枣树是多花树种,但落花落果十分严重。据调查,枣树自然坐果率仅为0.4%～1.6%,即使产量较高的丰产树和坐果率较高的品种,坐果率也仅为2%左右。花量大、花期养分供应不足、高温干旱天气多,是枣花授粉受精不良以致坐果率偏低的主要原因。因此,加强枣树花期管理,提高其坐果率是确保 Jujube tree is more flowering species, but the drop is very serious. According to the survey, jujube natural fruit set rate of only 0.4% to 1.6%, even if the yield of high yield-yielding trees and high fruit varieties, fruit set rate is only about 2%. Large amount of flowers, lack of supply of flowering, high temperature and drought weather, jujube is poor pollination and fertility resulting low fruit rate the main reason. Therefore, to strengthen flowering jujube management, improve their fruit setting rate is guaranteed