皓达含腐植酸水溶肥料在柑橘上的应用效果研究
Study on Application Effect of Haoda Water-Soluble Fertilizer Containing Humic Acid on Citrus

以武汉市皓达农业科技有限公司生产的皓达含腐植酸水溶肥料为材料，在海拔600 m以上的柑橘园开展正规的田间小区试验，验证了该肥在柑橘上的应用效果。结果表明：该肥1000倍液喷雾或喷雾 + 灌根对柑橘的增产增收效果显著，比常规施肥亩分别增产75.4 kg、99.4 kg，增幅分别为6.57%、8.66%，亩分别净增收868.8元、596.8元；比常规 + 清水喷雾亩分别增产64 kg、88 kg，增幅分别为5.52%、7.59%，亩分别净增收732元、460元。该肥可一定程度促进柑橘坐果率提高，春、夏、秋梢萌发；随着施用次数增加，夏、秋梢数量提升幅度逐步增大。该肥还能促进柑橘果实膨大和单果重量提高，使小型果减少、大型果增加，从而实现增产。
Taking Haoda water-soluble fertilizer containing humic acid produced by Wuhan Haoda Agricultural Science and Technology Co., Ltd., as the material, a formal field plot test was carried out in a citrus orchard with an altitude of more than 600 m, and the application effect of this fertilizer on citrus was verified. The results showed that the effect of 1000 times liquid spray or spray + root irrigation on the yield and income of citrus was significant, which increased 75.4 kg and 99.4 kg, respectively, by 6.57% and 8.66%, compared with the conventional fertilization, and the net income per mu was 868.8 yuan and 596.8 yuan, respectively; compared with the conventional + clean water spray, the yield increased by 64 kg and 88 kg, 5.52% and 7.59% respectively, and the net income increased by 732 yuan and 460 yuan respectively. The fertilizer can promote the fruit setting of citrus to some extent, and the shoot germination in spring, summer and autumn; with the increase of application times, the number of shoots in summer and autumn increased gradually. The fertilizer can also promote the expansion of citrus fruit and increase the weight of single fruit, reduce the number of small fruit and increase the number of large fruit, so as to achieve yield increase.