滴(Di)灌(Guan)技(Ji)术(Shu)好(Hao)处(Chu)多(Duo)
灌(Guan)溉(Gai)用(Yong)水(Shui)最(Zui)省(Sheng),(?)滴(Di)灌(Guan)仅(Jin)湿(Shi)润(Run)作(Zuo)物(Wu)根(Gen)系(Xi)发(Fa)育(Yu)区(Qu),(?)属(Shu)局(Ju)部(Bu)灌(Guan)溉(Gai)形(Xing)式(Shi),(?)由(You)于(Yu)滴(Di)水(Shui)强(Qiang)度(Du)小(Xiao)于(Yu)土(Tu)壤(Rang)的(De)入(Ru)渗(Shen)速(Su)度(Du),(?)因(Yin)而(?)不(Bu)会(Hui)形(Xing)成(Cheng)径(Jing)流(Liu)使(Shi)土(Tu)壤(Rang)板(Ban)结(Jie)。(?)膜(Mo)下(Xia)滴(Di)灌(Guan)滴(Di)水(Shui)量(Liang)很(Hen)少(Shao),(?)且(Qie)能(Neng)够(Gou)使(Shi)土(Tu)壤(Rang)中(Zhong)有(You)限(Xian)的(De)水(Shui)分(Fen)循(Xun)环(Huan)于(Yu)土(Tu)壤(Rang)与(Yu)地(Di)膜(Mo)之(Zhi)间(Jian),(?)减(Jian)少(Shao)作(Zuo)物(Wu)的(De)棵(Ke)间(Jian)蒸(Zheng)发(Fa)。(?)覆(Fu)盖(Gai)地(Di)膜(Mo)还(Huan)能(Neng)将(Jiang)较(Jiao)小(Xiao)的(De)无(Wu)效(Xiao)降(Jiang)雨(Yu)变(Bian)成(Cheng)有(You)效(Xiao)降(Jiang)雨(Yu),(?)提(Ti)高(Gao)自(Zi)然(Ran)降(Jiang)雨(Yu)的(De)利(Li)用(Yong)率(Lu)。(?)据(Ju)测(Ce)试(Shi),(?)膜(Mo)下(Xia)滴(Di)灌(Guan)的(De)平(Ping)均(Jun)用(Yong)水(Shui)量(Liang)是(Shi)传(Chuan)统(Tong)灌(Guan)溉(Gai)方(Fang)式(Shi)的(De)12%(?),(?)是(Shi)喷(Pen)灌(Guan)的(De)50%(?),(?)是(Shi)一(Yi)般(Ban)滴(Di)灌(Guan)的(De)70%(?)。(?)
肥(Fei)料(Liao)利(Li)用(Yong)率(Lu)提(Ti)高(Gao)。(?)易(Yi)溶(Rong)肥(Fei)料(Liao)施(Shi)肥(Fei),(?)可(Ke)利(Li)用(Yong)滴(Di)灌(Guan)随(Sui)水(Shui)滴(Di)到(Dao)作(Zuo)物(Wu)根(Gen)系(Xi)土(Tu)壤(Rang)中(Zhong),(?)使(Shi)肥(Fei)料(Liao)利(Li)用(Yong)率(Lu)大(Da)大(Da)提(Ti)高(Gao)。(?)据(Ju)测(Ce)试(Shi),(?)膜(Mo)下(Xia)滴(Di)灌(Guan)可(Ke)使(Shi)肥(Fei)料(Liao)的(De)利(Li)用(Yong)率(Lu)由(You)30%(?)~(?)40%(?),(?)提(Ti)高(Gao)到(Dao)50%(?)—60%(?)。(?)
增(Zeng)产(Chan)效(Xiao)果(Guo)明(Ming)显(Xian)。(?)膜(Mo)下(Xia)滴(Di)灌(Guan)能(Neng)适(Shi)时(Shi)适(Shi)量(Liang)地(Di)向(Xiang)作(Zuo)物(Wu)根(Gen)区(Qu)供(Gong)水(Shui)供(Gong)肥(Fei),(?)调(Diao)节(Jie)棵(Ke)间(Jian)的(De)温(Wen)度(Du)和(He)湿(Shi)度(Du);(?)同(Tong)时(Shi)地(Di)膜(Mo)覆(Fu)盖(Gai)昼(Zhou)夜(Ye)温(Wen)差(Cha)变(Bian)化(Hua)时(Shi),(?)膜(Mo)内(Nei)结(Jie)露(Lu),(?)能(Neng)改(Gai)善(Shan)作(Zuo)物(Wu)生(Sheng)长(Chang)的(De)微(Wei)气(Qi)候(Hou)环(Huan)境(Jing),(?)从(Cong)而(?)为(Wei)作(Zuo)物(Wu)生(Sheng)长(Chang)提(Ti)供(Gong)良(Liang)好(Hao)的(De)条(Tiao)件(Jian),(?)因(Yin)而(?)增(Zeng)产(Chan)效(Xiao)果(Guo)明(Ming)显(Xian)。(?)据(Ju)调(Diao)查(Cha),(?)膜(Mo)下(Xia)滴(Di)灌(Guan)可(Ke)使(Shi)一(Yi)般(Ban)的(De)低(Di)产(Chan)棉(Mian)花(Hua)产(Chan)量(Liang)提(Ti)高(Gao)30%(?),(?)蔬(Shu)菜(Cai)增(Zeng)收(Shou)40%(?),(?)西(Xi)瓜(Gua)、(?)甜(Tian)瓜(Gua)增(Zeng)收(Shou)25%(?)。(?)
投(Tou)工(Gong)费(Fei)用(Yong)很(Hen)低(Di)。(?)膜(Mo)下(Xia)滴(Di)灌(Guan),(?)由(You)于(Yu)植(Zhi)物(Wu)行(Xing)间(Jian)无(Wu)灌(Guan)溉(Gai)水(Shui)分(Fen),(?)因(Yin)而(?)杂(Za)草(Cao)比(Bi)全(Quan)面(Mian)积(Ji)灌(Guan)溉(Gai)的(De)土(Tu)壤(Rang)少(Shao),(?)可(Ke)减(Jian)少(Shao)除(Chu)草(Cao)投(Tou)工(Gong)。(?)滴(Di)水(Shui)灌(Guan)溉(Gai),(?)土(Tu)壤(Rang)不(Bu)板(Ban)结(Jie),(?)可(Ke)减(Jian)少(Shao)锄(Chu)地(Di)次(Ci)数(Shu)。(?)滴(Di)灌(Guan)系(Xi)统(Tong)又(You)不(Bu)需(Xu)平(Ping)整(Zheng)土(Tu)地(Di)和(He)开(Kai)沟(Gou)打(Da)畦(Qi),(?)可(Ke)实(Shi)行(Xing)自(Zi)动(Dong)控(Kong)制(Zhi),(?)大(Da)大(Da)降(Jiang)低(Di)田(Tian)间(Jian)灌(Guan)水(Shui)的(De)劳(Lao)动(Dong)量(Liang)和(He)劳(Lao)动(Dong)强(Qiang)度(Du)。(?)据(Ju)调(Diao)查(Cha),(?)滴(Di)灌(Guan)比(Bi)大(Da)水(Shui)漫(Man)灌(Guan)每(Mei)667平(Ping)方(Fang)米(Mi)((?)1亩(Mu))(?)省(Sheng)工(Gong)10个(Ge)左(Zuo)右(You)。(?)
工(Gong)程(Cheng)造(Zao)价(Jia)便(Bian)宜(Yi)。(?)多(Duo)少(Shao)年(Nian)来(Lai),(?)滴(Di)灌(Guan)技(Ji)术(Shu)一(Yi)直(Zhi)被(Bei)人(Ren)们(Men)称(Cheng)为(Wei)昂(Ang)贵(Gui)技(Ji)术(Shu)而(?)仅(Jin)应(Ying)用(Yong)在(Zai)高(Gao)附(Fu)加(Jia)值(Zhi)的(De)作(Zuo)物(Wu)中(Zhong)。(?)随(Sui)着(Zhuo)水(Shui)资(Zi)源(Yuan)的(De)日(Ri)趋(Qu)短(Duan)缺(Que)和(He)国(Guo)产(Chan)滴(Di)灌(Guan)设(She)施(Shi)进(Jin)行(Xing)的(De)适(Shi)合(He)国(Guo)情(Qing)、(?)降(Jiang)低(Di)投(Tou)资(Zi)的(De)研(Yan)究(Jiu)取(Qu)得(De)很(Hen)大(Da)的(De)进(Jin)展(Zhan),(?)滴(Di)灌(Guan)技(Ji)术(Shu)已(Yi)完(Wan)全(Quan)能(Neng)够(Gou)进(Jin)入(Ru)大(Da)田(Tian)和(He)适(Shi)应(Ying)普(Pu)通(Tong)农(Nong)业(Ye)使(Shi)用(Yong)。(?)特(Te)别(Bie)是(Shi)新(Xin)疆(Jiang)天(Tian)业(Ye)膜(Mo)下(Xia)滴(Di)灌(Guan)设(She)施(Shi),(?)每(Mei)667平(Ping)方(Fang)米(Mi)造(Zao)价(Jia)仅(Jin)300元(Yuan)左(Zuo)右(You),(?)是(Shi)国(Guo)外(Wai)同(Tong)类(Lei)产(Chan)品(Pin)造(Zao)价(Jia)的(De)1/(?)8,(?)设(She)备(Bei)使(Shi)用(Yong)期(Qi)可(Ke)达(Da)5—8年(Nian),(?)最(Zui)末(Mo)级(Ji)滴(Di)灌(Guan)带(Dai)每(Mei)米(Mi)价(Jia)格(Ge)仅(Jin)为(Wei)0.(?)2元(Yuan),(?)每(Mei)667平(Ping)方(Fang)米(Mi)土(Tu)地(Di)滴(Di)灌(Guan)带(Dai)投(Tou)资(Zi)仅(Jin)需(Xu)120元(Yuan),(?)使(Shi)用(Yong)二(?)年(Nian)左(Zuo)右(You)后(Hou)滴(Di)灌(Guan)带(Dai)还(Huan)可(Ke)以(Yi)旧(Jiu)换(Huan)新(Xin),(?)每(Mei)米(Mi)只(Zhi)收(Shou)0.(?)12元(Yuan)加(Jia)工(Gong)费(Fei),(?)每(Mei)667平(Ping)方(Fang)米(Mi)滴(Di)灌(Guan)带(Dai)投(Tou)资(Zi)可(Ke)降(Jiang)到(Dao)70多(Duo)元(Yuan)。(?) |