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重慶市農(nóng)技總站大力推進(jìn)果樹肥水(藥)一體化技術(shù)應(yīng)用
2019-12-05
08:56:23
來源:重慶市農(nóng)業(yè)農(nóng)村委員會 閱讀量:16605
評論
導(dǎo)讀:近年,肥水(藥)一體作為提高果園勞動生產(chǎn)率、實現(xiàn)化肥農(nóng)藥減施的重要技術(shù)手段,越來越受到經(jīng)營業(yè)主的喜愛,應(yīng)用面積逐年提高,截止2018年,重慶市推廣滴灌、噴灌設(shè)施62萬畝,具備肥水(藥)一體化功能應(yīng)用面積22.7萬畝,其中柑橘滴灌、噴灌設(shè)施應(yīng)用面積13.1萬畝,具備肥水(藥)一體化功能應(yīng)用面積7.3萬畝。
【農(nóng)機(jī)網(wǎng) 地方農(nóng)機(jī)】
一、重慶市果樹肥水(藥)一體化技術(shù)現(xiàn)狀
近年,肥水(藥)一體作為提高果園勞動生產(chǎn)率、實現(xiàn)化肥農(nóng)藥減施的重要技術(shù)手段,越來越受到經(jīng)營業(yè)主的喜愛,應(yīng)用面積逐年提高,截止2018年,重慶市推廣滴灌、噴灌設(shè)施62萬畝,具備肥水(藥)一體化功能應(yīng)用面積22.7萬畝,其中柑橘滴灌、噴灌設(shè)施應(yīng)用面積13.1萬畝,具備肥水(藥)一體化功能應(yīng)用面積7.3萬畝。目前,該技術(shù)在長壽、璧山、永川等區(qū)縣地形地貌相對平緩的地區(qū)能夠良好運行,達(dá)到了節(jié)省資源、節(jié)約勞動力的效果,但對于云陽、開州、奉節(jié)等山地果園因地勢高差大、地形復(fù)雜,管道壓力控制較難,其推廣應(yīng)用相對滯后。
重慶市肥水(藥)一體技術(shù)的發(fā)展經(jīng)歷了從國外引進(jìn),逐步實現(xiàn)國產(chǎn)化、輕型化和產(chǎn)業(yè)化過程,目前應(yīng)用系統(tǒng)可分為四種模式:豬-沼-果肥水一體化灌溉系統(tǒng)、肥水滴噴灌系統(tǒng)、肥水(藥)槍施系統(tǒng)、設(shè)施全智能肥水(藥)灌溉系統(tǒng)。其中肥水(藥)槍施系統(tǒng)實用性強(qiáng)、投資成本低、應(yīng)用面積大,適合中小規(guī)模果園使用。該系統(tǒng)由首部控制系統(tǒng)(肥水藥配兌配置、過濾、加壓系統(tǒng)、混相及控制系統(tǒng)),出水主管、田間支管、出水樁頭及連接軟管等田間管網(wǎng)系統(tǒng),以及田間終端施肥(噴藥)槍(除草器、修枝器等)等組成,其優(yōu)點:一是建造成本低??偼顿Y只占肥水滴噴灌系統(tǒng)的三分之一左右,結(jié)構(gòu)簡單,易維護(hù)保養(yǎng)。二是應(yīng)用功能多??蓪崿F(xiàn)施肥(水溶肥)、打藥、灌溉、修剪、除草、松土等多個功能,且勞動強(qiáng)度較低,施肥效率較傳統(tǒng)人工施肥提高3倍以上,打藥效率提高5-8倍。三是肥水利用率高。由傳統(tǒng)撒施、溝施改為槍施肥,施肥槍直接插入果樹根部的土壤中施肥,肥料利用率大大提高。
二、技術(shù)存在問題
但是,該系統(tǒng)應(yīng)用還存在一系列問題:一是管道極易堵塞。施肥完管道殘留肥液無法充分排出,導(dǎo)致綠藻滋生,堵塞管道。二是精準(zhǔn)控制難。部分果園未安裝
減壓閥,或管道壓力平衡裝置,導(dǎo)致高差大的山地果園不同區(qū)域壓力差異過大,農(nóng)戶難以精確掌握施肥量、灌水量等。三是選擇肥料少。針對不同作物的水溶性肥料品種少,并且不同品類的水溶肥料的施肥時間、施肥量等缺乏技術(shù)支撐。四是建造標(biāo)準(zhǔn)缺。缺乏肥水(藥)系統(tǒng)建設(shè)技術(shù)標(biāo)準(zhǔn),果園建設(shè)無參考依據(jù)等問題。
三、下一步工作計劃
為此,重慶市農(nóng)技總站下一步將加強(qiáng)肥水(藥)一體化技術(shù)培訓(xùn)、指導(dǎo)及試驗示范工作。首先是開展水溶肥比較試驗,通過試驗找出適宜重慶市水果生產(chǎn)的專用水溶肥,得出其水溶度、有效營養(yǎng)成分含量等技術(shù)參數(shù)和指標(biāo),為生產(chǎn)企業(yè)提供參考;其次是聯(lián)合肥水(藥)一體化設(shè)備生產(chǎn)企業(yè)、果園基地,共同制定相關(guān)技術(shù)標(biāo)準(zhǔn),為果園建設(shè)肥水藥一體系統(tǒng)提供技術(shù)支撐。三是加強(qiáng)對果園設(shè)備安裝的技術(shù)支撐、指導(dǎo)工作,尤其是建設(shè)設(shè)計、設(shè)備選型、農(nóng)機(jī)農(nóng)藝結(jié)合等,確保果園肥水(藥)一體化系統(tǒng)建成能夠正常使用,確保建成一個成功一個。
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