摘要
当前在新修梯田上作试验,由于缺乏田间设计规范,成果误差偏大,影响推广应用。通过梯田土壤空白试验,证明新修梯田土壤肥力呈现团块状分布规律,这与一般农地土壤肥力分布具有明显的区别。提出新修梯田的田间设计必须针对肥力分布特点,注意控制试验小区的面积、形状、重复次数、排列方法以及产量计算等方面,以减少误差,提高试验质量。
Due to insufficient specifications for field design, the result obtained from experiments of newly built terraces has a bigger error, effecting popularization and application. Through blank experiment of terraces. it shows that the soil fertility of newly built terraces is distributed in a crumby shape which is remarkably different than that of the ordinary farm soil. Thus, the paper has put forward that the field design of newly built terraces must be aimed at the characteristics of fertility distribution, and pay attention to the control of a plot area shape, number of duplication, way of arrangement and output calculation for decreasing errors and increasing experimental quality.
出处
《人民黄河》
CAS
北大核心
1992年第7期35-37,共3页
Yellow River
关键词
水平梅田
田间试验
水土保持
terraces, technology of test, blank experiment
