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江蘇蘇州吳中區(qū)無人機突破丘陵茶樹植保高難度

2021-01-18 08:59:11 來源:江蘇省蘇州市吳中區(qū)農(nóng)機推廣站 閱讀量:21761 評論

  【農(nóng)機網(wǎng) 地方農(nóng)機】 江蘇省蘇州市吳中區(qū)茶果主要種植在山地坡地上,之前大多農(nóng)戶都以人工噴灑農(nóng)藥為主,無人機植保行業(yè)未開拓,且茶樹、果樹多種植于山坡兩側(cè),地形環(huán)境復(fù)雜,種植不均,高度不一,人工噴灑效率低,存在漏噴的現(xiàn)象,這些都是病蟲害防治的主要難題。以無人機作為載體,對茶園果園進行實時監(jiān)控和病蟲害的處理,具有作業(yè)靈活、起降無需跑道,可適應(yīng)地形復(fù)雜的地形,因此無人機可以很好的應(yīng)用在茶園果園的病蟲害的治理中。
 
  但這對于無人機飛防植保的應(yīng)用提出了新的挑戰(zhàn),主要是坡地條件對于無人機的飛行路線的規(guī)劃具有一定難度。近來,吳中區(qū)農(nóng)機推廣站聯(lián)合陸舍農(nóng)機服務(wù)專業(yè)合作社,在金庭茶園進行無人機茶樹植保試驗,此試驗基于三維重建技術(shù)和圖像視覺技術(shù),利用多旋翼無人機采集茶園實時影像,其飛行平衡、抗擾行強,通過人工智能算法,重構(gòu)茶園坡地三維場景,并精準(zhǔn)識別茶樹位置,從而實現(xiàn)坡地條件下的無人機自動路徑規(guī)劃和飛防植保。如遇茶樹行距為兩米,呈等高線規(guī)整分布的情況,可在軟件內(nèi)將飛行軌跡定位于茶樹樹心以等高線為航線連續(xù)噴灑飛行。如茶樹分布零散且不均勻,可采用定點噴灑設(shè)置每株噴灑用量噴灑,如遇較為高大的樹也可用定點持續(xù)噴灑加強藥物滲透保證藥效。
 
  此試驗取得了顯著的成效,主要體現(xiàn)在三方面:
 
  一是經(jīng)濟效益: 就勞動力成本,人工每日可作業(yè)茶樹的規(guī)模是10畝每人單價200元。然而利用無人機每日可以對茶樹噴灑農(nóng)藥的范圍180畝左右。而無人機植保的價格為15元/畝,無人機噴灑的農(nóng)藥量比人工噴灑的農(nóng)藥量可節(jié)省約30%,時間成本可節(jié)約4.5倍,經(jīng)濟效益高,可以為農(nóng)戶節(jié)約種植成本,提高利潤率。
 
  二是社會效益:無人機植保可大大緩解目前勞動力欠缺、老齡化嚴(yán)重等問題,年齡偏大勞動力不宜上山作業(yè)、人藥分離的作業(yè)模式,均降低了作業(yè)者的人身安全風(fēng)險。
 
  三是生態(tài)效益: 無人機植保的方式減少了藥物噴灑量,提高藥液使用率,降低農(nóng)藥的污染,響應(yīng)綠色防控號召,推進農(nóng)業(yè)現(xiàn)代化,智能化發(fā)展,實現(xiàn)精準(zhǔn)化農(nóng)業(yè),促進可持續(xù)發(fā)展。
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