soil analysis The use of rapid chemical analyses to determine the fertility status of a soil. It is used to identify those nutrients or substances that are present in either insufficient or excessive quantities for optimum plant growth. Analyses are also used to monitor increases or decreases in soil fertility over time(快速化学分析来确定土壤肥力状况。它是用来识别植物最佳生长时那些营养物质目前不足或过量。分析还用于监测随着时间的推移土壤肥力的增减。)
