Claim · model-written summary
Zhonghan 3 nitrogen content decreased faster after heading than Wuxiangjing 99-8.
Oryza sativaVerbatim
e0“Compared with Wuxiangjing 99-8,Zhonghan 3 exhibited a faster decrease in N content after heading,smaller N accumulation in plants,greater proportion of N in leaves and grains and smaller in the culms and sheaths,higher N efficiency of matter production(at maturity) and grain yield production,greater N harvest index,and lower grain yield.”
t0“Rice”
Title
Effects of Cultivation Methods on Nitrogen Absorption and Use Efficiency of Upland and Paddy Rice
Jianchang Yang Zhongguo shuidao kexue 2005
Other claims from this paper (19)
- Intervention effect Zhonghan 3 grain yield was significantly lower under dry than submerged cultivation.
- Intervention effect Wuxiangjing 99-8 yield did not differ significantly between dry cultivation with plastic film mulching and MC.
- Intervention effect Bare cultivation gave the lowest yield for both rice cultivars.
- Intervention effect Plant nitrogen contents at heading were lower under PFMC than SC.
- Intervention effect Plant nitrogen contents at heading were lower under BC than SC.
- Intervention effect Plant nitrogen contents declined more slowly from heading to maturity under PFMC and BC.
- Observation Nitrogen absorption at heading and maturity ranked SC above PFMC above BC.
- Intervention effect Dry cultivation raised the nitrogen proportion in culms and sheaths relative to SC.
- Intervention effect Dry cultivation lowered the nitrogen proportion in grains relative to SC.
- Observation The nitrogen proportion in leaves differed between cultivars.
- Intervention effect Dry cultivation significantly increased nitrogen efficiency of matter production at heading relative to SC.
- Intervention effect PFMC gave the least nitrogen efficiency of matter production at maturity.
- Intervention effect Dry cultivation increased nitrogen efficiency of grain yield production relative to SC, except PFMC for Zhonghan 3.
- Intervention effect Dry cultivation increased nitrogen harvest index relative to SC.
- Observation Zhonghan 3 had smaller nitrogen accumulation than Wuxiangjing 99-8.
- Observation Zhonghan 3 had a greater nitrogen proportion in leaves and grains than Wuxiangjing 99-8.
- Observation Zhonghan 3 had a smaller nitrogen proportion in culms and sheaths than Wuxiangjing 99-8.
- Observation Zhonghan 3 had higher nitrogen efficiencies for matter and grain yield production than Wuxiangjing 99-8.
- Observation Zhonghan 3 had greater nitrogen harvest index but lower grain yield than Wuxiangjing 99-8.