Claim · model-written summary
The annual growth rate of rice planting area decreased significantly since the 1960s.
- Taxon
- rice
Oryza sativae0 - Outcome
- annual growth rate of rice planting areae5
- Direction
- decreasede5
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“An approach to increase rice yield and production was discussed”
e5“Since 1960s of the 20th century, the annual growth rate of rice planting area decreased significantly”
Title
Analysis of status and constraints of rice production in the world.
Defeng Zhu; Cheng ShiHua; Zhang Yu-ping; et al. Zhongguo nongye Kexue 2010
Other claims from this paper (19)
- Observation Rice planting area increased by 32% from 1961 to 2006.
- Observation Rice yield increased 1.21 times, mainly due to semi-dwarf varieties and hybrids.
- Observation Rice production increased 1.92 times.
- Observation Planting area increase contributed 27% of the increase of rice production.
- Observation Yield increase contributed 73% of the increase of rice production.
- Observation The annual growth rate of rice yield was 2.58% in the 1980s.
- Observation The annual growth rate of rice yield was 0.98% in the 1990s.
- Observation The annual growth rate of rice yield was 1.16% after 2000.
- Observation The annual growth rate of rice production was 2.73% in the 1980s.
- Observation The annual growth rate of rice production was 1.48% in the 1990s.
- Observation The annual growth rate of rice production was 0.88% after 2000.
- Observation The decrease in annual growth rate of rice area and yield resulted in a decrease in the annual growth rate of rice production.
- Observation More frequent pest damage and natural disasters limit rice production.
- Observation Low contribution of rice production technology to yield increase limits rice production.
- Observation Yield is declining in the multiple-cropping system, limiting rice production.
- Observation Low production profit limits rice production.
- Recommendation The authors recommend breeding of high-yielding varieties and hybrids and practice of new Africa rice varieties in Africa to increase global rice yield.
- Recommendation The authors recommend integrated rice management technology to reduce the yield gap.
- Recommendation The authors recommend mechanized rice production technology and enhanced policy support for rice production.