贵州不同岩石背景土壤矿物与矿质养分的关系

摘要

The mineral nutrients of two different soils developed from different soil parent materials were determined to scientifically guide crop cultivation in different soils in Guizhou. The results showed that the soil developed from clastic rocks with higher feldspar and mica content in soil powder minerals and high chlorite content and lower kaolmite content in soil clay mineral, a lower weathering degree and relative abundant soil nutrients had strong sustained release capacity of mineral nutrient. However, the soil developed from carbonatite rocks with lower feldspar and mica content in soil powder minerals and lower chlorite content and higher kaolinite content in soil clay mineral, a higher weathering degree and relative poor nutrients had poor sustained release capacity of mineral nutrient.%为了更好地了解优质农作物生长与不同岩石背景土壤养分的关系,科学指导农业种植,叶两种不同岩石背景土壤中矿物与土壤主要矿质养分的关系进行研究.结果表明:碎屑岩背景区土壤粉粒矿物中长石、云母含量较碳酸盐岩背景区土壤中的高,土壤粘粒矿物中绿泥石含量较碳酸盐岩背景区土壤中的高,高岭石含量较低,土壤风化程度较低,持续释放矿质养分的能力较强,土壤养分相对充裕；而碳酸盐岩背景区土壤粉粒矿物中长石、云母含量较碎屑岩背景区土壤中的低.土壤粘粒矿物中绿泥石含量较碎屑岩背景区土壤中的低,高岭石含量较高,土壤风化程度较高.持续释放矿质养分的能力弱,土壤养分相对缺乏.