１黄河冲积滩地的特点１．１土壤特点黄河故道与近河道处的冲积滩地，上层多为细沙壤土及砂土，砂质含量大，沙粒粗。土层深厚，质地细而均匀、疏松、耕作性能好、不怕涝。但有机质含量低，速效Ｎ、Ｐ肥缺乏，保水保肥力差，肥劲短。多半为半砂荒或砂荒地，草害严重。地下... 1 Features of the Yellow River alluvial land 1.1 Soil characteristics The alluvial land at the old course of the Yellow River and near the river is mostly sandy loam and sandy soil with sandy content and coarse grit. Deep soil, fine texture and uniform, loose, good farming performance, not afraid of waterlogging. However, low organic matter content, available N, P deficiency, poor water and fertilizer, fertilizer and short. Mostly for the half-sand shortage or sand wasteland, grass serious damage. underground...