| In the history of China's agriculture, the song dynasty is a period of great changes in the southern rice to become the country's largest food crop yield, mike officially beyond the first food corn become the north. Song of the MaiSu upland crops such as south and then formed various rotation system, north and southern hills and dry land reclamation, land utilization of waterlogging song dynasty food production progress, and these are inseparable from the development of the song dynasty crops varieties. In the song dynasty, the rapid development of crop variety, with rice, for example, before the song dynasty dynasty of rice varieties, much but more than 20, but to achieve more song dynasty, only 273 introducing accounted for city in southern song dynasty rice, when at least 18 has derived varieties. The emergence of new varieties of crops for expanding at that time, the amount of arable land, improving yield meaningful. And in northern song dynasty upland crops such as wheat, corn, beans, etc, in the song dynasty, the promotion of government in the southern widely planted. MaiSu from southern song dynasty, but also promote the change of farming system, such as wheat crop rotation, MaiDou rotation in rotation systems appear, mature, greatly enriched the southern farming methods. Through the research of crop variety of song dynasty, for the formation of the song dynasty various rotation system, perfecting the process is more clear understanding. The north and south song dynasty crops, also influence north-south communication for the development of catering culture of song dynasty, and after the Chinese food culture is unceasingly rich meaning. The early yuan dynasty flax and cotton cultivation, boosting the interweavement of ancient Chinese dress culture a transformation, cotton begun to replace the linen cloth the main become the Chinese. Anyhow, through the study of crop variety of song dynasty, we can in song dynasty in economy, culture of a series of problems have more deeply. |
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