含腐植酸叶面肥在嘎啦苹果上的应用效果分析

在陕西省铜川市进行了嘎啦苹果喷施含腐植酸叶面肥的对比试验。试验结果表明，喷施含腐植酸叶面肥800倍液、1000倍液，与喷施等量清水（对照）相比，单果重和产量均表现不同程度的增加，增产效果显著；叶片百叶鲜重、百叶干重、叶面积等均增加，经方差分析达到显著性差异水平；春秋梢和苹果可溶性固形物含量也有所增加，但经方差分析未达到显著性水平；经济效益分析结果以喷施含腐植酸叶面肥800倍液处理优于1000倍液。因此，本试验所用含腐植酸叶面肥在嘎啦苹果上的最适宜使用浓度为稀释800倍液。

Analyses for Application Effect of Humic Acid Foliar Fertilizer on Gala Apple

Contrast test of spraying humic acid foliar fertilizer on Gala apple was conducted in Tongchuan city, Shanxi province. The results showed that compared with spraying the same volume water （CK）, weight of single fruit and yield were increased in different extent with humic acid foliar fertilizer at the concentration of 800 times and 1000 times. Moreover, the fresh weight, dry weight and leaf area of 100 leaves were all increased signiifcantly tested by variance analysis. The spring and autumn shoots and the soluble solids content of apple were also increased, while the results were not signiifcant. The economic beneift analysis results showed that the suitable concentration with humic acid foliar fertilizer on Gala apple was 800 times dilution .