手機版
玉米膜下滴灌技術的優勢主要有：1.保bao水shui作zuo用yong。膜mo下xia滴di灌guan，灌guan水shui適shi度du後hou，保bao持chi了le土tu壤rang毛mao細xi管guan的de上shang下xia通tong暢chang，管guan中zhong的de水shui可ke以yi源yuan源yuan不bu斷duan地di上shang升sheng到dao地di表biao，覆fu膜mo後hou土tu壤rang與yu大da氣qi隔ge開kai，減jian少shao土tu壤rang水shui分fen的de散san失shi，使shi土tu壤rang表biao層ceng保bao持chi濕shi潤run，自zi然ran降jiang水shui少shao量liang從cong苗miao孔kong滲shen入ru土tu壤rang，大da量liang水shui分fen流liu入ru壟long溝gou，滲shen到dao覆fu膜mo區qu，由you地di膜mo保bao護hu起qi來lai，被bei作zuo物wu有you效xiao利li用yong。
2.增zeng溫wen作zuo用yong。陽yang光guang中zhong的de輻fu射she透tou過guo地di膜mo，使shi地di溫wen升sheng高gao，由you於yu土tu壤rang自zi身shen的de傳chuan導dao作zuo用yong，使shi深shen層ceng溫wen度du逐zhu漸jian升sheng高gao，保bao存cun在zai土tu壤rang中zhong，灌guan溉gai水shui通tong過guo管guan道dao及ji毛mao管guan滴di頭tou係xi統tong，緩huan慢man滴di入ru膜mo下xia土tu壤rang中zhong，起qi到dao水shui流liu增zeng溫wen的de作zuo用yong。汽qi化hua熱re損sun失shi少shao，溫wen度du下xia降jiang緩huan慢man。全quan生sheng育yu期qi可ke提ti高gao積ji溫wen150℃—200℃，這樣可以選擇生育期較長的品種來提高玉米的產量。
3.gaishanturangwulixingzhuang。diguandeshenshuiyalijixiao，baozhengleturangdeshusongzhuangtai，turangtouqixinglianghao，kongxiduzengjia，rongzhongjiangdi，youliyuzuowugenxideshengchangfayu，shizuowuzhifanyemao，chanliangzenggao。
4．zengjiaturangzhongyangfenhanliang。fugaidimohou，zengwenbaoshang，youliyuturangweishengwuhuodong，jiasuyoujiwuhesuxiaoyangfendefenjie，zengjialeturangyangfendehanliang。gaimohouzuzhiyushuiduiturangdechongshuahejinrun，baohuyangfenbushousunshi。danyouyuzhizhushengchangwangsheng，xiaohaoyangfenda，turangyangfenjianshao，rongyixingchengzaoshuaihedaofu，yingxiangchanliang，guyidingyaoshizujifei，huozhayanzhuifeilaimanzuzuowudeshengchangxuyao。
5.改gai善shan光guang照zhao條tiao件jian。覆fu膜mo後hou，由you於yu地di膜mo和he膜mo下xia水shui珠zhu的de反fan射she作zuo用yong，使shi漏lou射she的de陽yang光guang反fan射she到dao近jin地di的de空kong間jian，增zeng加jia基ji部bu葉ye片pian的de光guang合he作zuo用yong，提ti高gao光guang合he強qiang度du和he光guang能neng利li用yong率lv。光guang合he作zuo用yong增zeng強qiang，製zhi造zao的de幹gan物wu質zhi增zeng多duo，增zeng加jia玉yu米mi的de千qian粒li重zhong，提ti高gao玉yu米mi產chan量liang。
