期刊论文

Distribution Characteristics of Soil Medium and Micro Nutrients in Citrus Orchards in Hunan and Suitable Fertilization Strategies

中文

土壤

0253-9829

2020

52

02

287-293

10.13758/j.cnki.tr.2020.02.009

国家农业部柑橘产业体系项目（2017-2020）资助；

本校为第一机构

为了弄清湖南省柑橘园土壤中、微量养分的丰缺及其分布特征,并合理调控柑橘园土壤中、微量养分,采集了湖南省柑橘园主产区14个县共84个土壤样品,检测了土壤中、微量元素的含量状况。结果表明:湖南省柑橘园土壤有86.8%样点呈酸性或强酸性;56.1%样点有机质含量偏低;交换性钙、交换性镁含量较适宜柑橘生长,但分布不均衡,其中湘南56%的样点钙含量不足,湘西南53.6%样点钙含量不足和64.3%样点镁含量不足;有效硫、铁、锰含量均偏高,偏高的比例分别为80.8%、86.9%,64.3%;有效铜含量丰富,但分布不均衡,其中湘南和湘西南分别有76.9%和78.6%样点含量偏高;76.2%样点有效锌含量适宜;85.5%样点有效硼处于缺乏状...

In order to clarify the status and distribution of medium and micro nutrients in soils of citrus orchards in Hunan and to instruct the rational fertilization, 84 soil samples were collected from citrus orchards in 14 counties in Hunan, and the contents of medium and micro elements in the soil samples were measured. The results showed that 86.8% of soil samples were acidic or strongly acidic. 56.1% of soil samples were low in soil organic matter content. Soil exchangeable calcium and magnesium were more suitable for citrus growth, but the spatial distribution was imbalanced, and 56% and 53.6% o...