Abstract
Purpose: Rice is an important staple crop cultivated in more than 163 million ha globally. Although information on the distribution of global rice production is available by country and, at times, at subnational level, information on its distribution within a year is often lacking in different rice growing regions. Knowing when and where rice is planted and harvested and the associated production is crucial to policy and decision making on food security. To examine seasonal and geographic variations in food supply, we developed a detailed rice crop calendar and linked it with disaggregated production data. Approach and methods used: We compiled from various sources detailed data on rice production, and planting and harvesting dates by growing season. To standardize the production data to the same period, we adjusted the production values so that the totals for each country will be the same as those of FAO for 2010-2012. We then linked data on rice production with the corresponding crop calendar information to estimate production at harvest time by month then we calculated totals for each country and region. Key results: The bulk of global annual harvests of rice is from September to November, corresponding with the harvest of the wet season rice in Asia and Africa. Total rough rice production during those peak months exceed 381 million tons, which account for about half of annual global rice output. Production is lowest in January with only 11 million tons in total. Regional production is lowest in Asia in January, Americas in December, Africa in July and rest of the world in May. Synthesis and Applications: A globally complete and spatially detailed rice crop calendar is important to crop growth simulation modelling and assessment of vulnerability of rice areas to biotic and abiotic stresses. Linked to production estimates, it can be used in analyzing spatial and seasonal production trends to better assess and predict price fluctuations , and to mitigate potential significant shortfalls in food production at certain times of the year.
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Claims 9
Claim · model-written summary
Most global rice harvest occurs from September to November.
- Taxon
- rice
Oryza sativae0 - Outcome
- global annual harvests of ricee0
- Direction
- bulke0
- Value
- September to Novembere0
- Setting
- Asia and Africae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The bulk of global annual harvests of rice is from September to November, corresponding with the harvest of the wet season rice in Asia and Africa.”
Claim · model-written summary
Peak-month rough rice production exceeded 381 million tons.
- Taxon
- riceOryza sativae0
- Outcome
- rough rice productione0
- Direction
- exceede0
- Value
- 381 million tonse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Total rough rice production during those peak months exceed 381 million tons, which account for about half of annual global rice output.”
Claim · model-written summary
Peak-month production was about half of annual global rice output.
- Taxon
- riceOryza sativae0
- Outcome
- annual global rice outpute0
- Value
- about halfe0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Total rough rice production during those peak months exceed 381 million tons, which account for about half of annual global rice output.”
Claim · model-written summary
Global rice production was lowest in January, at 11 million tons.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Production is lowest in January with only 11 million tons in total.”
t0“Rice”
Claim · model-written summary
Regional rice production was lowest in Asia in January.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Regional production is lowest in Asia in January, Americas in December, Africa in July and rest of the world in May.”
t0“Rice”
Claim · model-written summary
Regional rice production was lowest in Americas in December.
- Taxon
- RiceOryza sativat0
- Outcome
- Regional productione0
- Direction
- loweste0
- Qualifier
- Decembere0
- Setting
- Americase0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Regional production is lowest in Asia in January, Americas in December, Africa in July and rest of the world in May.”
t0“Rice”
Claim · model-written summary
Regional rice production was lowest in Africa in July.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Regional production is lowest in Asia in January, Americas in December, Africa in July and rest of the world in May.”
t0“Rice”
Claim · model-written summary
Regional rice production was lowest in rest of the world in May.
- Taxon
- RiceOryza sativat0
- Outcome
- Regional productione0
- Direction
- loweste0
- Qualifier
- Maye0
- Setting
- rest of the worlde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Regional production is lowest in Asia in January, Americas in December, Africa in July and rest of the world in May.”
t0“Rice”
Claim · model-written summary
A detailed rice crop calendar was linked with disaggregated production data.
- Taxon
- riceOryza sativae0
- Outcome
- detailed rice crop calendare0
- Comparator
- disaggregated production datae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“we developed a detailed rice crop calendar and linked it with disaggregated production data”