不同岩性土体对农作物生长的影响

The effect of soils from different parent rocks on crops.

在７种不同岩性发育的土体上栽植小麦、玉米试验，结果表明：不同岩性土体上小麦、玉米的生长有明显差异；以石灰质白云岩和石英砂岩发育的土体上的小麦、玉米生长为好，而以煤系砂页岩上生长最差。本研究还通过与林木生长的对比，对南方山区不同岩性的荒山进行合理利用及农林复合系统的应用提出了建议。

The crops(wheat and maize) were planted in 7 solis from different parent rocks. The results showed that there was significant effect of soils on the crops;the crops grew well on soils from quartzite and limestone, but poor on sandy and shale. Compared with the same study about trees, this paper presented a suggestion of rational utilization and agro-forestry system on hills with different parent rocks.