| Conventional fertilization as control, studied the comprehensive effects of a new tea garden specialty organic fertilizer such as improved soil acidification, promoted soil nutrient balance, improved tea production, quality and economic benefits. The results show that, compared with conventional fertilization, application of the tea garden specialty organic fertilizer increased soil pH by 0.14~0.54 compared with baseline, significantly improved soil acidification effects; conventional fertilization decreased soil pH by 0.27 ~0.40 compared with baseline, exacerbated soil acidification trends. In terms of soil nutrient effect, under the condition of the same nutrient amount, quick-acting nutrient use efficiency of tea garden specialty organic fertilizer is significantly higher than that of conventional fertilization; slow-releasing nutrients supply ability had no significant difference between two fertilization treatments, and increased the supply of mineral elements in the soil. Application specialty tea garden organic fertilizer can significantly enhance tea quality and production. Compared with conventional fertilization, application tea garden specialty organic fertilizer can make fresh tea leaves, tea
polyphenols, caffeine and water extract, soluble sugar content increased to different extent. Compared with the control, the tea yields of tea garden Jinxuan and Yinghong 9 increased by 6.4% and 7.8% respectively. On the economic benefits, the net output of application tea garden specialty organic fertilizer was significantly higher than that of conventional fertilization, efficiency by 6.5%~7.9%, unit area increase income of 1 249 Yuan to 6 544 Yuan per 667 m2. |
