere0
- Outcome
- yielde0
- Direction
- increasee0
- Qualifier
- increasing number of effective panicles and graine0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rice Yield”
e0“balanced fertilizer of base-tiller-panicle-granular fertilizer could increase yield by increasing number of effective panicles and grain”
Claim · model-written summary
Raising the proportion of tillering or panicle fertilizer, or balancing base-tiller-panicle-granular fertilizer, improved N agronomic efficiency, physiological efficiency and dependency rate in rice.
- Taxon
- RiceOryza sativat0
- Treatment
- improving the proportion of tillering fertilizer or panicle fertilizer,or balancing the application of base-tiller-panicle-granular fertilizere0
- Outcome
- N agronomic efficiency,physiological efficiency and dependency ratee0
- Direction
- promotee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rice Yield”
e0“The fertilizer methods by improving the proportion of tillering fertilizer or panicle fertilizer,or balancing the application of base-tiller-panicle-granular fertilizer could promote N agronomic efficiency,physiological efficiency and dependency rate”
Claim · model-written summary
These fertilizer methods had no significant effect on nitrogen partial factor productivity in rice.
- Taxon
- RiceOryza sativat0
- Treatment
- above methodse0
- Outcome
- nitrogen partial factor productivitye0
- Direction
- no significant effectse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rice Yield”
e0“above methods had no significant effects on nitrogen partial factor productivity,and had negative effect on apparent nitrogen efficiency”
Claim · model-written summary
These fertilizer methods had a negative effect on apparent nitrogen efficiency in rice.
- Taxon
- RiceOryza sativat0
- Treatment
- above methodse0
- Outcome
- apparent nitrogen efficiencye0
- Direction
- negative effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rice Yield”
e0“above methods had no significant effects on nitrogen partial factor productivity,and had negative effect on apparent nitrogen efficiency”
Claim · model-written summary
Nitrogen accumulation in rice at each growth stage differed significantly among base-to-topdressing nitrogen ratios.
- Taxon
- RiceOryza sativat0
- Organ / stage
- each plant growing stagese0
- Treatment
- different ratio of base to top dressing for nitrogen fertilizere0
- Outcome
- amount of nitrogen accumulatione0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rice Yield”
e0“There were significant differences among the amount of nitrogen accumulation in rice of each plant growing stages under different ratio of base to top dressing for nitrogen fertilizer”
Claim · model-written summary
Rice absorbed nitrogen most at the tillering, booting or heading stage.
- Taxon
- RiceOryza sativat0
- Organ / stage
- tillering,booting or heading stagee0
- Outcome
- peak periods of absorbing nitrogene0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rice Yield”
e0“The peak periods of absorbing nitrogen appeared at tillering,booting or heading stage”
Claim · model-written summary
The authors recommend that rice production balance base-tiller-panicle-granular fertilizer.
- Taxon
- riceOryza sativae0
- Outcome
- balance base-tiller-panicle-granular fertilizere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the practice in rice production should balance base-tiller-panicle-granular fertilizer”
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