摘要
选取吉县0年、1年、6年、8年、11年和19年苹果园的土壤作为供试材料,分析土壤有机质含量的变化规律.研究结果表明:不同种植年限果园土壤有机质含量变化呈正态分布,且随种植年限增加,呈先下降后上升的趋势,距树干不同距离的土壤有机质含量变化均呈现这一趋势.
Soil samples were taken from apple orchards with different years of planting in Jixian. And changes of soil organic matter was anMysed. The results show that soil organic matter was the normal distribution. With the time of continuous cropping increasing, soil organic matter firstly declined and then increased,which also appears the trend in different distances from the trunk. Organic matter content is generally not high. So fruit growers should change fertilization management mode, which the investment of middle-aged orchard should be more and young orchard investment should be less.
出处
《山西师范大学学报（自然科学版）》
2013年第2期51-54,共4页
Journal of Shanxi Normal University(Natural Science Edition)
基金
"十一五"国家科技支撑计划重点项目(2008BADA4B01)
国家自然基金面上项目(30871483)
关键词
种植年限
苹果园
土壤有机质
planting years
apple orchards
soil organic matter
