摘要
采用盆栽试验,研究含腐植酸风化煤对镉(Cd)污染土壤蔬菜系统,土壤理化性质以及小白菜生理指标的影响。结果显示,含腐植酸风化煤对Cd污染土壤中全氮含量影响不明显;但可以增加速效磷含量和根系阳离子交换量。活化的含腐植酸风化煤可以增加速效钾含量;更有利于增大SPAD值。因此含腐植酸风化煤能改善Cd污染土壤理化性质,促进植株健康生长,以活化含腐植酸风化煤为佳。
Pot experiment was conducted to study the effects of the weathered coal including humic acid on the soil physicochemical properties and the physiological indexes of Chinese cabbage under cadmium （Cd） pollution in soil-vegetable system. The results showed that, under Cd stress, the weathered coal including humic acid had not ob- vious effect for the total nitrogen content, but could increase the available hosphorus content, and improve the cation exchange capacity of the root. Activation of the weathered coal including humic could increase the available potassium content, and be more conducive to the increase of SPAD. Therefor the weathered coal including humic acid could im- prove soil physicochemical properties of the Cd contaminated, promote the growth of plant health, and the activated weathering coal including humic acid was preferred.
出处
《腐植酸》
2017年第5期26-34,共9页
Humic Acid
基金
国家自然科学基金项目(项目编号31370514)
山东省重点研发计划"新型土壤调理剂关键技术研发与应用"(项目编号2015GGH310001)
山东省自主创新专项"新型多功能微生物肥料研制"(项目编号2014ZZCX07302)
关键词
腐植酸
风化煤
小白菜
土壤理化性质
镉
humic acid
weathered coal
Chinese cabbage
soil physicochemical properties
cadmium
