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Due to the postwar development policy, cabbage production developed as a pillar of agricultural management, and in 1966 it became a designated vegetable production area for summer and autumn cabbage. Since then, the area of cultivated land has expanded due to the implementation of national and prefectural reclamation pilot projects, and it has gained fame as a major cabbage producing area nationwide. In recent years, it seems that agricultural management is being threatened due to a growing obstacle caused by continuous cropping of cabbage. For this reason, by utilizing the uncultivated land located on the left bank of the Agatsuma River, which runs through the central part of Tsumagoi Village, and expanding the management scale with 404 ha of agricultural land development, continuous cropping obstacles due to the establishment of a crop rotation system. The state-run Tsumagoi Agricultural Land Development Project was implemented to contribute to the stability of agricultural management by improving the quality and stable supply of cabbage and forming the production area of other crops.
Since it is a village with a lot of rain every year, it seems that it is suitable for growing cabbage that needs a lot of water. In addition, the altitude is high and the temperature difference between morning and night makes it sweet and delicious, and thanks to the morning dew on the plateau, it seems that watery cabbage can be made. Surrounded by volcanoes such as Mt. Asama, well-drained andosol (base material is derived from volcanic ash, H3PO4 absorption coefficient is high, volume weight is small, and light soil) that contains volcanic ash is in the field. Many seem to be suitable for cabbage.
It seems that the seedlings that have just been planted often die due to low temperatures or dryness, or are washed away by heavy rain. In addition, cabbage that has been punctured or damaged due to the hail falling just before harvesting cannot be shipped. I hear that there are many natural enemies because the leaves of this excellent vegetable are soft and sweet. There are many pests and vermin such as diamondback moth (diamondback moth), deer, and wild boar. According to the website of the Ministry of Agriculture, Forestry and Fisheries of Japan, which was updated in June 2022, as a result of examining the whole of Japan, the damage to agricultural products caused by wild birds and beasts was about 16.1 billion yen in 2022, and the damage amount is still at a high level. , It is also a decline in farming motivation, and it seems that it has a more serious effect than it appears in the figures.