摘要
[目的]分析鲁西南大蒜主产区土壤养分现状及其变化趋势,优化大蒜养分管理技术。[方法]2009-2018年,连续10年对鲁西南大蒜主产区金乡县蒜田土壤进行定位监测。[结果]2018年鲁西南蒜区土壤养分总体特征:弱碱性土壤,有机质含量偏低,碱解氮含量中等,有效磷含量较高,速效钾含量偏高。2009-2018年土壤养分变化趋势:弱碱化现象普遍发生;土壤有机质含量快速提高,但仍有很大提升空间;碱解氮、有效磷和速效钾平均含量均呈增高趋势,其中有效磷和速效钾出现盈余和匮乏并存现象。[结论]建议今后鲁西南蒜区施肥原则调整为"控氮、稳磷、减钾",重视酸性、生理酸性肥料或腐殖酸类肥料的使用,有机肥施用仍需大力推广。
[Objective]To optimize the nutrient management technology through the analysis of the current situation and change trend of soil nutrient in the garlic area of Southwest of Shandong Province.[Method]From 2009 to 2018,a ten-year soil monitoring data study was conducted.[Result]The genera soil characteristics from the garlic area were as follows:weakly alkaline,low organic matters content,medium available nitrogen content,high available phosphorus and potassium content.From 2009 to 2018,the change trend of soil nutrient in the garlic area of Southwest of Shandong Province were as follows:the alkalization occurred widespread,organic matters content increased rapidly but still had much room for improvement,the average content of available nitrogen increased year by year,abundance and lack of available phosphorus and potassium began to coexist.The alkalization occurred widespread.Organic matters content increased rapidly but still had much room for improvement.The average content of available nitrogen,phosphorus and potassium were showed as heightening tendency.Abundance and lack of available phosphorus and potassium began to coexist.[Conclusion]We suggested that the fertilization principle adjusted to control nitrogen,maintain phosphorus and lower potassium.For the future we should attach importance to organic fertilizer acid fertilizer,physiological acid fertilizer or humic fertilizer.Organic fertilizer should be vigorously promoted even further.
作者
李晶
殷碧秋
刘振富
陈宪信
陈亮
徐保民
王乃建
LI Jing;YIN Bi-qiu;LIU Zhen-fu(Jining City Soil Fertilizer Station,Jining,Shandong 272000;Jinxiang County Soil Fertilizer Station,Jinxiang,Shandong 272200)
出处
《安徽农业科学》
CAS
2020年第7期172-175,共4页
Journal of Anhui Agricultural Sciences
关键词
土壤养分
现状
变化趋势
Soil nutrient
Current situation
Change trend
