大棚油桃疏花疏果技术内容摘要:
2、,易造成减产;疏得太晚,桃果多,浪费养分。 第二次疏果即定果,在油桃硬核期后进行,将超载果疏下。 2、留果量。 留果量要根据油桃品种的坐果率、桃子大小、树势、树体大小确定。 一般长果枝留 46 个果,中果枝留 34 个果,短果枝留 12 个果,花束状果枝留 1 个果或不留果,延长枝少留果。 留得太少,果实虽大,但产量太低,效益也不好。 3、疏果方法。 要根据“留优去劣”的原则进行。 同一枝上桃果间距约 1015厘米。 疏果时,要先疏除畸形果、小果、病虫果,再根据负载量合理留果,留多叶果,疏少叶果;留侧生、下位果,疏朝上果;留壮枝果,疏弱枝果。 疏果次序应由内到外,从上到下,按枝条顺序逐枝进行,防止漏疏或损伤果实。 专利查询。大棚油桃疏花疏果技术
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