广西横县茉莉花连作田土壤改良与产量关系研究

发布时间：2018-05-06 09:35

本文选题：茉莉花 + 连作田　；参考：《西南农业学报》2017年01期

【摘要】：为探索广西茉莉花主产区横县连作田土壤理化性状及茉莉花产量影响因素,形成土壤改良有效方案,为茉莉花低产田改造提供技术支持。对横县连作10年以上茉莉花田的土壤理化性状进行调查,筛选土壤改良方案并分析土壤理化性状与产量的相关性。结果表明,所调查土壤p H值最高4.87,最低3.82,土壤容重1.45~1.48 g/cm3,土壤有机质、速效氮含量较低,而速效磷及速效钾含量较高。百花重与p H值、电导率呈极显著正相关;p H值与电导率呈显著负相关;电导率与速效钾呈极显著正相关;土壤容重与毛管含水率呈显著负相关;土壤容重与速效磷呈极显著负相关。综合产量及土壤改良效果,最佳改良方案为A1B2C2,较改良前,土壤p H值提高了0.31个单位,饱和含水率和总孔隙度分别提高5.46和4.50个百分点,有机质提高3.00 g/kg,容重降低0.11 g/cm3,百花重达33.50 g。
[Abstract]:In order to explore the physical and chemical properties of soil and the factors influencing the yield of jasmine in Hengxian continuous cropping field of Guangxi province, an effective scheme of soil improvement was formed, which provided technical support for the transformation of low yield field of jasmine. The soil physical and chemical properties of Jasmine field in Hengxian County for more than 10 years were investigated, and the soil improvement schemes were selected and the correlation between soil physical and chemical properties and yield was analyzed. The results showed that the soil pH value was the highest 4.87, the lowest 3.82, the soil bulk weight 1.45 ~ 1.48 g / cm ~ 3, the soil organic matter and available nitrogen content was lower, and the available phosphorus and potassium content was higher. There was a significant positive correlation between 100 flower weight and pH, a significant negative correlation between conductivity and conductivity, a very significant positive correlation between conductivity and available potassium, a significant negative correlation between soil bulk density and capillary moisture content, a significant negative correlation between conductivity and available potassium, and a significant negative correlation between soil bulk density and capillary moisture content. Soil bulk density was negatively correlated with available phosphorus. The optimum improvement scheme was A1B2C2, the pH value of soil increased 0.31 units, the saturated water content and total porosity increased 5.46% and 4.50%, respectively. The organic matter increased by 3.00 g / kg, the bulk density decreased by 0.11 g / cm ~ 3, and the weight of a hundred flowers reached 33.50 g.
【作者单位】：广西农业科学院花卉研究所;
【基金】：广西农业科学院基本科研业务专项(2015YT91) 国家级星火计划项目(2014GA790015) 广西农业重点科技计划项目(201411)
【分类号】：S685.16;S156

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