不同分子量改性聚天门冬氨酸对空心菜生长的影响

Effect of Different Molecular Weight Modified Polyaspartic Acid on the Growth of Water Spinach

摘要: 本文通过水培试验，研究复合肥料中添加不同分子量改性聚天门冬氨酸对空心菜根系生长、养分吸收、叶绿素及产量的影响，以期为含改性聚天门冬氨酸新型复合肥料在农业生产中的推广应用提供科学依据。结果表明：复合肥料中添加不同分子量改性聚天门冬氨酸均能促进空心菜根表面积、根体积、平均直径、根长、茎秆直径、根重和株重等各方面性状的提升，高分子量的改性聚天门冬氨酸增效剂更有利于空心菜的生长及根系发育，同时强化空心菜对氮磷钾养分的吸收。

Abstract: This paper studied the effects of different molecular weight modified polyaspartate added to compound fertilizers on the root growth, nutrient absorption, chlorophyll and yield of spinach through hydroponic experiments, in order to provide scientific basis for the promotion and application of new compound fertilizers containing modified polyaspartate in agricultural production. The results showed that the addition of different molecular weight modified polyaspartate in compound fertilizers could promote the improvement of root surface area, root volume, average diameter, root length, stem diameter, root weight and plant weight of Brassica campestris. The high molecular weight modified polyaspartate synergist was more conducive to the growth and root development of Brassica campestris, and at the same time enhanced the absorption of nitrogen, phosphorus and potassium nutrients by Brassica campestris.