滴(Di)灌(Guan)
一(Yi)般(Ban)来(Lai)说(Shuo)滴(Di)灌(Guan)出(Chu)水(Shui)量(Liang)小(Xiao),(?)每(Mei)个(Ge)滴(Di)头(Tou)覆(Fu)盖(Gai)面(Mian)积(Ji)小(Xiao),(?)但(Dan)是(Shi)水(Shui)的(De)利(Li)用(Yong)率(Lu)可(Ke)以(Yi)达(Da)到(Dao)百(Bai)分(Fen)之(Zhi)90以(Yi)上(Shang);(?)适(Shi)用(Yong)于(Yu)地(Di)面(Mian)补(Bu)水(Shui),(?)它(Ta)是(Shi)小(Xiao)水(Shui)滴(Di)灌(Guan),(?)通(Tong)过(Guo)长(Chang)时(Shi)间(Jian)把(Ba)土(Tu)壤(Rang)浇(Jiao)透(Tou),(?)速(Su)度(Du)较(Jiao)慢(Man),(?)比(Bi)较(Jiao)适(Shi)合(He)作(Zuo)物(Wu)生(Sheng)长(Chang)期(Qi)的(De)补(Bu)水(Shui),(?)减(Jian)少(Shao)对(Dui)农(Nong)作(Zuo)物(Wu)的(De)伤(Shang)害(Hai),(?)正(Zheng)所(Suo)谓(Wei)“润(Run)物(Wu)细(Xi)无(Wu)声(Sheng)”。(?)滴(Di)灌(Guan)技(Ji)术(Shu)适(Shi)合(He)应(Ying)用(Yong)在(Zai)大(Da)棚(Peng)蔬(Shu)菜(Cai)、(?)水(Shui)果(Guo)的(De)种(Zhong)植(Zhi)上(Shang),(?)管(Guan)理(Li)方(Fang)便(Bian)。(?)
滴(Di)灌(Guan)是(Shi)利(Li)用(Yong)铺(Pu)设(She)在(Zai)田(Tian)间(Jian)的(De)输(Shu)水(Shui)管(Guan)道(Dao),(?)通(Tong)过(Guo)管(Guan)道(Dao)和(He)滴(Di)嘴(Zui)将(Jiang)水(Shui)缓(Huan)慢(Man)地(Di)引(Yin)向(Xiang)作(Zuo)物(Wu)根(Gen)部(Bu),(?)它(Ta)的(De)表(Biao)现(Xian)是(Shi)非(Fei)常(Chang)好(Hao)的(De),(?)比(Bi)较(Jiao)节(Jie)省(Sheng)水(Shui),(?)而(?)且(Qie)浇(Jiao)水(Shui)的(De)均(Jun)匀(Yun)性(Xing)高(Gao),(?)不(Bu)会(Hui)破(Po)坏(Huai)土(Tu)壤(Rang)结(Jie)构(Gou),(?)不(Bu)会(Hui)造(Zao)成(Cheng)植(Zhi)株(Zhu)倒(Dao)伏(Fu)。(?)
喷(Pen)灌(Guan)
喷(Pen)灌(Guan)是(Shi)利(Li)用(Yong)动(Dong)力(Li)把(Ba)水(Shui)喷(Pen)到(Dao)空(Kong)中(Zhong),(?)水(Shui)的(De)流(Liu)量(Liang)相(Xiang)对(Dui)较(Jiao)大(Da),(?)在(Zai)短(Duan)时(Shi)间(Jian)内(Nei)可(Ke)以(Yi)完(Wan)成(Cheng)土(Tu)地(Di)的(De)浇(Jiao)灌(Guan)工(Gong)作(Zuo)。(?)喷(Pen)灌(Guan)胜(Sheng)在(Zai)速(Su)度(Du)快(Kuai),(?)浇(Jiao)水(Shui)量(Liang)足(Zu),(?)比(Bi)较(Jiao)容(Rong)易(Yi)浇(Jiao)透(Tou)土(Tu)壤(Rang)。(?)但(Dan)是(Shi)地(Di)面(Mian)容(Rong)易(Yi)积(Ji)水(Shui),(?)流(Liu)出(Chu)的(De)水(Shui)也(Ye)比(Bi)较(Jiao)多(Duo),(?)水(Shui)的(De)利(Li)用(Yong)率(Lu)要(Yao)低(Di)一(Yi)些(Xie)。(?)主(Zhu)要(Yao)用(Yong)于(Yu)大(Da)面(Mian)积(Ji)的(De)大(Da)田(Tian)作(Zuo)物(Wu),(?)如(Ru)小(Xiao)麦(Mai)、(?)玉(Yu)米(Mi)、(?)大(Da)豆(Dou)等(Deng)和(He)大(Da)种(Zhong)类(Lei)蔬(Shu)菜(Cai)作(Zuo)物(Wu)。(?)对(Dui)于(Yu)大(Da)秧(Yang)苗(Miao)的(De)植(Zhi)株(Zhu),(?)这(Zhe)种(Zhong)浇(Jiao)灌(Guan)方(Fang)式(Shi)会(Hui)引(Yin)起(Qi)倒(Dao)伏(Fu),(?)会(Hui)对(Dui)土(Tu)壤(Rang)结(Jie)构(Gou)造(Zao)成(Cheng)一(Yi)定(Ding)的(De)冲(Chong)击(Ji)。(?) |