水稻大垄双行的栽培方式是:株距18厘米,大行距40厘米,小行距20厘米。大小行距间隔如右简图。大垄双行栽培的好处是:使水温提高2℃,地温提高1℃;使有效分蘖期延迟10天,单株最高有效分蘖达70穗、穗平均粒为150个;省种、省工、高产,采用这项新技术每亩可省种子3.5公斤,节省用工30%,节省 Rice wide ridge double line of cultivation methods are: spacing of 18 cm, 40 cm wide line spacing, small row spacing of 20 cm. The size of the line spacing as the right diagram. The benefits of big ridge double-row cultivation are as follows: increasing the water temperature by 2 ℃ and increasing the ground temperature by 1 ℃; the effective tillering stage is delayed by 10 days; the highest effective tillering height per plant is 70 ears and the average grain size per ear is 150; High yield, the use of this new technology can save 3.5 kg per mu seeds, saving 30% of labor, saving