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2024年南方秋冬季馬鈴薯科學(xué)施肥指導(dǎo)意見(jiàn)

2024-10-11 08:36:59 來(lái)源:全國(guó)農(nóng)技推廣中心 閱讀量:13516 評(píng)論

導(dǎo)讀:依據(jù)測(cè)土結(jié)果和目標(biāo)產(chǎn)量,參照《全國(guó)馬鈴薯產(chǎn)區(qū)氮肥定額用量(試行)》,合理調(diào)控氮、磷、鉀肥用量,依據(jù)土壤肥力條件優(yōu)化氮磷鉀化肥用量。

  施肥原則
 
  針對(duì)南方秋冬季馬鈴薯種植過(guò)程中有機(jī)肥和鉀肥施用不足等問(wèn)題,提出以下施肥原則:
 
  1、依據(jù)測(cè)土結(jié)果和目標(biāo)產(chǎn)量,參照《全國(guó)馬鈴薯產(chǎn)區(qū)氮肥定額用量(試行)》,合理調(diào)控氮、磷、鉀肥用量,依據(jù)土壤肥力條件優(yōu)化氮磷鉀化肥用量。
 
  2、有機(jī)無(wú)機(jī)配施,增施有機(jī)肥,提倡秸稈覆蓋;忌用沒(méi)有充分腐熟的有機(jī)肥料。
 
  3、適當(dāng)增施鉀肥。
 
  4、基肥、追肥結(jié)合,追肥以氮鉀肥為主。
 
  5、肥料施用應(yīng)與綠色增產(chǎn)增效栽培技術(shù)相結(jié)合。
 
  施肥建議
 
  1、產(chǎn)量水平3000公斤/畝以上,氮肥(N)11—14公斤/畝,磷肥(P2O5)10—12公斤/畝,鉀肥(K2O)12—15公斤/畝。
 
  2、產(chǎn)量水平2000—3000公斤/畝,氮肥(N)9—11公斤/畝,磷肥(P2O5)7—9公斤/畝,鉀肥(K2O)10—12公斤/畝。
 
  3、產(chǎn)量水平1500—2000公斤/畝,氮肥(N)7—9公斤/畝,磷肥(P2O5)5—7公斤/畝,鉀肥(K2O)7—10公斤/畝。
 
  4、產(chǎn)量水平1500公斤/畝以下,氮肥(N)6—7公斤/畝,磷肥(P2O5)3—5公斤/畝,鉀肥(K2O)5—7公斤/畝。
 
  5、推薦13—15—17(N—P2O5—K2O)或相近配方作基肥,尿素與硫酸鉀(或氮鉀復(fù)合肥)作追肥;也可選擇15—5—20或相近配方做追肥;施用配方肥(基肥)用量40—50公斤/畝。
 
  6、每畝施用2—3方腐熟農(nóng)家肥作基肥,或每畝施用有機(jī)肥200—400公斤;若基肥施用有機(jī)肥,可酌情減少化肥用量15—20%;氮鉀肥40%—50%作基肥,50%—60%作追肥,磷肥全部作為基肥,對(duì)于土壤質(zhì)地偏砂的田塊,鉀肥應(yīng)分次施用;對(duì)于硼或鋅缺乏的土壤,可基施硼砂1公斤/畝或硫酸鋅1—2公斤/畝;酸性土壤或有效鈣、鎂缺乏的土壤,適當(dāng)增加鈣鎂投入。
 
  7、冬季低溫天氣,可適當(dāng)增施有機(jī)肥及磷肥。
 
  來(lái)源:農(nóng)業(yè)農(nóng)村部種植業(yè)管理司、全國(guó)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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