Effects of spraying glutamic acid (Glu), glutamine (Gln) and glycine (Gly) on nitrate accumulation and nutritional quality of pakchoi (Brassica chinensis L.

• 在夏秋两季气候条件下对3种氨基酸(谷氨酸、谷氨酰胺、甘氨酸)喷施小白菜硝酸盐积累及营养品质的影响作了研究。