樱桃树什么时候打石硫合剂

樱桃树什么时候打石硫合剂
2025-04-03 11:11:16
推荐回答(3个)
回答1:

发芽前可以喷洒3~5波美度的石硫合剂,发芽初期可以喷洒0.5~1度的石硫合剂。不过,枣树最好是在发芽前半个月左右喷洒石硫合剂,防治病虫害。

石硫的使用方法:桃树在3月上中旬(发芽前15天左右洒3-5波美度的石硫合剂,可以防治多种病虫害。如果是自己熬制的,浓度在25-30度之间的,1斤原药加水5倍即可稀释到3-5度;如果是购买的成品(晶体石硫合剂),按照说明书使用即可。喷洒时树上、地下都要喷洒严实,喷药之前要将园内的枯枝、落叶、杂草、病僵果等清理干净,移出园外烧毁。

注意事项:

处于萌芽期(花之前)的樱桃树还可以喷洒0.5波美度的石硫。樱桃树春季前半个月左右(3月上旬)喷洒3~5度的石硫合剂,铲除越冬病虫害。

花前浇水:在发芽期果园灌水,可推迟花期3~5天。霜前喷水:轻微霜冻可在降霜前1~2小时果园喷水,靠水分凝结散热,提高园内小气候的温度。熏烟:在遇到2度以下霜冻时,在接近降霜时熏烟防霜,持续到日出止。燃料用锯末、碎柴草等,以暗火浓烟为宜,每亩少于4个燃烟点。

喷施防护剂:在大花蕾期、幼果期喷防护剂如:复硝酸钠(爱多收)、果树花芽防冻剂等,对抵御霜冻有一定作用。常遇春季霜冻害的地方建温室保护。

在生产上,樱桃树普遍存在中心干上小主枝分布不均,光秃现象较重,小主枝生长势不均衡,上强下弱或下强上弱,幼树枝条生长过于强旺、直立,浪费营养,成型慢,上部枝条直立、生长过于强旺,下部缺枝或生长势弱。这些问题的形成,大多与从定植之初的树形培养和修剪不到位有很大关系。

回答2:

樱桃树春季发芽前半个月左右(3月上旬)喷洒3~5度的石硫合剂,铲除越冬病虫害。

回答3:

花包散开能打石硫剂吧

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