摘要
肥料增效物质对提高复合肥肥效具有重要作用.研究褐藻寡糖、硝化抑制剂、微量元素添加到复合肥中对菜心品质及养分吸收的影响.结果表明:在添加成本相同(100元/t)条件下,将增效物质包裹于复合肥表面作基肥施用时,复合肥+微量元素+褐藻寡糖处理的菜心生物量最高,单株干质量为4.30 g,显著高于其他处理;复合肥+微量元素+褐藻寡糖处理的菜心品质和氮、磷、钾养分吸收利用率最高.试验条件下褐藻寡糖和微量元素是复合肥较好的增效物质.
Abstract
Fertilizer synergy substances play an important role in improving the efficiency of compound fertilizers.The effects of compound fertilizer added with brown algae oligosaccharides,nitrification inhibitor and trace elements on the quality and nutrient absorption of Chinese cabbage are investigated.The results show that under the same cost of addition(100 RMB Yuan per ton),when the synergy substances are wrapped on the surface of the compound fertilizer applied as the base fertilizer,the highest biomass of Chinese cabbage is obtained under the treatment of compound fertilizer plus microelements plus brown algae oligosaccharides,under this treatment,the dry weight of a single plant is 4.30 g,which is significantly higher than other treatments;Chinese cabbage with better quality and higher N,P,K uptake efficiencies are obtained under the treatments of compound fertilizer plus microelements plus brown algae oligosaccharides.The above results indicate that under the conditions of this experiment,brown algae oligosaccharides and microelements are good synergy substances for compound fertilizer.
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