腐植酸复合肥对芹菜生长、产量及品质的影响

Effects of Humic Acid Compound Fertilizers on the Growth,Yield and Quality of Celery

为了探明芹菜施用高塔腐植酸复合肥中腐植酸的适宜含量,以“四季小香芹”为试验材料,采用盆栽试验,研究了不同腐植酸含量的高塔复合肥对芹菜生长、产量及品质的影响。结果表明:与不施肥处理相比,施肥处理均能显著提高芹菜的株高、单株分枝数、产量、品质,产量提高了39.24~44.12 g/株,增产率93.34%~104.9%,单株分枝数提高了1.1~3.4个/株,Vc含量提高了22.2~40.4 mg/kg,可溶性糖含量提高了0.58%~1.43%。腐植酸含量≥2%的高塔复合肥均优于常规复合肥,显著提高了芹菜的单株分枝数和产量,并在一定程度上改善品质性状,其中产量提高了2.84~4.88 g/株,增产率在3.49%~6.00%,单株分枝数提高了1.4~2.3个/株,Vc含量提高了12.1~18.2 mg/kg,可溶性糖含量提高了0.23%~0.85%,硝酸盐含量降低了23.8~31.4 mg/kg,且效果随着腐植酸含量的增加而增加。

In order to determine the appropriate content of humic acid in high-tower humic acid compound fertilizer applied to celery,“four seasons parsley”was used as test material and a pot experiment was conducted to study the effects of high-tower compound fertilizer with different humic acid contents on the growth,yield and quality of celery.The results showed that,compared to the non-fertilized treatment,the fertilized treatment could significantly increase the plant height,number of branches per plant,yield,and quality of celery.The yield was increased by 39.24~44.12 g/plant(93.34%~104.9%),the number of branches per plant was increased by 1.1~3.4 per plant,the Vc content was increased by 22.2~40.4 mg/kg,and the soluble sugar content was increased by 0.58%~1.43%.High-tower compound fertilizers with humic acid contents of≥2%were better than conventional fertilizers,which increased significantly the number of branches and yield of celery,and improved the quality traits to a certain extent.The yield was increased by 2.84~4.88 g/plant,and the yield was increased in the range of 3.49%~6.00%,the number of branches per plant was increased by 1.4~2.3 per plant,the Vc content was increased by 12.1~18.2 mg/kg,the soluble sugar was increased by 0.23%~0.85%,and the nitrate content was decreased by 23.8~31.4 mg/kg,and the effects was increased with the increase of humic acid content.