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板栗空苞是指总苞中果粒干瘪,苞内坚果不发育,只有蚕豆大小,且有壳无肉,无食用价值,成熟时绿色,不开裂,个小,又称空蓬、空壳,果农一般称之为“哑巴栗子”。我们多次试验研究,探索出了一套防治板栗空苞的综合技术,推广后使板栗空苞率控制在3%以内。现将其技术要点介绍如下:
Chestnut empty bracts refers to the involucre in the involucre, shriveled within the nut, only the size of broad beans, and the shell without meat, no food value, mature green, not cracking, a small, also known as empty Peng, empty shell, Fruit farmers are generally called “dumb chestnut ”. We have tried many times and explored a set of integrated technology to prevent and cure chestnut empty bract, which is controlled within 3% after spreading. Now the technical highlights are as follows: