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2012年入春以来广西光照特少,持续低温阴天时间长,花穗抽生迟,花质量差,抽穗期遇高温,冲梢严重,开花期又遇高温天气,花期缩短(仅2-3d),对荔枝贵妃红受粉坐果影响很大。针对2012年异常气候,选取了生产上常用的抗逆境和促花保果三种叶面水溶肥,开展应对荔枝逆境的试验,对比不同处理对产量和果品的改善作用,以期筛选出效果较理想的水溶肥应用于生产。试验表明:通过在花前期、谢花后、第二次喷药、第二次生理落果前、果实转色期喷施美加富AS 500倍液,能有效提高果实糖分含量和提升果实色泽度,在产量和品质上都较对照明显突出,且能有效延长货架期。
Since the spring of 2012, there are few light in Guangxi, with long duration of cloudy and cloudy days, late flowering of spikes, poor quality of flowers, high temperature at heading stage, serious shootings, high temperature in flowering stage and shortening of flowering period (2-3d only) ), The lychee Royal red powder effect of a great influence. According to the 2012 anomalous climate, we selected three kinds of water-soluble foliar fertilizers commonly used in production, such as stress tolerance and flower protection, to test the adversity of litchi and compare the effects of different treatments on the yield and fruit quality, so as to select the better effect The water-soluble fertilizer used in production. The results showed that spraying 500 times of American and Canadian AS 500 times before flowering, second flowering, second flowering and before flowering could effectively increase the sugar content of fruit and enhance the color of fruit, In the production and quality are significantly more prominent than the control, and can effectively extend the shelf life.