在zai水shui資zi源yuan緊jin缺que現xian狀zhuang下xia,節jie水shui灌guan溉gai是shi全quan球qiu關guan注zhu的de焦jiao點dian。用yong現xian代dai節jie水shui灌guan溉gai代dai替ti傳chuan統tong的de依yi靠kao水shui管guan引yin水shui澆jiao灌guan和he人ren工gong噴pen灑sa等deng落luo後hou方fang式shi勢shi在zai必bi行xing。為wei此ci,筆bi者zhe針zhen對dui節jie水shui灌guan溉gai技ji術shu在zai花hua卉hui行xing業ye的de應ying用yong優you勢shi及ji存cun在zai問wen題ti進jin行xing以yi下xia探tan討tao。
節水灌溉技術優勢
節水灌溉優勢體現在:1.節水。目前,大部分花卉企業還采用人工水管澆水,這種方式不但澆灌不均勻而且存在大量浪費水的問題。如果采用插件、滴灌、小管出流方式,可以提高澆灌均勻度,比人工澆灌省水50%至70%。2.省工。節省勞動量最大可達90%以(yi)上(shang)。如(ru)今(jin)人(ren)工(gong)成(cheng)本(ben)不(bu)斷(duan)攀(pan)高(gao),雇(gu)工(gong)不(bu)易(yi)。如(ru)果(guo)采(cai)用(yong)節(jie)水(shui)灌(guan)溉(gai),可(ke)以(yi)最(zui)大(da)限(xian)度(du)節(jie)省(sheng)人(ren)工(gong)勞(lao)動(dong),提(ti)高(gao)人(ren)工(gong)使(shi)用(yong)效(xiao)率(lv)。如(ru)果(guo)配(pei)合(he)自(zi)動(dong)控(kong)製(zhi)器(qi)或(huo)可(ke)編(bian)程(cheng)控(kong)製(zhi)器(qi)、變頻器,則可大大減少人力投入。3.可改變種植結構。屋頂綠化、立體花壇在實際中應用越來越多,利用微灌與滴灌相結合技術推廣立體綠化,成效顯著。4.水肥一體化建設。水肥耦合是目前灌溉的一大熱點,在灌水的同時,按花卉不同生長期的需要,將施肥、打藥同步進行。5.gaishanxiaohuanjing。duiyubunaigaoshihuanjingdehuahui,kecaiyongdiguanfangshi,duiyuxihuanshidudadehuahuicaiyongweipen,penguanhaikeyiqidaojiangwendezuoyong,conggaishanzhizhujubuxiaohuanjing。
目前花卉企業在節水灌溉技術應用已經越來越多,但在使用中存在以下誤區。
1.對灌溉產品的理解不充分。
節(jie)水(shui)灌(guan)溉(gai)前(qian)期(qi)會(hui)有(you)部(bu)分(fen)投(tou)入(ru),後(hou)期(qi)還(hai)需(xu)維(wei)護(hu),這(zhe)給(gei)花(hua)卉(hui)企(qi)業(ye)設(she)置(zhi)了(le)一(yi)道(dao)障(zhang)礙(ai)。比(bi)如(ru)滴(di)水(shui)器(qi)的(de)流(liu)道(dao)非(fei)常(chang)精(jing)細(xi),對(dui)水(shui)質(zhi)要(yao)求(qiu)很(hen)高(gao),在(zai)建(jian)造(zao)時(shi)需(xu)要(yao)搭(da)配(pei)采(cai)用(yong)過(guo)濾(lv)係(xi)統(tong)。其(qi)實(shi)隻(zhi)要(yao)設(she)計(ji)得(de)當(dang),過(guo)濾(lv)係(xi)統(tong)的(de)投(tou)入(ru)並(bing)不(bu)會(hui)很(hen)高(gao),維(wei)護(hu)及(ji)時(shi)可(ke)延(yan)長(chang)過(guo)濾(lv)係(xi)統(tong)的(de)使(shi)用(yong)年(nian)限(xian),完(wan)全(quan)可(ke)以(yi)彌(mi)補(bu)非(fei)節(jie)水(shui)灌(guan)溉(gai)方(fang)式(shi)的(de)人(ren)工(gong)、水費投入。據了解,自壓滴箭式滴灌係統需投資約2000元/畝,微噴灌係統需投資約1000元/畝,人工點灌係統僅需投資約300元/畝。費用不是很高,後期效益卻很大。
2.在灌溉製度的製定和用水管理上沒有很好結合種植作物的特性。
花(hua)卉(hui)企(qi)業(ye)應(ying)按(an)照(zhao)不(bu)同(tong)植(zhi)物(wu)不(bu)同(tong)生(sheng)長(chang)期(qi)的(de)需(xu)水(shui)需(xu)肥(fei)的(de)要(yao)求(qiu)製(zhi)定(ding)灌(guan)溉(gai)製(zhi)度(du),一(yi)味(wei)追(zhui)求(qiu)節(jie)水(shui)並(bing)不(bu)科(ke)學(xue)。在(zai)盆(pen)栽(zai)花(hua)卉(hui)中(zhong)使(shi)用(yong)滴(di)箭(jian)微(wei)灌(guan)設(she)備(bei)的(de)花(hua)卉(hui)品(pin)種(zhong),主(zhu)要(yao)是(shi)商(shang)品(pin)價(jia)值(zhi)較(jiao)高(gao)、生產周期較長的產品。通常有一品紅、紅掌、鳳梨、豬籠草、蝴蝶蘭、國蘭等,這些花卉生長周期在5至10月,甚至更長,在生長周期內每天必須有1至3 次澆灌。若采用節水灌溉,省工的同時可提高花卉品質和整齊度,增加經濟效益。
而對於生產周期較短、商品價值較低的盆栽花卉,如鳳仙花、雞冠花、菊花等,生產管理方麵相對粗放,若使用滴箭微灌設備,容易造成生產投入高、chanchudi,pinfandeanzhuangyuchaixiedijianbufen,jiangsunhaishebei,yingxiangshebeidezhengchangyunxingjisuoduanshiyongnianxian。yiner,shengchanzhouqijiaoduandepenzaihuahuijiaoshaoshiyongdijianweiguanshebei。bizhezengzaibeijingshunyidiqumouhuahuijidikandao,tamenzhongzhidedaduoshicaohuahexiugenhuahui,quanbucaiyongfenpenzhongzhi,dijiananzhuanggongzuoliangda,wufashupen,erweipenyoubukangfeng,dimaipentouliuliangguoda,bunengzouxiaohailangfeishuiyuan,yinerbuyicaiquweipen、滴箭或地埋噴頭。
灌溉產品服務存在不足
chulehuahuiyonghuzaiguangaijishushangyouyingyongwuquwai,guangaishebeishengchanheshigongqiyeyecunzaibuzu。shouxian,guoneiguangaichanpinzhiliangyoudaijinyibutigao,xuyaogengduochuangxinrencaihekeyanjigoudejiarujinxingchanpinyanfa,chuanglizizhupinpai,houqiyingjiaqiangchanpinzhiliangjianguanzhidu,zuodaochanpinchuchangqianjiunengdadaoxiangguanyaoqiu。qici,yingwanshankehufuwu,jiaohuikehuruhezhengqueshiyong、weihuchanpinjishebei。shigongqiyezuodaoshenshidushi,butonghuahuipinzhongdapeibutongguangaishebei,jiangshigongzhongyudaodewentijishifankuigeishengchanfang,shengchanfanganshijisuoxugengxinchanpinxingnenghecanshu,manzushichangxuqiu。
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