越yue冬dong期qi凍dong害hai的de補bu救jiu。小xiao麥mai越yue冬dong期qi遭zao受shou凍dong害hai,若ruo墒shang情qing適shi宜yi,可ke在zai越yue冬dong期qi間jian天tian氣qi溫wen暖nuan時shi追zhui施shi化hua肥fei。返fan青qing後hou應ying改gai過guo去qu控kong水shui肥fei為wei肥fei水shui猛meng促cu,以yi彌mi補bu冬dong季ji受shou凍dong的de損sun失shi。若ruo冬dong前qian已yi經jing拔ba節jie的de麥mai田tian越yue冬dong期qi遭zao受shou凍dong害hai,應ying趁chen晴qing天tian中zhong午wu12點至下午2點進行鎮壓,把已拔節的主莖和分蘖壓傷,以促進小分蘖生長,並結合追肥進行中耕,以促進小麥安全健壯生長。
早(zao)春(chun)凍(dong)害(hai)的(de)補(bu)救(jiu)。早(zao)春(chun)凍(dong)害(hai)發(fa)生(sheng)後(hou),即(ji)使(shi)凍(dong)害(hai)很(hen)重(zhong),若(ruo)加(jia)強(qiang)管(guan)理(li),仍(reng)能(neng)促(cu)進(jin)小(xiao)麥(mai)繼(ji)續(xu)生(sheng)根(gen)發(fa)蘖(nie),迅(xun)速(su)恢(hui)複(fu)生(sheng)長(chang)。因(yin)此(ci),遭(zao)受(shou)早(zao)春(chun)凍(dong)害(hai)的(de)麥(mai)田(tian)一(yi)般(ban)不(bu)要(yao)毀(hui)掉(diao),必(bi)須(xu)及(ji)早(zao)進(jin)行(xing)補(bu)救(jiu)。早(zao)春(chun)凍(dong)害(hai)的(de)補(bu)救(jiu)措(cuo)施(shi)主(zhu)要(yao)有(you):
yishijishizhuifei。zaochundonghaiyanzhongdemaitian,yibandoushiwangchangmaitian,yidandonghaifasheng,yaobawangmiaodangchengruomiaolaiguan,lijizhuishisuxiaohuafei。yibanqingkuangxia,meimuzhuishiniaosu7.5~10公斤,追肥後要及時澆水。
二是噴灑化學調節劑。凍害發生後,每畝用磷酸二氫鉀200克噴灑小麥植株,對促進小麥恢複生長具有良好作用。
三是及時防治病蟲害。凍害嚴重的麥田,新生分蘖成穗率提高、組織較嫩,易發生病蟲害。因此,要結合噴灑植物生長素、噴灑農藥,防治病蟲害的發生。
sishifanqinghouduiyuyijingbajiedemaitian,zhujinghedafenniesuiyidongsi,danbuyaozaijinxingzhenya。zheshiyinweizhujinghedafenniedeshengchangdianzaoshoudonghaihou,shengchangzhongxinyizhuandaorengcunhuodexiaofennieshang,buhuizaijixushengchang。ruocaiquzhenya,huiduixiaofenniedeshengchangchanshengbuliyingxiang,yingyicuweizhu。
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