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本试验第一阶段自1983年5月14日开始,选择生长良好的成年本地早二株进行地膜覆盖,用灰绿色薄膜,覆盖树冠投影下的土面。另外选择树势相似的同龄本地早二株作对照。覆盖薄膜后,定期测定地温、土壤含水量、着果数。采收后对果实品质进行评定。 试验结果表明,地膜覆盖对提高本地早成年树着果率有明显的作用,可以增加单果重,增进果实含糖量,提早着色,并使着色均
The first phase of the experiment began on May 14, 1983, and selected the well-grown adults as early as the second in the field to cover the ground with the gray-green film covering the soil surface under the canopy projection. In addition, we selected the same two plants of the same age as the control. After covering the film, the soil temperature, soil water content and fruit number were measured regularly. Harvest to assess the quality of the fruit. The results showed that plastic film mulching had a significant effect on increasing the fruit rate of local premature adult trees, which could increase the weight of single fruit, increase the sugar content of fruit, early coloring,