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迷宫式滴灌带的技术要点

迷宫式滴灌带的技术要点

发布日期:2019-03-18 作者: 点击:

 技术的要点:

节水、节肥、省工

金陵棋牌DIGUANSHUQUANGUANDAOSHUSHUIHEJUBUWEILIANGGUANGAI,SHISHUIFENDESHENLOUHESUNSHIJIANGDIDAOXIANDU。NENGZUODAOSHISHIDIGONGYINGZUOWUGENQUSUOXUSHUIFEN,BUCUNZAIWAIWEISHUIDESUNSHIWENTI,YOUSHISHUIDELIYONGXIAOLVDADATIGAO。

YUNYONGGUANGAISHIFEIJISHU,WEIZUOWUJISHIBUCHONGJIAGEANGGUIDEWEILIANGYUANSUTIGONGLEFANGBIAN,BINGKEBIMIANLANGFEI。DIGUANXITONGJINTONGGUOFAMENRENGONGHUOZIDONGKONGZHI,YOUJIEHELESHIFEI,GUYOUKEMINGXIANJIESHENGLAOLITOURU,JIANGDILESHENGCHANCHENGBEN,TIGAOLEZIYUANLIYONGLV,BAOZHENGLEQUANFUGAIGUANGAI。GUANGAIKEFANGBIANDIJIEHESHIFEI,JIBAHUAFEIRONGJIEHOUGUANZHURUGUANGAIXITONG,YOUYUHUAFEITONGGUANGAISHUIJIEHEZAIYIQI,FEILIAOYANGFENZHIJIEJUNYUNDISHIDAOZUOWUGENXICENG,ZHENZHENGSHIXIANLESHUIFEITONGBU,DADATIGAOLEFEILIAODEYOUXIAOLIYONGLV,TONGSHIYOUYINSHIXIAOFANWEIJUBUKONGZHI,WEILIANGGUANGAI,SHUIFEISHENLOUJIAOSHAO,GUKEJIESHENGHUAFEISHIYONGLIANG。

控制温度和湿度

传统沟灌的大棚,一次灌水量大,地表长时间保持湿润,不但棚温、地温降低太快,回升较慢,且蒸发量加大,室内湿度太高,易导致蔬菜或花卉病虫害发生。因滴灌属于局部微灌,大部分土壤表面保持干燥,且滴头均匀缓慢地向根系土壤层供水,对地温的保持、回升,减少水分蒸发,降低室内湿度等均具有明显的效果。采用膜下滴灌,即把滴灌管(带)布置在膜下,效果更佳。另外滴灌由于操作方便,可实行高频灌溉,且出流孔很小,流速缓慢,每次灌水时间比较长,土壤水分变化幅度小,故可控制根区内土壤能够长时间保持在接近于适合蔬菜、花卉等生长的湿度。由于控制了室内空气湿度和土壤湿度,可明显减少病虫害的发生,进而又可减少农药的用量。

保持土壤结构

金陵棋牌ZAICHUANTONGGOUQIGUANJIAODAGUANSHUILIANGZUOYONGXIA,SHISHESHITURANGSHOUDAOJIAODUODECHONGSHUA、YASHIHEQINSHI,RUOBUJISHIZHONGGENGSONGTU,HUIDAOZHIYANZHONGBANJIE,TONGQIXINGXIAJIANG,TURANGJIEGOUZAODAOYIDINGCHENGDUPOHUAI。ERDIGUANSHUWEILIANGGUANGAI,SHUIFENHUANMANJUNYUNDISHENRUTURANG,DUITURANGJIEGOUNENGQIDAOBAOCHIZUOYONG,BINGXINGCHENGSHIYIDETURANGSHUI、FEI、REHUANJING。

GAISHANPINZHI、ZENGCHANZENGXIAO

JIAOZHICHUANTONGGUANGAIFANGSHI,WENSHIHUODAPENGDENGSHESHIYUANYICAIYONGDIGUANHOU,KEDADATIGAOCHANPINCHANLIANG,TIZAOSHANGSHISHIJIAN,BINGJIANSHAOLESHUIFEI、NONGYAODESHIYONGLIANGHELAOLIDENGDECHENGBENTOURU,YINCIJINGJIXIAOYIHESHEHUIXIAOYIXIANZHU。SHESHIYUANYIDIGUANJISHUSHIYINGLEGAOCHAN、GAOXIAO、YOUZHIDEXIANDAINONGYEDEYAOQIU,ZHEIYESHIQINENGDEYICUNZAIHEDALITUIGUANGSHIYONGDEGENBENYUANYIN。

ZHUANZAISHENGMING:

GAIWENZHANGZHUANZAIYUWANGLUO,SHICHUYUCHUANDIGENGDUOXINXIZHIMUDE,BINGBUYIWEIZHEZANTONGQIGUANDIANHUOZHENGSHIQINEIRONGDEZHENSHIXING。RUZHUANZAIZUOPINQINFANZUOZHESHUMINGQUAN,HUOYOUQITAZHURUBANQUAN、XIAOXIANGQUAN、ZHISHICHANQUANDENGFANGMIANDESHANGHAI,BINGFEIBENWANGGUYIWEIZHI,ZAIJIEDAOXIANGGUANQUANLIRENTONGZHIHOUJIANGLIJIJIAYIGENGZHENG。


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