一.加jia強qiang水shui肥fei管guan理li。目mu前qian,梨li樹shu已yi進jin入ru果guo實shi膨peng大da期qi和he花hua芽ya分fen化hua期qi,需xu要yao有you足zu夠gou的de營ying養yang供gong給gei。麥mai收shou前qian後hou,降jiang水shui偏pian少shao,氣qi溫wen高gao,天tian氣qi幹gan旱han,嚴yan重zhong影ying響xiang樹shu體ti水shui分fen供gong應ying。此ci時shi,要yao及ji時shi加jia強qiang水shui肥fei管guan理li。一yi要yao及ji時shi追zhui施shi硫liu酸suan鉀jia型xing高gao氮dan、中磷、高鉀三元素複合肥,追施後適量澆水,嚴防大水漫灌,以免造成漚根。二要葉麵噴灑速效、流失少、吸收快的硝酸鉀複合肥,磷酸二氫鉀和永業生命素,促進葉大、葉厚、葉綠、葉亮,減少梨樹落葉。
二.控製有機磷農藥的使用量。有機磷農藥對梨樹葉片有刺激作用,特別是使用濃度過高、shiyongcishuguoduohepensashijianzaigaowenqi,douhuizaochenglishudaliangluoye。yinci,yaoyangekongzhiyoujilinnongyaodeshiyongcishuheshiyongnongdu,nengshiyongqitanongyaodaitide,zuihaohuanchengshengwunongyaohuojuzhinongyao,bixushiyongshi,yaozhuyishiyongnongdu,penyaoshijianyaozaishangwu10點以前,下午4點以後,避開中午高溫時段。
三.噴施波爾多液。果實膨大期噴施波爾多液防治病害,即可防止雨水衝刷,又為梨樹葉子補充了銅、鈣元素,使梨樹生長旺盛,葉片濃綠黑厚,減少了早期落葉。
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