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以荔枝、龙眼、番荔枝、台湾青枣、番石榴等果树品种为试材 ,广州市果树研究所研发了一种适用于多种果树、含多种有机营养成分的生物有机营养产品———光合营养素。试验和应用结果表明 ,喷施光合营养素可显著提高岭南名优水果的光合效能 ,提高座果率、改善果实品质、增加产量 ,显著提高种果经济效益 ,具有较高的应用推广价值。①使妃子笑荔枝叶片光合速率提高2 8 3% - 42 % ,果实可溶性固形物含量提高 1 1个百分点 ,单果重由 2 5 7克增加到 2 7 8克 ,单株产量提高 12 5 %和 14 3% (石硖龙眼 ) ,尤其是在缺阳光的阴雨天气 ,喷施效果更为明显。②有效加快叶片老熟 ,提高叶片叶绿素含量。喷施后 ,妃子笑叶绿素含量提高 6 2 % ,达到P =0 0 1差异显著水准 ,AP番荔枝、毛叶枣、新世纪番石榴的叶绿素含量分别提高 18 1%、 15 3%和 11 2 %。
Taking litchi, longan, Annona asparagus, Taiwan jujube and guava as fruit material, Guangzhou Institute of Pomology has developed a bio-organic nutrition product that is suitable for a variety of fruit trees and contains a variety of organic nutrients --- Photosynthetic nutrients. The results of experiment and application showed that the application of photosynthetic nutrients could significantly improve the photosynthetic efficiency of Lingnan famous fruits, improve the fruit set rate, improve the fruit quality, increase the yield and significantly improve the economic benefits of seedings, which has a high application and popularization value. ① The leaf photosynthetic rate of Feizixiao litchi increased by 28.3% -42%, the content of soluble solids increased by 1 1%, the weight of single fruit increased from 257g to 278g, the yield per plant increased by 125% and 14 3% (Shijie longan), especially in the absence of sunshine rainy weather, spray effect is more obvious. ② effectively accelerate the leaf mature, increase leaf chlorophyll content. After spraying, the content of chlorophyll in Feizixiao lightened by 62% to a significant level of P = 0 0 1, and the chlorophyll content of AP annona, Phyllostachys jujube and New Century guava increased by 18 1%, 15 3% and 11 2, respectively %.