| 闫素云,周先艳,李进学,岳建强,赖新卜,杜玉霞,李丹萍.云南省柠檬主产区土壤肥力特征与评价[J].中国南方果树,2022,51(1): |
| 云南省柠檬主产区土壤肥力特征与评价 |
| Fertility Characteristics and Evaluation of the Mainly Lemon Producing Areas of Yunnan Province |
| 投稿时间：2021-06-09 修订日期：2021-06-09 |
| DOI：10.13938/j.issn.1007-1431.20210367 |
| 中文关键词: 云南 土壤肥力 柠檬 区域 海拔 有效养分 |
| 英文关键词:Yunnan soil fertility lemon area altitude available nutrients. |
| 基金项目:国家现代柑橘产业技术体系(CARS-27)；怒江特色柑橘产业提质增效适用技术集成与示范(202003AD150014)；云南柑橘产业发展战略咨询研究(2019YNZH2)第一 |
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| 中文摘要: |
| 土壤肥力在一定程度上决定了柠檬的产量和果实品质,为了探究云南省柠檬主要产区土壤肥力的特征,为柠檬种植园合理施肥提供理论依据。本研究对云南省5个州市的7个县(区)的20个柠檬主产区(乡镇)129个土壤样品进行分析测试,根据全国第二次土壤普查分级标准和Nemerow指数法评价不同主产区和不同海拔高度土壤肥力。结果表明：云南省7个县(区)柠檬采样区土壤综合肥力均达到Ⅰ级以上,土壤肥力总体较高,平均综合肥力指数为3.18,排名为元江县>施甸县>隆阳区>师宗县>澜沧县>陇川县>瑞丽市。单项肥力指数达到Ⅰ级(Pi≥1.7)17个,达到Ⅱ级(0.9≤Pi<1.7)30个,达到Ⅲ级(Pi<1.7)16个。在700~900m这一海拔区间土壤综合肥力最优,随着海拔的升高,土壤养分先下降后升高,海拔在1100~1300m为一个分水岭。 |
| 英文摘要: |
| Soil fertility determines the yield and fruit quality of lemons to a certain extent. In order to explore the characteristics of soil fertility in the main lemon producing areas in Yunnan Province, which can provide theoretical basis for rational fertilization of lemon planting garden. In this study, 129 soil samples from 20 mainly lemon producing areas (towns) in 7 counties (districts) of 5 prefectural regions of Yunnan Province were analyzed and tested. According to the grading standard of the second national soil survey and the Nemerow index method, the soil fertility of different mainly producing areas and different altitudes were evaluated. The results showed that the soil comprehensive fertility of the lemon sampling areas in 7 counties (districts) in Yunnan Province reached above grade I, and the soil fertility was generally higher. The average comprehensive fertility index was 3.18, ranking as Yuanjiang County > Shidian County > Longyang District > Shizong County > Lancang County > Longchuan County > Ruili City. There were 17 individual fertility index reaching level I (Pi≥1.7), 30 reaching level II (0.9≤Pi<1.7), 16 reaching level III (Pi<1.7). It was the best for the comprehensive fertility of soil in the range of 700~900m. With the increase of the altitude, the soil nutrients gradually decreased until 1100~1300m and then increased. |
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