Fallow, in agricultural terms, is not to make the land barren, but to let it "recuperate" and combine land cultivation to improve and consolidate grain productivity. In the meantime, we should also pay attention to the management and protection of cultivated land to prevent soil damage such as soil erosion.
The fallow system can not only make the cultivated land that is too tense and tired to farm and live, but also restore the ecology; It can also improve the corresponding problems in the soil, enhance the stamina of agricultural development, and realize the real "storing grain in the ground". In 20 18, 43,000 mu of cultivated land in three counties of xiong'an new area was fallow, and each mu was subsidized to 500 yuan.
Sometimes fallow doesn't necessarily mean stopping farming for a year, but it may be many years. In the past few years, we will go to other land for farming until the land returns to fertility, which is also called crop rotation.
Different crops are planted in turn in the same field in different seasons and years, or corn seed combination is planted after wheat is returned to the field. For example, soybean → wheat → corn, which is a single-season rotation during the year; In the case of multiple cropping for more than one year, there are both annual rotation and annual crop replacement, such as green manure-rice-rice → rape-rice → wheat-rice-rice rotation in the south, which is composed of different multiple cropping methods, so it is also called multiple cropping rotation.