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甜菜属直根系作物,根系庞大。土地耕层深厚、土壤肥沃、质地疏松,则有利于其根系发育,使根系密集层下移,增加块根产量。 多年来,黑龙江省甜菜产区通常采用的平翻耕法使土壤结构遭到破坏,耕层厚度也只能达到18—20厘米,并在耕层下面形成一坚硬的犁底层,严重影响土壤的通气透水性能,阻碍根系下扎,致使甜菜产、质量提高缓慢。深松耕法的出现,是耕作制度的重要改革,深松耕法可以作到打破犁底层,增加耕层厚度(可达30厘米左右);分层深松,不乱土层;间隔深松,虚实并举。采用深松耕法可为甜菜增产创造良好的条件。
Beet is a straight root crop, large roots. Deep plowed land, fertile soil, loose texture, it is conducive to its root development, so that the roots of dense down, increase tuber yield. For many years, the flat tillage method commonly used in sugar beet producing areas in Heilongjiang Province has damaged the soil structure, and the thickness of tillage can only reach 18-20 cm, forming a hard plow bottom below the tillage layer that seriously affects the soil Ventilation and water permeability, hinder the root bar, resulting in sugar beet production, quality improvement slow. The emergence of the deep plowing method is an important reform of the farming system. The deep plowing method can be used to break the plow bottom and increase the thickness of plow layer (up to about 30 cm); stratified subsoiling, , Actual situation simultaneously. Deep plowing can create good conditions for sugar beet production.