枣树开花多,而且花期长、消耗的养分大,但自然着果率不过1％～2％左右,在授粉授精的过程中如遇到干旱的天气,长时期的低温阴雨,营养不良,管理不善等原因,会导致落蕾落花和生理落果而减产,因此,在枣树花期应采取各种科学的管理措施,控制花芽的形成和适当地进行疏花疏果外,在改善枣树营养的基础上,创造良好的授粉条件,调节养分向花果的转运和及时防治病虫害,进行保花保果,提高座果率,就能显著地提高产量。 一、叶面喷肥 枣树花期进行叶面喷肥,能增加和促使养分向花果供应,补充树体营养,提高花的质量,减少落花落果。枣 Jujube flowering and flowering, long flowering, consumption of nutrients, but the natural rate of fruit, but about 1% to 2%, in the process of pollination and insemination such as arid weather, prolonged hypothermia, malnutrition, management Poor and other reasons, will lead to loss of flowers and physiological fruit drop fruit and reduce production, therefore, jujube flowering should take a variety of scientific management measures to control the formation of flower buds and appropriate thinning thinning, in improving jujube nutrition On the basis of creating a good pollination conditions, regulate the transport of nutrients to the flowers and fruits and pests and diseases in a timely manner, the protection of flowers and fruit, improve the fruit set rate, can significantly improve the yield. First, the foliar spray Jujube flowering foliar spray, can increase and encourage the supply of nutrients to the flower, the tree nutrition, improve the quality of flowers and reduce the drop of fruit. date