記者從省農業廳獲悉,近期,省農業廳組織了5個專家考察組對我省15個市當前玉米生產、關(guan)鍵(jian)技(ji)術(shu)推(tui)廣(guang)應(ying)用(yong)及(ji)高(gao)產(chan)創(chuang)建(jian)等(deng)情(qing)況(kuang)進(jin)行(xing)了(le)實(shi)地(di)考(kao)察(cha),並(bing)召(zhao)開(kai)了(le)全(quan)省(sheng)玉(yu)米(mi)生(sheng)產(chan)形(xing)勢(shi)專(zhuan)家(jia)會(hui)商(shang)會(hui)議(yi)。彙(hui)總(zong)專(zhuan)家(jia)意(yi)見(jian),結(jie)合(he)當(dang)前(qian)玉(yu)米(mi)生(sheng)長(chang)現(xian)狀(zhuang),專(zhuan)家(jia)組(zu)提(ti)出(chu)了(le)夏(xia)玉(yu)米(mi)中(zhong)後(hou)期(qi)管(guan)理(li)五(wu)大(da)措(cuo)施(shi),確(que)保(bao)我(wo)省(sheng)夏(xia)玉(yu)米(mi)豐(feng)產(chan)豐(feng)收(shou)。
一、miqieguanzhutianqibianhua,jishizuohaozaiqingyingdui。jinqijiangyujiaoduo,yaojishishutongtianjianditoudepaishuixitong,baozhengyumishengchangzhonghouqipaishuichangtong,yuhoujishipaishui。jinnianbozhongjiaochangnianpianwan,yumimiaoqiwendugao,shengchangkuai,zhizhujiaoxi,kangdaofunenglijiaocha,ruyulaozaihuofengzai,jianghuizaochengdaofu,zairongyifashengdaofudedikuai,kecaiquzhonggengpeitudengcuoshi,cujinqishenggenfayu,tigaozhizhukangdaonengli。houqifashengdaofuyaojishirengongfuqi。
二、密(mi)切(qie)關(guan)注(zhu)玉(yu)米(mi)授(shou)粉(fen)情(qing)況(kuang),及(ji)時(shi)采(cai)取(qu)應(ying)對(dui)措(cuo)施(shi)。加(jia)強(qiang)玉(yu)米(mi)花(hua)粒(li)期(qi)田(tian)間(jian)管(guan)理(li),及(ji)早(zao)拔(ba)除(chu)小(xiao)弱(ruo)株(zhu),改(gai)善(shan)田(tian)間(jian)通(tong)風(feng)透(tou)光(guang)條(tiao)件(jian)。高(gao)產(chan)攻(gong)關(guan)田(tian)可(ke)進(jin)行(xing)人(ren)工(gong)去(qu)雄(xiong)和(he)輔(fu)助(zhu)授(shou)粉(fen)。大(da)田(tian)玉(yu)米(mi)開(kai)花(hua)授(shou)粉(fen)期(qi)間(jian)如(ru)遇(yu)連(lian)續(xu)陰(yin)雨(yu),也(ye)要(yao)采(cai)取(qu)人(ren)工(gong)輔(fu)助(zhu)授(shou)粉(fen)等(deng)補(bu)救(jiu)措(cuo)施(shi),切(qie)實(shi)提(ti)高(gao)結(jie)實(shi)率(lv),努(nu)力(li)增(zeng)加(jia)穗(sui)粒(li)數(shu)。
三、加強中後期肥水管理,防止玉米早衰。應重視花粒肥的施用,開花期增施氮肥,以提高葉片光合效率、延長葉片功能期。在籽粒灌漿期追施總氮量的15%~20%,每畝可施用尿素7.5公斤左右。高產攻關田提高後期用氮肥比例,花粒肥增至30%左右,每畝可施用尿素15公斤左右。施用時可結合澆水或趁降雨前追施,以提高肥效。
四、加強病蟲害監控,及時防治蟲害。穗期是多種病蟲的盛發期,花粒期仍有多種病蟲危害,要搞好監測預報,及時進行防治。防治彎孢菌葉斑病可用50%百菌清、50%多菌靈、70%甲基托布津500倍液噴霧;大斑病可用40%克瘟散、50%多菌靈、75%代森錳鋅等藥劑500~800倍液噴霧。褐斑病可用50%多菌靈、70%甲基托布津500倍液噴霧防治。鏽病可用20%粉鏽寧乳油每畝75~100毫升噴霧防治。玉米穗蟲可用90%敵百蟲800倍液滴灌果穗防治。玉米蚜可用50%辟蚜霧每畝8~10克或10%吡蟲啉每畝10~15克加水45公斤噴霧防治。三代黏蟲可用50%辛硫磷1000倍液噴霧防治。
五、大力宣傳適當晚收,確保正常成熟。因今年玉米播種晚,生育期推遲,籽粒發育時間不足,適當晚收對於提高粒重、baozhengchanliangjuyoutebiezhongyaozuoyong。gediyaoguangfanxuanchuan,shinongminqunzhongchongfenrenshiyumishidangwanshoudezhongyaoyiyi,zaibuyingxiangxiaomaibozhongdeqingkuangxia,jinliangwanshou,yibaozhengyumichanliang。jinniandeshouhuoshiqiyingjizhongzai10月1日前後,高產攻關田10月上旬收獲,一般田9月底、10月初收獲。大力推廣玉米聯合收獲,提高機械作業質量,秸稈粉碎最長不超過10厘米,拋撒要均勻。
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