Abstract
Field experiment combining with laboratory analysis were conducted to study the effects of three different nitrogen ratio fertilizer methods(medium nitrogen ratio fertilizer method—the ratio of N,P2O5,K2O is 190,90,100 kg/hm2,high nitrogen ratio fertilizer method—N,P2O5,K2O is 210,90, 100 kg/hm2 and low nitrogen ratio fertilizer method—N,P2O5,K2O is 170,90,100 kg/hm2) on key enzymes activities of carbon metabolism and forage rice(Weiyou 198) yield under water-saving condition in 2003 in Changsha city.The results showed that,the activities of sucrose phosphate synthase(SPS),sucrose synthase(SUS) and ADP-glucose pyrophosphorylase(ADPase) in flag leaves and grains,the net photosynthesis rate in flag leaves,the content of sucrose in flag leaves and grains,the ability of sucrose was converted into starch were improved significantly by medium nitrogen ratio fertilizer method compared with those of High Nitrogen Ratio fertilizer method and Low Nitrogen Ratio fertilizer method.In compared with the high nitrogen ratio fertilizer method treatment and low nitrogen ratio fertilizer method treatment,the effective spikes under medium nitrogen ratio fertilizer method were increased by 7.70% and 10.32%,and grains yield were increased by 12.02% and 8.47%,respectively.The medium nitrogen ratio fertilization method was suitable for high protein forage rice cultivation.
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Claims 9
Claim · model-written summary
Medium nitrogen ratio significantly improved SPS, SUS and ADPase activities relative to high and low ratios.
- Taxon
- forage ricet0
- Organ / stage
- flag leaves and grainse0
- Treatment
- medium nitrogen ratio fertilizer methode0
- Outcome
- activities of sucrose phosphate synthase(SPS),sucrose synthase(SUS) and ADP-glucose pyrophosphorylase(ADPase)e0
- Direction
- improved significantlye0
- Comparator
- High Nitrogen Ratio fertilizer method and Low Nitrogen Ratio fertilizer methode0
Verbatim
e0“The results showed that,the activities of sucrose phosphate synthase(SPS),sucrose synthase(SUS) and ADP-glucose pyrophosphorylase(ADPase) in flag leaves and grains,the net photosynthesis rate in flag leaves,the content of sucrose in flag leaves and grains,the ability of sucrose was converted into starch were improved significantly by medium nitrogen ratio fertilizer method compared with those of High Nitrogen Ratio fertilizer method and Low Nitrogen Ratio fertilizer method”
t0“forage rice”
Claim · model-written summary
Medium nitrogen ratio significantly improved flag leaf net photosynthesis rate.
Verbatim
e0“The results showed that,the activities of sucrose phosphate synthase(SPS),sucrose synthase(SUS) and ADP-glucose pyrophosphorylase(ADPase) in flag leaves and grains,the net photosynthesis rate in flag leaves,the content of sucrose in flag leaves and grains,the ability of sucrose was converted into starch were improved significantly by medium nitrogen ratio fertilizer method compared with those of High Nitrogen Ratio fertilizer method and Low Nitrogen Ratio fertilizer method”
t0“forage rice”
Claim · model-written summary
Medium nitrogen ratio significantly improved sucrose content in leaves and grains.
Verbatim
e0“The results showed that,the activities of sucrose phosphate synthase(SPS),sucrose synthase(SUS) and ADP-glucose pyrophosphorylase(ADPase) in flag leaves and grains,the net photosynthesis rate in flag leaves,the content of sucrose in flag leaves and grains,the ability of sucrose was converted into starch were improved significantly by medium nitrogen ratio fertilizer method compared with those of High Nitrogen Ratio fertilizer method and Low Nitrogen Ratio fertilizer method”
t0“forage rice”
Claim · model-written summary
Medium nitrogen ratio significantly improved the ability to convert sucrose into starch.
Verbatim
e0“The results showed that,the activities of sucrose phosphate synthase(SPS),sucrose synthase(SUS) and ADP-glucose pyrophosphorylase(ADPase) in flag leaves and grains,the net photosynthesis rate in flag leaves,the content of sucrose in flag leaves and grains,the ability of sucrose was converted into starch were improved significantly by medium nitrogen ratio fertilizer method compared with those of High Nitrogen Ratio fertilizer method and Low Nitrogen Ratio fertilizer method”
t0“forage rice”
Claim · model-written summary
Medium nitrogen ratio raised effective spikes by 7.70% versus high nitrogen.
Verbatim
e0“In compared with the high nitrogen ratio fertilizer method treatment and low nitrogen ratio fertilizer method treatment,the effective spikes under medium nitrogen ratio fertilizer method were increased by 7.70% and 10.32%,and grains yield were increased by 12.02% and 8.47%,respectively”
t0“forage rice”
Claim · model-written summary
Medium nitrogen ratio raised effective spikes by 10.32% versus low nitrogen.
Verbatim
e0“In compared with the high nitrogen ratio fertilizer method treatment and low nitrogen ratio fertilizer method treatment,the effective spikes under medium nitrogen ratio fertilizer method were increased by 7.70% and 10.32%,and grains yield were increased by 12.02% and 8.47%,respectively”
t0“forage rice”
Claim · model-written summary
Medium nitrogen ratio raised grain yield by 12.02% versus high nitrogen.
Verbatim
e0“In compared with the high nitrogen ratio fertilizer method treatment and low nitrogen ratio fertilizer method treatment,the effective spikes under medium nitrogen ratio fertilizer method were increased by 7.70% and 10.32%,and grains yield were increased by 12.02% and 8.47%,respectively”
t0“forage rice”
Claim · model-written summary
Medium nitrogen ratio raised grain yield by 8.47% versus low nitrogen.
Verbatim
e0“In compared with the high nitrogen ratio fertilizer method treatment and low nitrogen ratio fertilizer method treatment,the effective spikes under medium nitrogen ratio fertilizer method were increased by 7.70% and 10.32%,and grains yield were increased by 12.02% and 8.47%,respectively”
t0“forage rice”
Claim · model-written summary
Medium nitrogen ratio fertilization was recommended for high protein forage rice cultivation.
Verbatim
e0“The medium nitrogen ratio fertilization method was suitable for high protein forage rice cultivation”
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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.