史丹利大量元素水溶性肥料在大棚芹菜上的肥效研究

为对比施用水溶性肥料与传统硫基肥料在芹菜上的不同肥料效果，通过设置大棚肥效试验，对史丹利20-20-20大量元素水溶性肥料、尿素、15-15-15硫基肥在芹菜上的施用效果进行研究。结果表明，追施史丹利20-20-20水溶肥处理的芹菜株高在整个生长期内均为最高，最后收获时，比追施尿素处理的株高增加12.9%、比追施15-15-15硫基肥处理的增加4.0%；追施史丹利20-20-20水溶肥处理的芹菜鲜重、理论产量显著高于其他处理，理论产量比追施尿素处理的增加81.7%、比追施15-15-15硫基肥处理的增加15.7%；追施史丹利20-20-20水溶肥处理的芹菜经济收益亦为最高，比追施尿素处理的收益增加36765元/hm2、增收率达98.7%，比追施15-15-15硫基肥处理的收益增加9840元/hm2、增收率达15.3%。研究表明，施用水溶性肥料成本投入较大，但其效益最高。

Effectiveness of Stanley Water Soluble Fertilizer on Greenhouse Celery

In order to compare the fertilizer efficiency of water soluble fertilizer and traditional sulphur based fertilizer, greenhouse experiments were conducted to study the effects of 20-20-20 water soluble fertilizer of Stanley, urea and 15-15-15 sulfur fertilizer on celery. The results showed that the celery plant height was the highest under the 20-20-20 water soluble fertilizer of Stanley treatment during the whole growth period, and when harvest, it was 12.9% and 4% higher than those under urea and 15-15-15 sulfur fertilizer treatment, respectively. The fresh weight, theoretical yield of celery treated by 20-20-20 water soluble fertilizer of Stanley were significantly higher than other treatments, the theoretical yield was 81.7% higher than that under urea treatment, and 15.7% higher than under 15-15-15 sulfur fertilizer treatment. The economic income of celery treated by 20-20-20 water soluble fertilizer of Stanley was also the highest, increased 36765 RMB / hm2 than urea treatment (increase rate was 98.7%) and increased 9840 RMB / hm2 than 15-15-15 sulfur fertilizer treatment (increase rate was 15.3%). The results indicate that although the application of water soluble fertilizer costs greatly, but its efficiency is also the highest.