双本插又叫双株栽、栽２片等，是把原来杂交水稻只栽１根（一粒谷秧）改为每窝栽２根苗（两粒谷秧）。从前几年杂交水稻验收测产中看出，制约我区水稻产量不高的主要因素，仍然是有效穗数不足。虽然经过大搞水稻模式栽培，进行拉绳定距、宽窄行条栽，使栽插密度有所增加，... Double inserted also called Shuang Zhuang, planted 2, etc., is the original hybrid rice planted only one (one Guanyang) changed to each nest planted 2 seedlings (two grain seedlings). The past few years, hybrid rice acceptance test found that restricting the rice yield in our region is not high main factor is still insufficient effective panicles. Although after intensive cultivation of rice mode, the distance between the drawstring, width and width of the planted planting, planting density has increased, ...