早稻播種育秧期間冷、nuankongqihuodongpinfan,tianqibianhuawuchang,qiwenbianhuafududa,rongyizaochengdiwenyinyu。gedinonghuyaojiaqiangpeiyuguanligongzuo,fangzhidiwenlianyinyuzaochenglanyangsimiao。
管水調溫 shuijinengbaowenfangdong,younengtiaojiewencha,hainengxiaochuturangyouduwuzhihekongzhifumeijunfashengweihai。yaqiyaojiaqiangshirunguanli,zuodaoqingtianmangoushui,yintianbangoushui,yutiangouzhongbuguanshui。zheqijianyaobaochixiangmianshirun,turangzhongyangqichongzu,yiliduofagen,zhahaogen,kuailizan,cuquanmiao。shuiduoqijiushao,huichuxianyouyawugen,huogenshaoyachangxianxiang,yizhifangendaomiao。liangyehouyangmiaokanghannenglijianruo,dantongqizuzhiyijingxingcheng,keshixingqianshuiguanli,ruyubaoyoulengkongqiqinru,yaotiqianguanshenshui(水淹毛丫)護秧。冷空氣過後,天氣陡晴,早晨仍要保持深水層,等10時(shi)後(hou)慢(man)慢(man)將(jiang)水(shui)放(fang)淺(qian),防(fang)止(zhi)陡(dou)排(pai)青(qing)枯(ku)死(si)苗(miao)。尼(ni)龍(long)秧(yang)芽(ya)期(qi)應(ying)以(yi)密(mi)封(feng)為(wei)主(zhu),促(cu)齊(qi)苗(miao)紮(zha)根(gen)。尼(ni)龍(long)平(ping)鋪(pu)秧(yang)田(tian)遇(yu)陰(yin)雨(yu)天(tian)氣(qi),在(zai)雨(yu)停(ting)時(shi)要(yao)趕(gan)緊(jin)鼓(gu)膜(mo)通(tong)風(feng)或(huo)揭(jie)膜(mo)散(san)溫(wen)換(huan)氣(qi)。兩(liang)葉(ye)期(qi)以(yi)後(hou),遇(yu)中(zhong)午(wu)烈(lie)日(ri),要(yao)先(xian)灌(guan)水(shui)上(shang)廂(xiang),後(hou)通(tong)風(feng)煉(lian)苗(miao),防(fang)秧(yang)苗(miao)徒(tu)長(chang)和(he)高(gao)溫(wen)燒(shao)苗(miao)。如(ru)發(fa)現(xian)秧(yang)苗(miao)青(qing)枯(ku)卷(juan)筒(tong),要(yao)立(li)即(ji)灌(guan)深(shen)水(shui)搶(qiang)救(jiu)。
合理用肥 秧苗生長所需的養料,在兩葉一心前主要靠種子中的胚乳(米粒)供給(屬寄養階段);兩葉一心後主要靠根係從土壤中吸收(屬自養階段)。因此,秧田要在施足農家肥和磷鉀肥作底肥的基礎上,合理追肥提苗。對長勢過旺、葉片下披的秧苗,不可再施尿素等氮肥,應排水擱田,趁早晨有露水時撒草木灰,可壯莖控葉防倒。
防治病蟲害 低溫和病蟲害都能造成爛秧死苗,在搞好水肥管理的同時,使用殺菌劑是防止爛根死苗的一項重要措施。
適時按葉齡插秧 插秧期間,遇冷空氣侵入,有大風、雷雨冰雹時,一定要停止插秧,防止凍死或成僵苗。
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