不同浓度氨基酸叶面肥对大白菜生长的影响

采选用津青75号品种进行试验,用不同浓度氨基酸叶面肥喷施大白菜,观察对其生长的影响。氨基酸叶面肥分别稀释200倍、300、400倍,在大白菜幼苗期、莲座期、结球期喷施,以水处理为对照。收获时测量大白菜的株高、株幅、叶球高、叶球直径和单株重量等指标。试验结果表明,氨基酸叶面肥能显著提高大白菜单株重量,但对本试验中设置的其他指标无显著影响。生产上如施用氨基酸,以稀释400倍喷施为好。

Effects of Different Concentration of Amino Acid Foliar Fertilizer on the Growth of Brassica campestris L.

The objective of this work is to determine the effects of different concentration of amino acid foliar fertilizer on the growth of Chinese cabbage（Brassica campestris L.cv.Jingqing No.5）.The foliar fertilizer was diluted into 200,300 and 400 times and were sprayed on Chinese cabbage at seedling stage,rosette stage and heading stage respectively.Deionized water treatment was used as the control（CK）.The height,plant diameter,leaf head height,leaf head diameter and weight per plant were measured when harvest.The results indicate amino acid foliar fertilizer can increase the weight per plant of Chinese cabbage but no significant effects on other parameters.As a conclusion,it is recommended that amino acid foliar fertilizer was used as it was diluted into 400 times in practice.