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2020年春季早稻科学灌溉技术指导意见
发布日期: 2020-03-28 08:55:17浏览次数: 来源:欧冠投注_欧冠投注网站【安全购彩】 字体: [ ]

全国农技中心关于印发2020年春季早稻科学灌溉技术指导意见的通知

农技土肥水〔2020〕43

欧冠投注ZHEJIANG、JIANGXI、ANHUI、FUJIAN、HUBEI、HUNAN、GUANGXI、GUANGDONG、HAINANHEYUNNANSHENG、ZIZHIQUTUFEI(GENGFEI、GENGBAO、NONGJI)ZHAN(ZONGZHAN、ZHONGXIN):

DANGQIANZAODAOYIJINRUYUYANGZAICHAGUANJIANSHIQI,WEIGUANCHELUOSHINONGYENONGCUNBUQUANGUOZAODAOSHENGCHANTUIJINLUOSHISHIPINHUIYIJINGSHEN,CUJINHUIFUZAODAOSHENGCHAN,WOZHONGXINZUZHIZHIDINGLE《2020NIANCHUNJIZAODAOKEXUEGUANGAIJISHUZHIDAOYIJIAN》,XIANYINFAJINIMEN,QINGJIEHEBENDISHIJI,JIAQIANGJISHUZHIDAOOUGUANTOUZHU,QUEBAOKEXUEGUANGAIJISHULUOSHILUODI。

QUANGUONONGJIZHONGXIN

2020NIAN3YUE27RI

2020年春季早稻科学灌溉技术指导意见

WEIGUANCHELUOSHINONGYENONGCUNBUQUANGUOZAODAOSHENGCHANTUIJINLUOSHISHIPINHUIYIJINGSHEN,CUJINHUIFUZAODAOSHENGCHAN,QUANGUONONGYEJISHUTUIGUANGOUGUANTOUZHUZHONGXINZUZHIZHUANJIAZHIDING2020NIANCHUNJIZAODAOKEXUEGUANGAIJISHUZHIDAOYIJIAN。

一、华南早稻区

(一)基本情况。本区域包含广东、广西、海南和福建等省(区)早稻种植区域。3月以来,华南南部降雨较常年偏少2-5成,其他区域较常年持平或略偏多,温度较常年偏高1-4℃,利于早稻育秧和栽插。目前早稻大部分已栽插。

(二)灌溉建议。欧冠投注本区域水热资源丰富,早稻是高耗水作物,宜立足较好的水热资源和苗情状况,勤灌少排,指导农民在干旱和高温时浅水勤灌,补水降温,促进稳产高产。避免大水灌排,控制养分随水流失,减少稻田排放。

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(三)灌溉措施。本区域田间基础工程较好,灌溉保证率较高,但气象干旱概率较大,春季用水需求多,应千方百计采取渠道引水或库塘抽水方式灌溉,满足早稻关键生育期水分需求。出现高温天气及时灌溉。连续降水或强降水后及时排涝,科学调控稻田水分。

二、长江中下游早稻区

(一)基本情况。本区域包括湖南、江西、安徽、湖北和浙江等省早稻种植区。3月以来,温度较常年偏高1-4℃,安徽南部、湖北东部和浙江大部降雨较常年偏少2-8成,江西中南部和湖南南部偏多1倍以上,其他地区与常年持平或略偏多,水热条件利于早稻育秧栽插。

(二)灌溉建议。欧冠投注本区域水资源丰富,应指导农民搞好育秧泡田,扩大早稻栽插面积。根据降水和早稻需水规律,以“调”为主,灌排结合、水肥耦合,培育壮秧,移栽后促早生快发,促进高产。

欧冠投注GAOHAOJINZHONGXIAODU,JINGZUOYANGBAN,TUIJINSHIRUNYUYANG、HANYUYANG、CHANGDIYUYANG、GONGCHANGHUAYUYANGDENGJIZHONGYUYANG。JINQILIANYINYUJIAODUO,YUYANGTIANYINGZUODAOYINTIANBANGOUSHUI、YUTIANPAIGANSHUI,WEICHIYANGBANTURANGSHIRUNHEGONGYANGCHONGZU。TIANQITURANZHUANQINGHOU,WENPENGYUYANGYINGTIQIANTONGFENGLIANMIAO,BIANJIEMOBIANSASHUIHUOGUANSHUI。YUNSHIMIAOFEI,YIBANYEMIANPENSHISUXIAODANFEIHELINSUANERQINGJIA。

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GUANJIANGQIZAODAOSHUIFENGUANLIYINGGANSHIJIAOTI,QIANQIHEZHONGQIYISHIWEIZHU,GUANHOUZIRANLUOGAN1-2TIANZAICIGUANSHUI。GUANJIANGHOUQIYIGANWEIZHU,JIGUANHOUZIRANLUOGAN3-4TIANZAICIGUANSHUI,BINGSHIMIAOQINGSHISHIPENSHIYEMIANFEI,YIBANMUPENSHILINSUANERQINGJIA0.5kgHENIAOSU1-2kg。SHOUHUOQIAN7TIANDUANSHUI。

(三)灌溉措施。欧冠投注本区域稻田基础工程较好,今年春季降水偏多,出现连续降水或强降水概率较大,应及时排水,防止渍涝。根据水稻不同生育期水层厚度调整灌排量,满足作物水分需求。

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