今年,我國旱災發生頻繁,春旱、伏旱、秋(qiu)旱(han)不(bu)斷(duan)。秋(qiu)旱(han)的(de)發(fa)生(sheng),不(bu)僅(jin)影(ying)響(xiang)夏(xia)播(bo)作(zuo)物(wu)和(he)部(bu)分(fen)晚(wan)熟(shu)春(chun)播(bo)作(zuo)物(wu)正(zheng)常(chang)灌(guan)漿(jiang)成(cheng)熟(shu),而(er)且(qie)會(hui)延(yan)誤(wu)秋(qiu)播(bo)作(zuo)物(wu)適(shi)時(shi)播(bo)種(zhong)和(he)出(chu)苗(miao)生(sheng)長(chang)。應(ying)對(dui)秋(qiu)旱(han)發(fa)生(sheng),確(que)保(bao)秋(qiu)糧(liang)生(sheng)產(chan),主(zhu)要(yao)可(ke)以(yi)采(cai)取(qu)以(yi)下(xia)幾(ji)項(xiang)措(cuo)施(shi):
一yi是shi應ying用yong測ce墒shang節jie灌guan技ji術shu。各ge級ji農nong業ye技ji術shu推tui廣guang部bu門men要yao針zhen對dui秋qiu季ji幹gan旱han發fa生sheng趨qu勢shi,定ding期qi開kai展zhan墒shang情qing監jian測ce,掌zhang握wo農nong田tian土tu壤rang墒shang情qing變bian化hua規gui律lv,了le解jie農nong田tian土tu壤rang水shui分fen供gong應ying和he作zuo物wu缺que水shui狀zhuang況kuang,根gen據ju作zuo物wu需xu水shui規gui律lv,提ti出chu科ke學xue抗kang旱han技ji術shu對dui策ce。農nong民min朋peng友you們men要yao隨sui時shi關guan注zhu天tian氣qi變bian化hua和he墒shang情qing測ce報bao結jie果guo,積ji極ji做zuo好hao抗kang旱han、灌溉準備。
ershichongfenliyonggezhongshuiyuan。zaiyoushuiyuandediqu,genjuturangshangqinghezuowuxushuizhuangkuang,chongfenliyongguangaisheshishishibushang,bingjijicaiyongjieshuiguangaijishu。jijiexingganhanyanzhongdediqu,zaiyujichongfenfahuijishuijiaohuoxushuichidengjishuisheshidezuoyong,liyongyouyidingjiyumiandeshandi、丘陵坡地、道路等,將徑流雨水經過沉沙、過濾處理後,蓄積在集雨設施中備用。
三是采用蓄水保墒技術。沒有灌溉水源的地方,應抓緊通過中耕除草、聚土壟作、增施有機肥等措施,改善土壤物理、化學性狀,減少無效土壤水和養分的消耗。
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