高粱苗期扒根,是豫东群众在长期栽培过程中得出来的一条经验。淮北、豫北以及河北省部分高粱产区,群众中也有“一遍扒,二遍埋,三遍封成个凤凰台”的农谚。为了总结群众经验,我们于1963—1964年在开封进行了扒根试验,现将结果介绍如下。 1963年采用开封黄罗伞品种,4月9日播种,5月15日定苗扒根(仅留一条种子根,群众称“老根”),以不扒根作对照,重复两次,6月5日第二 Roots of sorghum seedling, is the people in eastern Henan in the long-term cultivation process derived from an experience. Huaibei, northern part of Hebei and Hebei Province, part of the sorghum producing areas, the masses also have “over and over again, buried twice, three times sealed into a Phoenix Taiwan” farming proverb. In order to summarize the experience of the masses, we conducted the root-trial in Kaifeng in 1963-1964, and the results are as follows. 1967 Kaifeng yellow Luo umbrella varieties, sown on April 9, May 15 Dingmiao root (only to leave a seed root, the masses called “old root”), not to root for the control, repeated twice, in June Second on the 5th