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落花落果,“花而不实”,虫害猖獗是枣树低产的主要原因。应用喷施稀土和敌杀死防治虫害技术,经2年的试验、示范和推广,增产效果显著。 一、叶面喷施稀土 1.喷施方法 浓度分别为0.03%,0.05%和0.07%,蕾期、初花期、盛花期各喷1次。做到树冠内外喷布均匀至叶面滴水为止。水质要求pH值6～6.5,用踏板式高压喷雾器。 2.调查结果 在花蕾至盛花期喷3次稀土,用0.03%,0.05%,0.07%处理,坐果率比对照分别高45,73,57个
Scattered, “flowers and not real” pests rampant jujube is the main reason for the low yield. Application of spraying rare earth and enemy kill pest control technology, after 2 years of testing, demonstration and promotion, a significant increase in yield. First, foliar application of rare earth 1. Spraying method concentrations were 0.03%, 0.05% and 0.07%, buds, early flowering, flowering spray each time. Spray canopy inside and outside the uniform to the foliar drip so far. Water quality requirements pH 6 to 6.5, with pedal-type high-pressure sprayer. The results of the survey spray 3 times in the flower buds of flowering rare earth, with 0.03%, 0.05%, 0.07% treatment, fruit setting rate were higher than the control 45,73,57