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地點: 廣州市
開展時間: 2025-02-25
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2024年大豆春季科學(xué)施肥指導(dǎo)意見
2024-04-07
08:45:10
來源:全國農(nóng)業(yè)技術(shù)推廣服務(wù)中心 閱讀量:10785
評論
導(dǎo)讀:充分利用測土配方施肥技術(shù)成果,科學(xué)確定施肥量,確保玉米養(yǎng)分需求,兼顧大豆需肥。堅持協(xié)同高效原則,統(tǒng)籌基肥、種肥和追肥。
【農(nóng)機網(wǎng) 科技創(chuàng)新】
東北大豆
包括遼寧省、吉林省、黑龍江省、內(nèi)蒙古自治區(qū)等。
(一)施肥原則
1、施足基肥,包括有機肥和磷肥,根據(jù)地力情況適當(dāng)添加氮肥和鉀肥。米豆輪作栽培方式,可在前茬作物施用有機肥,大豆利用其后效。
2、采用拌種、包衣、噴施等方式接種大豆根瘤菌,促進生物固氮,減少氮肥用量。
3、秸稈還田條件下,適當(dāng)減少鉀肥用量;玉米改種大豆區(qū)域和米豆輪作區(qū)域可大幅減少化肥用量;大豆連作區(qū)域應(yīng)科學(xué)補施硼、鉬、鋅、鎂等中微量元素肥料,控制土壤酸度。
4、種肥以磷為主,配施氮肥,推薦采取側(cè)深施肥或分層施肥技術(shù)。推薦施用大豆專用肥,在偏酸土壤上,選擇生理堿性肥料或生理中性肥料,磷肥可選擇鈣鎂磷肥。有條件的地方推薦采用水肥一體化技術(shù)。
5、適當(dāng)補施硼肥和鉬肥,在缺素癥狀較輕地區(qū),鉬肥可與根瘤菌劑混合拌種,提高結(jié)瘤效率。
(二)施肥建議
1、依據(jù)大豆養(yǎng)分需求,高肥力土壤氮磷鉀(N-P2O5-K2O)施用比例為1:1.2:(0.5—0.8);中肥力土壤氮磷鉀施用比例為1:1:(0.6—0.9);低肥力土壤可適當(dāng)增加氮鉀用量,氮磷鉀施用比例為1.2:1:(0.7—1.0)。
2、產(chǎn)量水平140—160公斤/畝,施用氮肥(N)3—4公斤/畝、磷肥(P2O5)2.5—3.5公斤/畝、鉀肥(K2O)2—3公斤/畝。
3、產(chǎn)量水平160—180公斤/畝,施用氮肥(N)3.5—4.5公斤/畝、磷肥(P2O5)3.5—4.5公斤/畝、鉀肥(K2O)2.5—3.5公斤/畝。
4、產(chǎn)量水平180公斤/畝以上,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。
5、根據(jù)大豆長勢,可在開花期或結(jié)莢期進行追肥,追肥中氮占總施氮量的40%,磷鉀肥占施用總量的30%;不追肥田塊,基肥中40%以上的氮肥選用緩控釋型。如果后期大豆脫肥可結(jié)合防病噴施0.5%—2%尿素溶液1—2次。土壤肥力較高,基肥、種肥充足,大豆生長健壯的地塊,可以不用追肥,但應(yīng)防止徒長倒伏。
6、根據(jù)大豆長勢,推薦在初花期或結(jié)莢期噴施1—2次0.01%—0.05%鉬酸鹽溶液30—40公斤/畝;在大豆鼓粒初期,可噴施0.3%—0.5%尿素溶液或0.2%—0.3%磷酸二氫鉀溶液40—50公斤/畝,也可在花莢期噴施1—2次0.1%的鎂、硼、錳、銅、鋅等中微量元素溶液30—40公斤/畝。
7、推薦采用側(cè)深施肥技術(shù),施肥位置在種子側(cè)方6—8厘米,種子下方5—8厘米;也可采用分層施肥,肥料在種子下方3—4厘米占1/3,6—8厘米占2/3。
黃淮海大豆
包括北京市、天津市、山東省、河北省、河南省、江蘇省和安徽省等。
(一)施肥原則
1、充分利用測土配方施肥成果,科學(xué)控制氮肥用量,合理施用有機肥和磷鉀肥,推薦采用水肥一體化技術(shù),統(tǒng)籌基肥、種肥和追肥。
2、采用拌種、包衣、噴施等方式接種根瘤菌,促進生物固氮,減少氮肥用量。
3、種肥以磷肥為主,配施氮肥,一次性施用,采用種肥側(cè)深施或分層施肥技術(shù)。
4、根據(jù)土壤養(yǎng)分狀況,科學(xué)施用硼、鉬、錳和鋅等微量元素肥料。
(二)施肥建議
1、依據(jù)大豆養(yǎng)分需求,高肥力土壤氮磷鉀(N-P2O5-K2O)施用比例為1:2:1.5,中肥力土壤氮磷鉀施用比例為1:1.8:1.3,低肥力土壤氮磷鉀施用比例為1:1.5:1.2。
2、基肥推薦每畝施用1000—2000公斤腐熟有機肥或150—250公斤商品有機肥。
3、產(chǎn)量水平160—210公斤/畝,施用氮肥(N)2—3公斤/畝、磷肥(P2O5)3—4.5公斤/畝、鉀肥(K2O)2.5—3.5公斤/畝。
4、產(chǎn)量水平210—260公斤/畝,施用氮肥(N)2.5—3.5公斤/畝、磷肥(P2O5)4—5.5公斤/畝、鉀肥(K2O)3—4.5公斤/畝。
5、產(chǎn)量水平260公斤/畝以上,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。
6、根據(jù)大豆長勢,可在開花期、結(jié)莢期或鼓粒期追施氮肥;不追肥田塊基肥中40%以上的氮肥選用緩控釋型。后期大豆脫肥可結(jié)合防病噴施0.5%—2%尿素溶液1—2次。土壤肥力較高,基肥、種肥充足,大豆生長健壯的地塊,可以不用追肥,但應(yīng)防止徒長倒伏。
7、根據(jù)大豆長勢,在初花期或結(jié)莢期噴施1—2次0.01%—0.05%鉬酸鹽溶液30—40公斤/畝;在大豆鼓粒初期,噴施0.2%—0.5%尿素溶液或0.2%—0.3%磷酸二氫鉀溶液30—40公斤/畝,也可在花莢期噴施1—2次0.1%的硼、錳、銅、鋅等微量元素溶液30—40公斤/畝。
8、推薦采取側(cè)深施肥技術(shù),施肥位置在種子側(cè)方6—8厘米,種子下方5—8厘米;也可采用分層施肥,肥料在種子下方3—4厘米占1/3,6—8厘米占2/3。
大豆-玉米帶狀復(fù)合種植
(一)施肥原則
1、充分利用測土配方施肥技術(shù)成果,科學(xué)確定施肥量,確保玉米養(yǎng)分需求,兼顧大豆需肥。堅持協(xié)同高效原則,統(tǒng)籌基肥、種肥和追肥。玉米注重氮肥施用,保證單株施氮量與當(dāng)?shù)貑巫飨嗤羰褂脦顝?fù)合種植
播種機適當(dāng)增加下肥量;大豆注重磷鉀肥施用。
2、大豆推薦根瘤菌劑拌種,促進生物固氮,減少氮肥用量。
3、根據(jù)土壤養(yǎng)分狀況,基肥增施有機肥料,玉米適當(dāng)施用鋅肥等微量元素肥料,大豆科學(xué)施用硼肥、鉬肥等微量元素肥料。
4、間作時可選用緩控釋配方肥,玉米選擇高氮型,大豆選擇低氮型,實現(xiàn)一次性施肥。玉米灌漿和大豆結(jié)莢期可適當(dāng)噴施葉面肥,提高粒重。
5、推薦采用水肥一體化技術(shù),大豆、玉米分別灌溉。
(二)施肥建議
1、西南地區(qū)
包括云南、貴州兩省大部,湖南和廣西的西部,四川的西南部。該區(qū)域大豆-玉米帶狀復(fù)合種植方式為套作和間作。
(1)玉米推薦30-9-6(N-P2O5-K2O)或相近配方,大豆推薦10-20-15(N-P2O5-K2O)或相近配方。
(2)基肥推薦每畝施用1000—1500公斤腐熟有機肥或150—200公斤商品有機肥。
(3)玉米產(chǎn)量水平500—600公斤/畝,間作時,玉米種肥施配方肥20—25公斤/畝,大喇叭口期在行間追施尿素13—15公斤/畝,大豆種肥施配方肥15—20公斤/畝;套作時,玉米種肥施配方肥20—25公斤/畝,大喇叭口期距離玉米帶外側(cè)20—25厘米處追施配方肥(10-20-15)45—50公斤/畝。
(4)玉米產(chǎn)量水平600—700公斤/畝,間作時,玉米種肥施配方肥25—30公斤/畝,大喇叭口期在行間追施尿素15—18公斤/畝,大豆種肥施配方肥20—25公斤/畝;套作時,玉米種肥施配方肥25—30公斤/畝,大喇叭口期距離玉米帶外側(cè)20—25厘米處追施配方肥(10-20-15)50—60公斤/畝。
(5)玉米產(chǎn)量水平700公斤/畝以上,間作時,玉米種肥施配方肥30—35公斤/畝,大喇叭口期在行間追施尿素18—20公斤/畝,大豆種肥施配方肥25—30公斤/畝;套作時,玉米種肥施配方肥30—35公斤/畝,大喇叭口期距離玉米帶外側(cè)20—25厘米處追施配方肥(10-20-5)60—65公斤/畝。
(6)根據(jù)大豆長勢,在初花期和結(jié)莢期噴施2—3次0.01%—0.05%鉬酸鹽溶液30—40公斤/畝。在大豆鼓粒初期,可噴施0.2%—0.5%尿素溶液或0.2%—0.3%磷酸二氫鉀溶液40—50公斤/畝,也可在花莢期噴施1—2次0.1%的硼、錳、銅、鋅等微量元素溶液30—50公斤/畝。
2、西北地區(qū)
包括河北、山西、陜西三省北部以及內(nèi)蒙古自治區(qū)、寧夏回族自治區(qū)、甘肅省、青海省和新疆維吾爾自治區(qū)。該區(qū)域大豆-玉米帶狀復(fù)合種植方式主要為間作。
(1)玉米推薦30-8-7(N-P2O5-K2O)或相近配方,大豆推薦10-20-15(N-P2O5-K2O)或相近配方。
(2)基肥推薦每畝施用1000—1500公斤腐熟有機肥或150—200公斤商品有機肥。
(3)玉米產(chǎn)量水平500—600公斤/畝,玉米種肥施配方肥30—35公斤/畝,大喇叭口期在行間追施尿素15—18公斤/畝;大豆種肥施配方肥15—20公斤/畝。
(4)玉米產(chǎn)量水平600—700公斤/畝,玉米種肥施配方肥35—40公斤/畝,大喇叭口期在行間追施尿素18—20公斤/畝;大豆種肥施配方肥20—25公斤/畝。
(5)玉米產(chǎn)量水平700公斤/畝以上,玉米種肥施配方肥40—45公斤/畝,大喇叭口期在行間追施尿素20—22公斤/畝;大豆種肥施配方肥25—30公斤/畝。
(6)根據(jù)大豆長勢,在初花期和結(jié)莢期噴施2—3次0.01%—0.05%鉬酸鹽溶液30—40公斤/畝。在大豆鼓粒初期,可噴施0.2%—0.5%尿素溶液或0.2%—0.3%磷酸二氫鉀溶液40—50公斤/畝,也可在花莢期噴施1—2次0.1%的硼、錳、銅、鋅等微量元素溶液30—50公斤/畝。
3、黃淮海地區(qū)
包括北京市、天津市、山東省、河北省、河南省、江蘇省和安徽省。該區(qū)域玉米—大豆帶狀復(fù)合種植方式主要為間作。
(1)玉米推薦30-7-8(N-P2O5-K2O)或相近配方,大豆推薦10-20-15(N-P2O5-K2O)或相近配方。
(2)基肥推薦每畝施用1000—2000公斤腐熟有機肥或150—250公斤商品有機肥。
(3)玉米產(chǎn)量水平500—600公斤/畝,玉米種肥施配方肥20—25公斤/畝,大喇叭口期在行間追施尿素13—15公斤/畝;大豆種肥施配方肥15—20公斤/畝。
(4)玉米產(chǎn)量水平600—700公斤/畝,玉米種肥施配方肥25—30公斤/畝,大喇叭口期在行間追施尿素15—18公斤/畝;大豆種肥施配方肥20—25公斤/畝。
(5)玉米產(chǎn)量水平700公斤/畝以上,玉米種肥施配方肥30—35公斤/畝,大喇叭口期在行間追施尿素18—20公斤/畝;大豆種肥施配方肥25—30公斤/畝。
(6)根據(jù)大豆長勢,在初花期和結(jié)莢期噴施2—3次0.01%—0.05%鉬酸鹽溶液30—40公斤/畝。在大豆鼓粒初期,可噴施0.3%—0.5%尿素溶液或0.2%—0.3%磷酸二氫鉀溶液40—50公斤/畝,也可在花莢期噴施1—2次0.1%的硼、錳、銅、鋅等微量元素溶液30—40公斤/畝。
來源:農(nóng)業(yè)農(nóng)村部種植業(yè)管理司、全國農(nóng)業(yè)技術(shù)推廣服務(wù)中心、農(nóng)業(yè)農(nóng)村部科學(xué)施肥專家指導(dǎo)組
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