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中耕对松土、保墒、灭草,促进甜菜根系发育有很好的作用。目前甜菜生育期中耕多在封垅前结束,也有个别单位封垅后进行一次中耕或追肥的。甜菜封垅后中耕在栽培技术上有争论,一种意见认为甜菜封垅后中耕会伤根,压叶,影响光合生产效应,导至含糖率降低,块根减产。另一种意见认为,甜菜封垅后中耕,对浇灌农业区有特殊意义。我区甜菜封垅期一般为6月中下旬,根据甜菜生育特点,6—8月中旬,茎叶、块根增长最迅速。8月下旬至10月上旬,块根增长缓慢,含糖率增加最快。从封垅至10月上旬,
Cultivation on loose soil, soil moisture, weeds, promote the development of beet root has a good effect. At present, most of the sugarbeet growing period is over before the closure, and there are individual units that carry out cultivation or top dressing after they are sealed. Cultivation of sugar beet after the closure of the cultivation of technical controversy, one suggestion that the sugar beet after planting will hurt roots, nip, affecting the photosynthetic production effect, leading to reduced sugar content, root yield reduction. Another view is that sugar beet cultivation after the closure of plow, irrigation of agricultural areas have special significance. Beet seal in my area is generally late in late June, according to the characteristics of sugar beet growth, 6-8 months, stems and leaves, the fastest growing roots. From late August to early October, root tuberous growth slowed, and sugar content increased the fastest. From the seal to early October,