muqianquanshengshuidaoyiluxujinruyizaiqi,youyuchixuganhan,bufendaoqudatiangongshuijinzhang,duishuidaoshiqiyizaichanshengyidingyingxiang。gediyaozhenduihanqingjijikaipishuiyuan,jiaqiangnongtianshuiyuanguanliyutiaodu,quebaoshuidaoshiqizaicha。tongshi,genjubutongdaozuofangshifenleizhidao,zhuahaoshuidaoyizaijiyizhongjiuguangongzuo。
1. 加強水源調度,確保適期移栽 jijikaipishuiyuan,jiaqiangguangaishuiyuanguanliyutiaodu,tongyizuzhitiguanjixie,chongfenliyongjianghehubohedixiashui,huanjieshuikuxushuiliangbuzudewenti。duiyuanlishuiyuandetiankuai,jishidabushuijing,yibeiyanzhongganhanjijiejishigongshui。tongshi,jiaqiangduixianyoushushuiganqudeqinglihexiufu,qieshizuohaofumofangshenfangloudenggongzuo。jijiluoshizhongxiaoshuikutizhafangshui、緊急疏通排水渠、清理搶修大口井和塘壩、啟動水電站輪灌和抬水澆灌等措施,確保水稻移栽供水正常。
2. 組織搶早耕耖,提高整地質量 夏(xia)熟(shu)作(zuo)物(wu)收(shou)獲(huo)後(hou),抓(zhua)住(zhu)晴(qing)好(hao)天(tian)氣(qi)充(chong)分(fen)利(li)用(yong)機(ji)械(xie)突(tu)擊(ji)耕(geng)翻(fan)曬(shai)垡(fa)。在(zai)今(jin)年(nian)特(te)殊(shu)幹(gan)旱(han)條(tiao)件(jian)下(xia),提(ti)倡(chang)應(ying)用(yong)水(shui)田(tian)旱(han)整(zheng)技(ji)術(shu),提(ti)高(gao)整(zheng)地(di)質(zhi)量(liang),縮(suo)短(duan)泡(pao)田(tian)時(shi)間(jian),節(jie)省(sheng)泡(pao)田(tian)用(yong)水(shui)。秸(jie)稈(gan)還(hai)田(tian)的(de)田(tian)塊(kuai),在(zai)耕(geng)翻(fan)後(hou)上(shang)水(shui)漚(ou)田(tian)軟(ruan)化(hua)秸(jie)稈(gan)後(hou),采(cai)用(yong)中(zhong)型(xing)拖(tuo)拉(la)機(ji)配(pei)套(tao)秸(jie)稈(gan)還(hai)田(tian)機(ji)一(yi)次(ci)性(xing)埋(mai)茬(cha)耕(geng)整(zheng),使(shi)草(cao)、泥充分混合,在栽插前1~2天耘好田,待土壤沉實後栽插。大田整地做到田平、泥軟、肥勻,全田高低差不超過3厘米,田麵整潔,表土上細下粗、上爛下實。對機插田塊,整平後需適度沉實,沙質土沉實1天左右,壤土沉實1~2天,黏土沉實2~3天,待泥漿沉澱、表土軟硬適中時栽插。
3. 調控秧齡彈性,提高栽插質量 nongtiangongshuijinzhang,kenengdaozhibufendiqushuidaochaoyanglingzaicha,buliyuqianqifamiaohebaozusuigongdasui。yinggenjuchakouxianjiehedatiangongshuizhuangkuang,jishitiaozhengyanglingdanxing,tigaozaichazhiliang。youqishijichadaohepaozaidao,bunenganqizaichade,yaotongguohanguanheshiliangpenshiduoxiaozuodengshengchangtiaojiejiyanhuanshengyujincheng,jianshaochaoyanglingyangmiaobili。jichayangyibanzai3~4葉期移栽,秧齡掌握在15~20天;常規手栽中苗控製在6葉期移栽,秧齡掌握在30天左右;拋秧苗一般在4~5葉期拋栽,秧齡控製在20~25天。機插稻一般每畝栽插1.8萬~2萬穴,每穴4支苗左右,每畝基本苗7萬~8萬。手栽常規粳稻行距25厘米,株距13厘米,每畝基本莖蘖苗達9萬~10萬;豐產方、高產田行距26~27厘米,株距13厘米,每畝基本莖蘖苗8萬~9萬。手栽雜交稻行距28~29厘米,每畝基本莖蘖苗7萬~9萬;豐產方、高產田行株距均為29厘米左右,每畝基本莖蘖苗7萬以上。拋栽稻一般要求以苗定盤(每畝大田拋栽561孔秧盤40盤、434孔秧盤50盤左右),每畝拋栽1.8萬~2萬穴、基本苗7萬以上,做到淺水高拋、yunpao。genjuzaichashiqihepinzhongfennietexinghelitiaozhengjibenmiao,shiqizaichaqiefenniexingjiaoqiangdepinzhongjibenmiaokeshidangjianshao,zaichaqiyanchiqiefenniexingruodepinzhongyaoxiangyingzengjiajibenmiao。
4. 加強大田管理,促進秧苗早發 根據種植方式和大田狀況因苗製宜、分類管理,切實抓好一種就管工作。水漿管理上,移栽稻以促進早發壯苗為目標,從移栽到新生1張葉片的返青期要灌水護苗,水深3厘米左右;分蘖期淺水勤灌,以水調氣、以水調肥,促進多發根、快(kuai)分(fen)蘖(nie)。秸(jie)稈(gan)還(hai)田(tian)的(de)田(tian)塊(kuai),做(zuo)到(dao)短(duan)時(shi)間(jian)脫(tuo)水(shui)露(lu)田(tian),增(zeng)加(jia)土(tu)壤(rang)含(han)氧(yang)量(liang),促(cu)進(jin)秸(jie)稈(gan)腐(fu)熟(shu),防(fang)止(zhi)土(tu)壤(rang)有(you)毒(du)物(wu)質(zhi)過(guo)多(duo)造(zao)成(cheng)僵(jiang)苗(miao)。農(nong)田(tian)水(shui)源(yuan)供(gong)應(ying)緊(jin)張(zhang)的(de)地(di)區(qu),大(da)力(li)推(tui)廣(guang)應(ying)用(yong)節(jie)水(shui)灌(guan)溉(gai)技(ji)術(shu)。肥(fei)料(liao)運(yun)籌(chou)上(shang),移(yi)栽(zai)稻(dao)做(zuo)到(dao)活(huo)棵(ke)後(hou)早(zao)施(shi)分(fen)蘖(nie)肥(fei),一(yi)般(ban)要(yao)求(qiu)手(shou)栽(zai)稻(dao)、拋栽稻在移栽後5~7天施,每畝用尿素10公斤左右;機插稻由於苗小,堅持分次施用,一般在栽後5天左右每畝施尿素5~6公斤,栽後12天左右每畝施尿素10公斤。對基肥不足的田塊,在施分蘖肥後7天看苗情補施平衡肥,一般每畝施尿素3~5公gong斤jin。農nong田tian供gong水shui緊jin張zhang的de地di區qu,將jiang農nong家jia肥fei和he磷lin鉀jia肥fei結jie合he施shi用yong,提ti高gao土tu壤rang蓄xu水shui保bao肥fei和he水shui稻dao自zi身shen的de抗kang旱han能neng力li。此ci外wai,幹gan旱han會hui加jia重zhong病bing蟲chong草cao害hai的de發fa生sheng,應ying加jia強qiang防fang治zhi,特te別bie是shi水shui稻dao條tiao紋wen葉ye枯ku病bing和he黑hei條tiao矮ai縮suo病bing等deng重zhong大da病bing蟲chong害hai的de防fang治zhi和he大da田tian期qi化hua學xue除chu草cao工gong作zuo。對dui因yin推tui遲chi移yi栽zai,秧yang苗miao素su質zhi下xia降jiang,出chu現xian僵jiang苗miao的de田tian塊kuai,應ying根gen據ju具ju體ti情qing況kuang,采cai取qu相xiang應ying的de肥fei、藥、水管理調控措施,使秧苗盡快恢複生長。
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