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旱直播水稻作为一种重要的轻型栽培方式,在苏中地区的水稻栽培中已占有较大比重。随着农业机械化的发展和劳动力成本的提高,旱直播水稻面积还会进一步扩大。由于旱直播水稻田早期不浸水,造成田间杂草出土早、种类多、数量大,杂草发生数量显著高于移栽、抛栽和机插秧水稻田。待
As an important light-cultivation method, direct-seeded rice has occupied a large proportion of rice cultivation in central Jiangsu Province. With the development of agricultural mechanization and labor costs, the area of dry-sowing rice will be further expanded. Due to the fact that dry direct seeding rice fields were not flooded in the early stage, early weeds were found in the field, with many species and large numbers. The incidence of weeds was significantly higher than that of transplanting, throwing and transplanting paddy fields. Wait