枇杷花期怎么管理
枇杷花期怎么管理,枇杷树的花期较长,分头花和二茬花。10~11月开放的叫头花,结的果实较大,品质好,但易受冻害。12~1月开放的为二茬花,果实品质较头花差,但抗寒能力较强,坐果率高。
在管理上要抓好以下几点:
①疏花疏果。将密生的衰弱花穗从结果枝与花穗的连结处剪断,全穗摘除,一般可根据树势的不同,疏除穗数占全树总数的20%~30%。
②预防干旱。秋冬季节干旱少雨时,为了提高枇杷受粉率,可在晴天上午进行树干喷水或者园间沟灌。
③根外追肥。每隔5天喷1次0.2%尿素溶液,可避免枇杷树大量开花吸肥,或喷0.12%磷酸二氢钾溶液,可避免营养失调。
④喷施生长调节剂。喷施0.1%的苄基嘌呤溶液或细胞分裂素80~120倍,能促进花蕾发育提高坐果率。
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