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浙江省大部分稻田夏、秋季以栽培水稻为主,冬季除部分休閑外,一般都种植一季冬作,这样就形成了冬作(包括綠肥、油菜、蚕豆、豌豆、大小麦)—水稻(双季稻或单季稻)常年水旱交替的复种方式,它对更新土壤环境有很大作用。不同冬作收种季节有所不同,对土壤肥力也有不同的影响。为了調节劳力,平衡地力,各地又有将不同冬作进行相互轮种并适当地配置水稻类型的习慣。因此,本省稻田是以水稻为中心,各作轮种为基础,构成各种轮作复种制度。为了探明稻田各种轮作
Most of the paddy fields in Zhejiang Province are dominated by rice cultivation in summer and autumn, and winter seasons are generally planted in addition to some leisure activities. Winter crops such as green manure, rape, broad bean, pea, wheat and wheat - Quaternary rice or single cropping rice) Alternate perennial water and seed multiplication method, it has a great role in the regeneration of soil environment. Different winter harvest season is different, have different effects on soil fertility. In order to adjust the labor force and balance the earth’s force, there is another habit that different winter crops are rotated each other and the rice type is properly configured. Therefore, the province’s paddy field is based on rice, each for rotation, constitute a variety of crop rotation system. In order to identify a variety of crop rotation