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全國(guó)農(nóng)技中心印發(fā)《大豆水肥一體化單產(chǎn)提升技術(shù)方案》

2024-06-25 08:45:09 來源:全國(guó)農(nóng)業(yè)技術(shù)推廣服務(wù)中心 閱讀量:15869 評(píng)論

導(dǎo)讀:為服務(wù)大豆單產(chǎn)提升工程,推進(jìn)大豆大面積均衡增產(chǎn),全國(guó)農(nóng)技中心特制定本技術(shù)方案。

  【農(nóng)機(jī)網(wǎng) 熱點(diǎn)關(guān)注】 通過水肥一體化技術(shù)及時(shí)有效科學(xué)滿足大豆水肥需求,是當(dāng)前大豆單產(chǎn)提升的關(guān)鍵措施,對(duì)支撐新一輪千億斤產(chǎn)能提升工程、夯實(shí)國(guó)家糧食安全根基意義重大。為服務(wù)大豆單產(chǎn)提升工程,推進(jìn)大豆大面積均衡增產(chǎn),全國(guó)農(nóng)技中心特制定本技術(shù)方案。
 
  主要適宜區(qū)域
 
  適宜有水源條件的大豆產(chǎn)區(qū),如東北和西北春大豆、黃淮海和長(zhǎng)江流域夏大豆種植區(qū)等。宜采用滴灌等方式精準(zhǔn)灌溉施肥,播后滴水出苗確保苗全苗齊,全程按需分次均衡施用,確保水肥精準(zhǔn)供應(yīng)。同時(shí)集成科學(xué)選種、合理密植、根瘤菌接種和病蟲害防控等配套措施。與當(dāng)?shù)爻R?guī)相比,采用水肥一體化技術(shù)強(qiáng)化水肥精準(zhǔn)施用,力爭(zhēng)實(shí)現(xiàn)畝均單產(chǎn)提高20公斤以上。采用玉米大豆帶狀復(fù)合種植模式,在保持玉米施肥強(qiáng)度基礎(chǔ)上,可適當(dāng)減少大豆用肥,提倡根瘤菌劑包衣或拌種,強(qiáng)化生物固氮,減少氮肥用量,注重磷鉀肥施用。
 
  關(guān)鍵技術(shù)要點(diǎn)
 
  (一)春大豆區(qū)。主要是北方春大豆區(qū),如西遼河流域、松嫩平原西部、大興安嶺山前平原等東北春大豆區(qū),新疆、河西走廊等西北春大豆區(qū),在具有灌溉條件地區(qū)適宜推廣淺埋滴灌、膜下滴灌等技術(shù)實(shí)現(xiàn)水肥一體化管理。
 
  1. 精細(xì)整地科學(xué)播種。一是精細(xì)整地。整地要掌握好“平、碎、勻”,建議深翻30厘米以上,打破犁底層,適時(shí)耙地,做到耕層上虛下實(shí),地面平整。二是起壟鋪管。將傳統(tǒng)的壟上雙行改為壟上4行,采用寬窄行種植模式,小行距20—30厘米,大行距30—50厘米,小流量滴灌帶宜鋪設(shè)在窄行中間,大流量可鋪設(shè)在寬行中間。三是種子處理。選用適宜品種,推廣根瘤菌接種技術(shù),針對(duì)當(dāng)?shù)刂饕∠x害發(fā)生情況,選擇適宜的種衣劑包衣,包衣劑所選材料應(yīng)對(duì)根瘤菌無害。四是科學(xué)播種。耕層5—10厘米地溫穩(wěn)定在10—12℃時(shí)適時(shí)播種,適水增密,墑情不足時(shí)播后立即滴水,提高出苗率和出苗質(zhì)量。
 
  2. 水肥協(xié)同精準(zhǔn)調(diào)控。一是水肥一體化系統(tǒng)。主要有水源、首部樞紐、輸配水管網(wǎng)和滴灌管(帶)組成。滴灌設(shè)備的規(guī)格和型號(hào)根據(jù)生產(chǎn)實(shí)際進(jìn)行選擇,滴灌灌水器出水量一般在1.0—2.5升/小時(shí)之間。首部樞紐包括加壓、過濾和灌溉施肥等設(shè)施設(shè)備。二是灌溉施肥策略。全生育期一般灌水3—6次,每次灌水量10—30方/畝。播種后可根據(jù)墑情狀況滴灌出苗水,在分枝期、初花期、盛花期、結(jié)莢期和鼓粒期結(jié)合降雨情況灌水,滴灌時(shí)地表濕土邊緣超過播種行5—10厘米即可,勿過量灌溉。采用水肥一體化高產(chǎn)地塊一般施用氮肥(N)3.5—4.5公斤/畝、磷肥(P2O5)4.5—5.5公斤/畝、鉀肥(K2O)3—4公斤/畝,30%氮鉀和70%的磷肥做底肥。70%氮鉀和30%的磷肥于初花期至結(jié)莢期分別隨水追施??山Y(jié)合追肥,適當(dāng)補(bǔ)施硼肥和鉬肥等微量元素水溶肥。
 
  3. 其他配套措施。一是雜草防除“封定結(jié)合”。采用播后芽前封閉與苗后莖葉定向噴藥相結(jié)合的方法防除雜草。二是中耕提苗。齊苗后至封壟前進(jìn)行3次中耕作業(yè),可有效提高苗情質(zhì)量。三是“一噴多促”。視大豆長(zhǎng)勢(shì)適時(shí)葉面噴施磷酸二氫鉀、鉬酸銨等液體肥及殺蟲劑、殺菌劑等,實(shí)現(xiàn)一噴多效。旺長(zhǎng)地塊,可在初花期噴施烯效唑等化控劑進(jìn)行控旺處理。四是適時(shí)收獲。待葉片落凈,豆粒歸圓時(shí)及時(shí)機(jī)械收獲,防止炸莢造成產(chǎn)量損失。
 
  (二)夏大豆區(qū)。主要是黃淮流域和長(zhǎng)江流域夏大豆區(qū),包括北京、天津、河南、山東、江蘇、安徽、湖北、四川盆地、陜西關(guān)中地區(qū)和山西汾河谷地等,適宜采用地面滴灌等方式實(shí)現(xiàn)水肥一體化管理。
 
  1. 優(yōu)選品種適水增密。一是精選品種。選擇高產(chǎn)、優(yōu)質(zhì)、抗倒性好、抗病性強(qiáng)、適合機(jī)械化收獲的大豆品種。播前做好種子精選,建議選用精甲霜靈?咯菌腈為基礎(chǔ)配方的種衣劑進(jìn)行包衣,采用拌種、包衣、噴施等方式接種根瘤菌,促進(jìn)生物固氮。二是合理增密。水資源條件良好區(qū)域,大豆保苗密度可在常規(guī)密度基礎(chǔ)上每畝提高1000株,耐密品種或者晚播地塊也應(yīng)適當(dāng)增加密度。三是滴水出苗。麥?zhǔn)蘸笾苯用飧坎シN,播種深度一般3—5厘米,土壤粘重地塊適當(dāng)淺播;播后通過滴灌管(帶)灌水,干播濕出實(shí)現(xiàn)一播全苗。
 
  2. 水肥一體化管道鋪設(shè)。主要有水源、首部樞紐、主管、支管和滴灌管(帶)組成。滴灌設(shè)備的規(guī)格和型號(hào)根據(jù)生產(chǎn)實(shí)際進(jìn)行選擇,滴灌灌水器出水量一般在1.0—2.5升/小時(shí)之間。首部樞紐包括加壓、過濾和灌溉施肥等設(shè)施設(shè)備。40厘米等行距模式播種的大豆,采用1條滴灌帶控制2行大豆;20厘米+40厘米寬窄行模式播種的大豆,滴灌帶布置在窄行中間。
 
  3. 灌溉施肥策略。一是水分調(diào)控。根據(jù)降雨情況,全生育期灌水3-5次。大豆苗期需水少,花莢期和鼓粒期需水量大,播種48小時(shí)內(nèi)即滴灌出苗水,地表濕土邊緣超過播種行5—10厘米即可,為防止板結(jié)可在種子頂土?xí)r再滴灌1次;開花期、結(jié)莢期和鼓粒期根據(jù)墑情滴灌2—3次,一般每次灌水量15—30方/畝。二是養(yǎng)分調(diào)控。高產(chǎn)田塊一般施用氮肥(N)3—4公斤/畝、磷肥(P2O5)5.5—7.5公斤/畝、鉀肥(K2O)4—5.5公斤/畝。播種時(shí)每畝可施用大豆配方肥15—20公斤作種肥。在開花期、結(jié)莢期或鼓粒期分次隨水滴施追肥??稍诔趸ㄆ诨蚪Y(jié)莢期噴施1—2次0.01%—0.05%鉬酸鹽溶液或1—2次0.1%的硼、錳、銅、鋅等微量元素溶液30—40公斤/畝。
 
  4. 其他配套措施。一是綠色防控。建議播種后進(jìn)行封閉除草,無封閉除草或封閉除草效果不理想的田塊,可在大豆2—3片復(fù)葉期進(jìn)行苗后除草。針對(duì)重點(diǎn)病蟲害,開展統(tǒng)防統(tǒng)治。二是低損收獲。選用大豆專用收割機(jī)或者配備大豆專用收獲專用割臺(tái)的收割機(jī)收獲。使用稻麥?zhǔn)崭顧C(jī)收獲時(shí),確保使用大豆專用篩子。
 
  重點(diǎn)任務(wù)
 
  (一)開展技術(shù)集成示范。在已建或新建高標(biāo)準(zhǔn)農(nóng)田、具備高效節(jié)水灌溉條件的區(qū)域,大力推廣應(yīng)用大豆水肥一體化技術(shù),將高效節(jié)水灌溉設(shè)備優(yōu)勢(shì)轉(zhuǎn)化為大豆產(chǎn)能優(yōu)勢(shì)。結(jié)合綠色高產(chǎn)高效、大豆單產(chǎn)提升工程等項(xiàng)目,集中連片開展大豆水肥一體化提單產(chǎn)創(chuàng)高產(chǎn)技術(shù)集成示范。
 
  (二)集成區(qū)域技術(shù)模式。聚合科教單位、企業(yè)等資源,參考大豆水肥一體化技術(shù)模式要點(diǎn),圍繞不同灌溉方式、灌水量、施肥量等進(jìn)行對(duì)比,優(yōu)化技術(shù)參數(shù),配套品種、栽培等措施,集成屬地化的大豆水肥一體化技術(shù)模式,提高針對(duì)性和實(shí)用性,實(shí)現(xiàn)水肥效率和大豆單產(chǎn)雙提升目標(biāo)。
 
  (三)開展技術(shù)指導(dǎo)培訓(xùn)。將水肥一體化技術(shù)作為大豆提單產(chǎn)創(chuàng)高產(chǎn)的重要技術(shù),動(dòng)員各級(jí)農(nóng)技推廣人員、科研院校專家、社會(huì)化服務(wù)組織等深入田間,及時(shí)開展技術(shù)指導(dǎo),幫助農(nóng)民解決生產(chǎn)問題。線上線下多種形式舉辦技術(shù)培訓(xùn),講解技術(shù)關(guān)鍵要點(diǎn),提高農(nóng)技人員和農(nóng)民種植技能。
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