垄作对寒地水稻根系的影响

Affect of Ridge Tilth on Roots Growth of Paddy Planted in Frigid Zone

通过垄作与平作两种栽培方式,对供试水稻材料空育131的根系生长及产量构成进行调查,发现相对于常规平作,在垄作条件下水稻根系生长环境得到改善,其水、气协调,根系长,下扎较深,根系吸收能力增强,尤其在后期有较多有活力根系,从而表明根系生长状况良好是垄作栽培产量较高的原因之一。

By using a japonica variety Kongyu 131 as materials, root growth characteristics of rice and yield composition were studied under ridge cultivation and conventional cultivation methods. The surroundings of rice root growing in ridge cultivation became better than growing in conventional cultivation methods, such as root growth and distribution, length, dry weight, and the ability of root absorption, especially more active root in late stage. It was showed that root growing in good state was one of reasons for higher rice yield.