摘要
[目的]明确聚天冬氨酸（ PASP）和黄腐酸钾（ FA）在芹菜上的施用效果。[方法]以冲施清水及金正大20–20–20水溶肥作为对照，将0．20％FA、0．50％PASP、0．20％FA与0．50％PASP复配增效剂添加到金正大20–20–20水溶肥中对芹菜进行冲施，研究不同处理对芹菜农艺性状、产量和经济效益的影响。[结果]与空白对照相比，冲施水溶肥和水溶肥中添加PASP和FA及复配使用均可明显改善芹菜的农艺性状，提高芹菜的产量和经济效益。株高增加6．50～15．00 cm，茎粗增加0．43～0．60 cm，单株重增加0．07～0．23 kg，产量提高14．50％～48．66％。其中，以0．50％PASP与0．20％FA复配处理效果最好，经济效益最高，比冲施金正大20–20–20水溶肥收益增加40380元／hm2。[结论]水溶肥中添加PASP和FA在芹菜及其他蔬菜上有广阔的应用前景。
Abstract
Objective] The aim was to study effects of polyaspartic acid and fulvic acid potassiumon celery.[Method] With clear water and 20-20-20 water soluble fertilizer as control,applying 20-20-20 water soluble fertilizer on celery by adding 0.20%fulvic acid potassium,0.50%polyaspartic acid,0.20%fulvic acid potassium and 0.50%polyaspartic acid compound agent,effects of different treatments on agronomic charac-ters, yeild and economic benefits of celery were studied.[Result] Compared with clear water,applying water soluble fertilizer and adding fulvic acid potassium,polyaspartic acid,and compound agent could obviously improve celery traits,improve celery yield and economic benefits.Plant height was increased by 6.50-15.00 cm,stem diameter was increased by 0.43-0.60 cm,single plant weight was improved by 0.07-0.23 kg, plot yield was improved by 14.50%-48.66%.Among which,the compound agent had the best effect,economic benefit was highest,the benefit was increased by 40 380 yuan/hm2 compared with 20-20-20 water soluble fertilizer.[Conclusion] Applying water soluble fertilizer on celery and other vegetables by adding fulvic acid potassium ,polyaspartic acid had broad application prospects .
国家科技期刊平台
NSTL
维普
万方数据