1、水稻預防技術:對dui水shui稻dao首shou先xian要yao掌zhang握wo好hao開kai花hua灌guan漿jiang期qi的de水shui層ceng管guan理li,開kai花hua時shi淺qian水shui勤qin灌guan,日ri灌guan夜ye排pai,適shi時shi落luo幹gan,防fang止zhi斷duan水shui過guo旱han,改gai善shan田tian間jian小xiao氣qi候hou,以yi利li於yu灌guan漿jiang進jin行xing,籽zi粒li飽bao滿man。此ci外wai,選xuan擇ze抗kang高gao溫wen的de品pin種zhong,在zai高gao溫wen出chu現xian時shi噴pen灑sa3%的過磷酸鈣,均有減輕高溫害的效果。
2、蔬菜預防技術:春播高溫果菜(如西紅柿、椒類)避免播種過遲,並要加強前斯管理,促使枝葉繁茂,以減輕日曬,苗壯也可以提高對高溫的抵抗力。種植較耐熱的蔬果,如冬瓜、絲瓜、豇豆、通菜等。
在zai海hai拔ba較jiao高gao的de冷leng涼liang山shan區qu建jian設she夏xia季ji淡dan季ji蔬shu菜cai補bu給gei生sheng產chan基ji地di。套tao種zhong高gao稈gan作zuo物wu利li用yong遮zhe陰yin降jiang溫wen,如ru茄qie子zi與yu甜tian椒jiao間jian種zhong,均jun有you遮zhe陰yin降jiang溫wen的de效xiao果guo。適shi時shi澆jiao水shui,因yin為wei突tu然ran降jiang溫wen會hui給gei蔬shu菜cai生sheng長chang造zao成cheng生sheng理li障zhang礙ai。覆fu蓋gai遮zhe陰yin栽zai培pei。在zai入ru夏xia後hou,采cai用yong遮zhe陽yang網wang(涼爽紗)覆蓋栽培,可防止太陽直接輻射灼傷蔬菜,表土溫度可比露地栽培降降溫3-5度。施用生長調節劑控製落花。如用2.4-D浸花可防止西紅柿和茄子因高溫落花,並促進子房膨大。PCPA(對氧苯氧乙酸)溶液噴花也可防止茄果類落花。
3、果樹預防技術:主要是預防果樹日灼。主要防禦措施有:xiajikeyicaiquguoyuanguangaijiguoyuanbaoshangcuoshi,zengjiaguoshushuifengongying,manzuguoshushengchangfayusuoxudeshuifen。zaiguomianpensaboerduoyehuoshihuishui,yekeyijianshaorizhuobingdefasheng。dongjikecaiyongshugantubaiyihuanheshupiwenduzhoubian。ciwai,zaixiujianshishutidexiangyangfangxiangyingduoliuyixiezhitiao,yijianqingrizhuodeweihai。
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