Soil fertility characteristics and strategy of fertilization for the typical grape-growing district in northern Jiangsu Province: a case study of Guannan County

• Published in: Journal of agricultural resources and environment Vol. 40; no. 4; p. 782
• Main Authors: Ma Xiaochi, Ruonan, Hei, Yao, Yi, Han, Feng, Yang, Guiting, Guo Dejie, Tang Maofeng, Luo Jia, Ma, Yan
• Format: Journal Article
• Language: Chinese
• Published: Tianjin Journal of Agricultural Resources and Environment (JARE) 01.01.2023
• Subjects: Alkaline soils; Calcium ions; Fertilization; Grapes; Magnesium; Nitrogen; Organic fertilizers; Organic matter; Organic soils; pH; Principal components analysis; Soil chemistry; Soil fertility; Soil nutrients; Soil organic matter; Soil pH; Vineyards; Wineries & vineyards; Jiangsu China; China
• ISSN: 2095-6819; 2095-6819
• DOI: 10.13254/j.jare.2022.0517

了解葡萄种植集聚区土壤肥力特征是有效制定土壤与精准施肥管理措施的重要前提。本研究选取苏北灌南县为研究对象，对55家设施葡萄园非施肥区和施肥区土壤主要肥力指标进行了测定，运用主成分分析与隶属度函数相结合的模糊综合评价法，对土壤肥力特征进行了综合分析与评价。结果表明，葡萄园施肥区土壤综合肥力整体处于较高水平，其中有机质和全氮的指标权重最大，分别为18.98%和18.02%，是影响葡萄园土壤肥力的关键因子。与非施肥区土壤相比，施肥区有14.55%和10.91%的土壤分别存在有机质和全氮含量降低现象。研究区土壤pH均呈碱性，是限制土壤肥力的主要因子。葡萄园本底有效磷含量普遍偏低，均值为19.51 mg·kg-1，而速效钾、交换性钙、交换性镁含量均处于较高水平，均值分别为364.55、12 346.52 mg·kg-1和816.66 mg·kg-1。施肥区土壤有效磷含量处于较高水平，均值为69.87 mg·kg-1，但仍有20.00%的土壤有效磷含量处于中等及以下水平。研究表明，苏北设施葡萄园应注重土壤酸碱度的调节及磷肥的适量补充，控制钾、钙、镁肥的投入，合理增施有机肥。Understanding the characteristics of soil fertility in the typical grape-growing district is a prerequisite for developing efficient soil and fertilization management strategies. The soil fertility characteristics in non-fertilization and fertilization areas of 55 protected vineyards in Guannan County northern Jiangsu Province were analyzed and comprehensively evaluated by using the fuzzy comprehensive evaluation method, which combined principal component analysis with membership function approach. Results revealed that the integr