黑龍江省2025年小麥科技備春耕生產(chǎn)指導(dǎo)建議

2025-02-28 10:15:01 來源:黑龍江省農(nóng)業(yè)農(nóng)村廳 黑龍江省小麥協(xié)同創(chuàng)新推廣體系 閱讀量:13619 評論

  黑龍江省小麥主產(chǎn)區(qū)主要集中在北部的黑河市域及大興安嶺冷涼地區(qū),用于小麥主要糧食作物生產(chǎn)以及與大豆玉米進(jìn)行輪作,該區(qū)域位于大興安嶺沿麓優(yōu)質(zhì)強(qiáng)筋小麥優(yōu)勢產(chǎn)業(yè)帶,日照時(shí)間長、晝夜溫差大,是重要的優(yōu)質(zhì)原糧生產(chǎn)基地。此外,齊齊哈爾北部、大慶周邊、虎林、佳木斯、伊春、牡丹江等地也有零星種植,近幾年在黑龍江省南部地區(qū)麥菜復(fù)種區(qū)、沿嫩江、松花江的壩外地、江灣地、河套地、江心島及鹽堿地等潛在可開發(fā)耕地推廣早熟小麥種植。據(jù)黑龍江省氣象局預(yù)測,2025年春季全省平均氣溫高于常年,春季全省平均降水量多于常年。近期我省氣溫逐漸回升,各地陸續(xù)進(jìn)入小麥播前準(zhǔn)備工作,小麥播種期較常年會(huì)有所提前或者持平?,F(xiàn)根據(jù)氣候特點(diǎn)及生產(chǎn)形勢提出科技備春耕生產(chǎn)建議。
 
  一、重點(diǎn)推薦品種
 
  根據(jù)當(dāng)?shù)匦←準(zhǔn)袌鲂枨蠹昂邶埥∞r(nóng)業(yè)農(nóng)村廳公布的《黑龍江省2025年優(yōu)質(zhì)高效小麥品種種植區(qū)劃布局》選擇不同品種類型,中熟與晚熟品種合理搭配;干旱半干旱地區(qū)或崗地肥力一般偏下地區(qū)建議選擇抗旱類型品種;低濕地區(qū)或洼地肥力較好地區(qū)選擇稈強(qiáng)耐密、抗穗發(fā)芽的優(yōu)質(zhì)喜肥水品種。
 
二、配套栽培技術(shù)
 
  1、茬口選擇及輪作
 
  在合理輪作的基礎(chǔ)上,選用大豆茬、馬鈴薯茬、玉米茬,且無氟磺胺草醚、異噁草松等長殘留性除草劑的地塊,避免甜菜和向日葵茬。
 
  2、整地
 
  秋整地。要求整平耙細(xì),達(dá)到待播狀態(tài)。前茬深松25~30厘米后耙茬作業(yè)(采用 160 馬力以上的大型機(jī)械),耙深 12~15 厘米。采取對角線法,不漏耙,不拖耙,耙后地表平整,高低差不大于 3 厘米。耕整地作業(yè)后,要達(dá)到上虛下實(shí),地塊平整,地表無大土塊,耕層無暗坷垃,每平方米 2~3 厘米直徑的土塊不得超過 1~2 塊。三年深翻一次,秸稈粉碎還田。
 
  3、提前謀劃、備好種子農(nóng)藥化肥
 
  選擇正規(guī)種業(yè)公司、商店銷售的合格小麥良種,若所購買的小麥良種未進(jìn)行包衣處理,建議采用戊唑·福美雙等低毒種衣劑進(jìn)行包衣處理,防止散黑穗等病害。
 
  施肥時(shí)期:秋深施肥。一般在氣溫降到 10 度以下時(shí)進(jìn)行,施肥深度 8~10 厘米,占總肥量的 2/3~3/4。
 
  種肥:春季施種肥占總肥量的 1/3~1/4。
 
  商品化肥參考施用量:尿素 6.7~8 公斤/畝,磷酸二銨 8.7~10 公斤/畝,硫酸鉀 5.3~6.7 公斤/畝。
 
  4、 依據(jù)土壤化凍程度、適時(shí)播種
 
  在上年耕地已完成翻、耙、旋、耢平的基礎(chǔ)上,上年冬季降雪較多的地塊,在2~3月要及時(shí)耙雪散墑,防止后期化凍過深影響機(jī)械作業(yè)。根據(jù)土壤解凍程度,在土壤化凍5cm左右時(shí)進(jìn)行田間播種,東部地區(qū)播種時(shí)間為3月15日~4月5日,西部區(qū)播種時(shí)間為3月25日~4月15日。
 
  干旱地區(qū)播后及時(shí)鎮(zhèn)壓,充分利用返墑水避免土壤有效水分散失,確保苗全、苗壯、苗齊。濕潤地區(qū)在凍層化凍前完成播種,若遇到降雪情況,要及時(shí)耙雪散墑,防止后期化凍過深影響機(jī)械作業(yè),同時(shí)需根據(jù)土壤墑情狀況進(jìn)行鎮(zhèn)壓,嚴(yán)禁濕壓。
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