摘要
通过连续施用土壤调理剂硅钙钾镁肥对茄子品质和土壤性状的影响研究,了解土壤调理剂硅钙钾镁肥的合理用量,为科学施用提供理论依据。结果表明,施用硅钙钾镁肥能提高茄子产量,提高茄子Vc含量。随硅钙钾镁肥用量的增加,茄子本身的Ca、Mg含量总体上变化趋势并不明显。随着硅钙钾镁肥用量的增加,土壤pH、有效磷、速效钾、交换性钙和交换性镁含量不断增高,用量在1 500kg·hm^(-2)显著高于对照处理;而硅钙钾镁肥的施用对土壤有机质和碱解氮含量影响无显著性差异。考虑到成本因素,土壤调理剂硅钙钾镁肥以750~1 125kg·hm^(-2)的用量对茄子的增产效果和品质最好。
Soil conditioners are frequently applied to remedy acidified soils. The silicon-calcium-potassiummagnesium(Si-Ca-K-Mg)fertilizer is a new product in the category.Effects of continuous application of the fertilizer on the quality of the eggplants grown on the soil as well as the properties of the soil were studied.The results showed that the application increased the yield and Vc content of the vegetable,but no significant effect on Ca or Mg with the increased amounts of the fertilization.On the other hand,the application of increasing Si-Ca-KMg fertilizer increased the pH,available P,available K,exchangeable Ca and exchangeable Mg in the soil,and peaked when fertilizer 1 500kg·hm^(-2) was used.Meanwhile,the organic matters and alkali soluble N did not differ from those in control.Taking both yield and quality of eggplants as well as cost of fertilization into consideration,an Si-Ca-K-Mg fertilizer application rate ranging from 750kg·hm^(-2) to 1 125kg·hm^(-2) was recommended.
出处
《福建农业学报》
CAS
北大核心
2017年第7期768-773,共6页
Fujian Journal of Agricultural Sciences
基金
复合肥料国家地方联合工程研究中心项目(2013)
土壤与农业可持续发展国家重点实验室(中国科学院南京土壤研究所)开放基金(Y412201437)
福建省科技计划项目--省属公益类基本科研专项(2015R1022-8)
关键词
土壤调理剂
茄子
VC
土壤性状
硅钙钾镁肥
soil conditioner
eggplant
Vc
soil properties
silicon-calcium-potassium-magnesium fertilizer
