專家建議：采取“玉米晚收、小麥晚播”措(cuo)施提高玉米(mi)后期產(chan)量

    本報西安(an)訊(xun)（記者 嚴阿(a)利(li)(li) 通訊(xun)員 沙道兵）由(you)于(yu)9月(yue)上(shang)中(zhong)旬陜西大部降(jiang)水較(jiao)常年偏(pian)多，氣溫(wen)偏(pian)低(di)1～2℃，關中(zhong)26站點(dian)連續12天(tian)基(ji)本無(wu)日(ri)照。持(chi)續低(di)溫(wen)陰雨(yu)寡(gua)照使(shi)夏玉(yu)米(mi)灌漿(jiang)受阻，貪(tan)青晚熟(shu)(shu)。加之前(qian)期(qi)(qi)高溫(wen)伏旱使(shi)玉(yu)米(mi)滯(zhi)長(chang)，近期(qi)(qi)土壤過濕不利(li)(li)于(yu)玉(yu)米(mi)后期(qi)(qi)成(cheng)(cheng)熟(shu)(shu)。預計(ji)陜西今年玉(yu)米(mi)成(cheng)(cheng)熟(shu)(shu)期(qi)(qi)較(jiao)常年平均推遲12天(tian)。

    據(ju)陜西(xi)(xi)省氣(qi)候中心預(yu)測，10月(yue)(yue)(yue)(yue)(yue)中旬，陜西(xi)(xi)平均(jun)氣(qi)溫較(jiao)常(chang)(chang)年同期(qi)偏(pian)高，降(jiang)水(shui)量全省大部(bu)較(jiao)常(chang)(chang)年同期(qi)略偏(pian)多。預(yu)計2014年陜西(xi)(xi)冬小麥適宜播(bo)種期(qi)為：關(guan)中西(xi)(xi)部(bu)、渭北東部(bu)10月(yue)(yue)(yue)(yue)(yue)9～10月(yue)(yue)(yue)(yue)(yue)16日(ri)(ri)；關(guan)中東部(bu)10月(yue)(yue)(yue)(yue)(yue)9日(ri)(ri)～10月(yue)(yue)(yue)(yue)(yue)19日(ri)(ri)。商(shang)洛冬小麥適宜播(bo)種期(qi)10月(yue)(yue)(yue)(yue)(yue)9日(ri)(ri)～10月(yue)(yue)(yue)(yue)(yue)24日(ri)(ri)，安康(kang)10月(yue)(yue)(yue)(yue)(yue)21日(ri)(ri)～11月(yue)(yue)(yue)(yue)(yue)2日(ri)(ri)，漢中10月(yue)(yue)(yue)(yue)(yue)15日(ri)(ri)～10月(yue)(yue)(yue)(yue)(yue)25日(ri)(ri)。較(jiao)常(chang)(chang)年同期(qi)偏(pian)晚2—14天，平均(jun)偏(pian)晚6天左右。

    農業氣(qi)象專(zhuan)家建議：在(zai)不影響冬(dong)(dong)小(xiao)麥形成(cheng)(cheng)冬(dong)(dong)前(qian)壯苗(miao)(miao)(miao)的(de)前(qian)提下(xia)，采(cai)取“玉米晚收(shou)、小(xiao)麥晚播”的(de)“雙(shuang)晚”措施，盡量提高玉米后期(qi)(qi)產量；秋收(shou)推(tui)遲，部(bu)分地(di)區土壤過濕造成(cheng)(cheng)今年冬(dong)(dong)小(xiao)麥適宜播種(zhong)(zhong)期(qi)(qi)相對較短，各地(di)應提前(qian)做好準備，力爭在(zai)適播期(qi)(qi)內(nei)完成(cheng)(cheng)播種(zhong)(zhong)；因前(qian)期(qi)(qi)降水充(chong)沛(pei)，墑情充(chong)足，對小(xiao)麥播種(zhong)(zhong)出(chu)苗(miao)(miao)(miao)及中(zhong)后期(qi)(qi)生長(chang)極為有利，應適當減小(xiao)播量，避免出(chu)現(xian)稠苗(miao)(miao)(miao)、旺苗(miao)(miao)(miao)。