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在美國,無人機精準點噴除草,每英畝增收17 美元

2022-10-25 13:10:14 來源:DJI大疆農業 閱讀量:20288 評論

  【農機網 明星企業】美國是世界上最大的大豆生產國和第二大出口國,當地農戶為保護耕地,往往選擇大豆、玉米輪作的種植方式,這樣可以有效利用大豆的固氮能力,提高土壤肥力。然而,也正因為輪作的方式,在玉米收獲季,從聯合收割機中掉落的玉米粒越冬后,會在春天發芽,與輪作的大豆搶奪營養、陽光和水分,導致大豆減產。
 
  大豆田里的玉米雜草比其他雜草都更具破壞性,在美國大約 70% 的玉米都是抗草甘膦的轉基因作物,對除草劑有很強抗性。常規的大豆除草作業并不能防除玉米雜草,因此對抗豆田里的雜草玉米也成了當地農戶棘手的難題。
 
大豆田中的玉米苗
 
  來自美國愛荷華州的農戶 Kyle Miller,家里擁有 2000 英畝的農田。以往 Miller 通常使用拖拉機進行全田噴灑,不僅浪費農藥,還會導致軋苗、土壤壓實,造成產量減少。
 
  了解到大疆農業精準解決方案可以針對性點噴除草,能在節省農藥的同時帶來更高的經濟效益,Miller 這次決定使用 DJI + Agremo的聯合解決方案來驗證精準除草的效果。
 
  大疆精準農業+Ai識別解決方案
 
  點噴準確率超 95%
 
  Miller 首先使用精靈 4 多光譜版采集農田可見光和多光譜影像,通過 Agremo 拼接生成正射影像圖,基于 Ai 人工智能分析,可有效檢測雜草,并根據雜草嚴重程度劃分為“無雜草、輕度雜草、重度雜草”三個程度的點噴處方圖,隨后大疆 T30 根據處方圖開始噴灑作業,半小時便完成雜草點噴處理。作業結束后,通過實地抽樣檢測,結果顯示:本次精準作業點噴準確率超過 95%。
 
精靈4 多光譜無人機進行全田監測
 
Agremo玉米苗雜草檢測結果
 
  無人機精準點噴除草
 
  每英畝增收 17.8 美元
 
  根據研究測算表明,大豆田中分布的單株玉米和連片玉米,將分別造成 15% 和 60% 的減產。Miller 家 65 英畝(1英畝≈6畝)的大豆田,預計產量為 3250 蒲式耳(1蒲式耳≈27公斤,50 蒲式耳/英畝),如果不對玉米雜草做處理,將造成總計 208.1 蒲式耳的減產。以每蒲式耳 15 美元的價格計算,Miller 將遭受 3122 美元的損失。
 
  而使用 Agremo 和大疆數字農業解決方案,Miller 最終只需噴灑全田 60% 的面積,節省了大筆費用。
 
  拖拉機全田噴灑與
 
  大疆數字農業+Agremo 解決方案收益對比
 


 

  以每英畝 7 美元的除草劑價格,對整塊 65 英畝的農田進行噴灑的成本為 455 美元;另外,因拖拉機壓實土壤造成的產值損失達 975 美元。
 
  拖拉機噴灑收益=$3122(除草的增產收益)-$455(除草劑成本)-$975(產量損失)=$1692
 
  大疆T30農業無人飛機由于只需噴灑 Agremo AI 識別的地方,因此 Miller 只需要花費 60% 的除草劑成本 273 美元。此外,沒有了拖拉機碾壓作物造成的損失,因此產量更高。

  大疆T30噴灑收益=$3122(除草的增產收益)-$273(除草劑成本)=$2849
 
  因此,本次無人機精準點噴技術的應用有效減少了除草劑處理所需的藥量和成本,也避免了因駕駛拖拉機造成的碾軋損失,無人機點噴相比拖拉機全田噴灑,每英畝可增收17.8 美元。
 
  與合作伙伴共建智慧農業生態
 
  本次大疆農業的合作伙伴 Agremo 是來自塞爾維亞農業科技公司,專注為全球種植者提供基于無人機影像的 AI 智能分析,以提供有關植物和田地的數據信息。
 
  “讓科技之美超越想象”,大疆農業愿意與所有機構開放合作,深度協同資源、數據互聯,為更多用戶提供全流程的解決方案,以更先進和包容的技術,共同構建智慧農業生態。
 
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