Abstract
Looking at the production and yield of upland rice in Japanese agriculture, data from 2023 shows that the national harvest was 835 tons, the cultivated area was 401 hectares, and the yield per 10a was highest in Ibaraki at 214 kilograms. These figures show that upland rice production in Japan has tended to be stable in recent years. On the other hand, the fact that Ibaraki Prefecture recorded a high yield per 10 ares suggests that efficient agricultural techniques and optimized land use are being developed in the region. Moreover, the maximum cultivated area was 401 hectares, suggesting that upland rice production is widespread. In this way, upland rice production in Japan is supported by high yields and efficient production techniques, but is also characterized by regional differences in characteristics and techniques.
Upland rice yield (main data).
Upland rice yields in Japan have changed between 1883 and 2023. The peak was in 1959, when the prefecture recorded 343 kilotons, but it has since decreased. Current harvest yields in prefectures are 560% of their peak levels and have been declining for the past few decades. This is likely due to the effects of agricultural modernization and urbanization. Population migration to cities and a decrease in agricultural labor force are affecting upland rice production. Agricultural policies and climate change also affect yields. Taking these factors into account, upland rice yields in Japan have undergone historic changes and are currently on a downward trend.
The maximum is 343kt[1959] of Japan, and the current value is about 243m%
Upland rice harvest volume (by prefecture).
The latest data on Japan’s upland rice harvest for 2023 shows that Ibaraki Prefecture recorded the highest yield overall, at 640 tonnes. This is the highest value compared to past data, indicating that Ibaraki Prefecture’s upland rice production is outstanding. Ibaraki Prefecture is a rich agricultural region, and one of the reasons for this is thought to be that its fertile soil and suitable climatic conditions make it ideal for cultivating upland rice. It is also possible that improvements in agricultural technology and cultivation methods, as well as improved varieties, have contributed to increased production. On the other hand, since it is not clear what the production volumes are in other regions, it suggests that Ibaraki Prefecture tends to be particularly good, but more detailed information is needed regarding overall trends. The results showed that Ibaraki Prefecture was the top in upland rice harvest volume, but more detailed data is needed to compare with other regions and understand long-term trends.
The maximum is 640t of Ibaraki, the average is 119t, and the total is 831t
Area cultivated with upland rice (main data).
Japan’s upland rice cultivation area has fluctuated between 1883 and 2023. The peak was in 1960, when the prefectures and prefectures recorded 184,000 hectares, but it has since declined. The current cultivated area of prefectures is 346% of its peak level and has been declining for the past few decades. This decline is due to factors such as urbanization and agricultural mechanization. Conversion of agricultural land to urban areas and a decline in the agricultural labour force have contributed to the decline in the area under cultivation. Changes in agricultural policies and fluctuations in domestic and international market demand also have an impact. Due to these factors, the area under upland rice cultivation has been declining in the long term. On the other hand, different geographical conditions and agricultural characteristics of each region also have influences, so different trends may be observed in areas other than prefectures. As a result, Japan’s upland rice cultivation area has declined over the past few decades, with urbanization and structural changes in agriculture being the main factors behind this.
The maximum is 184kha[1960] of Japan, and the current value is about 218m%
Upland rice cultivation area (by prefecture).
The latest data for 2023 shows that the largest overall area of upland rice cultivation in Japan is in Ibaraki Prefecture at 299 hectares, which is the current maximum value. One reason for this is that Ibaraki Prefecture has fertile soil and suitable climatic conditions for cultivating upland rice. It is also possible that advances in agricultural technology and the adoption of more efficient cultivation methods have contributed to the increase in cultivated area. On the other hand, since it is not clear what the cultivated area is in other regions, it suggests that Ibaraki Prefecture tends to be particularly good, but more detailed information is needed to understand overall trends. Additionally, factors such as urbanization and a declining agricultural labor force may be affecting acreage in other regions. The results showed that Ibaraki Prefecture ranks first in terms of upland rice cultivation area, but more detailed data is needed to compare with other regions and understand long-term trends.
The maximum is 299ha of Ibaraki, the average is 57.1ha, and the total is 400ha
Upland rice yield per 10a (by prefecture).
According to the latest data from 2023, the yield per 10a of upland rice in Japan is 214 kilograms in Ibaraki Prefecture, and the overall average is 132 kilograms. Ibaraki Prefecture had the highest yield overall, which suggests that the region has efficient agricultural techniques and production management, enabling it to achieve high yields. On the other hand, although the overall average yield is lower than the Ibaraki Prefecture record, it still indicates that a sufficient harvest was achieved. With a total yield of 924 kilograms, upland rice production in Japan is relatively stable, and advances in agricultural technology and improved varieties are thought to have contributed to increased yields. In addition, yields per 10 ares vary by region, reflecting factors such as climatic conditions and soil conditions. Ibaraki Prefecture’s high yields are seen as a result of regional characteristics and production techniques, but overall it can be said that Japan’s upland rice production is maintaining a stable level. It is expected that more efficient production will continue to be achieved through technological developments and the promotion of sustainable agriculture.
The maximum is 214kg of Ibaraki, the average is 132kg, and the total is 924kg
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