现代设施农业无土栽培技术的优点是什么？

　　WUTUZAIPEISHIZHIBUYONGTIANRANTURANGERYONGJIZHIHUOJINYUMIAOSHIYONGJIZHI，ZAIDINGZHIYIHOUYONGYINGYANGYEJINXINGGUANGAIDEZAIPEIFANGFA，KEJIEYUETUDI。YOUYUWUTUZAIPEIKERENGONGCHUANGZAOLIANGHAODEGENJIHUANJINGYIQUDAITURANGHUANJING，YOUXIAOFANGZHITURANGLIANZUOBINGHAIJITURANGYANFENJILEIZAOCHENGDESHENGLIZHANGAI，CHONGFENMANZUZUOWUDUIKUANGZHIYINGYANG，SHUIFEN、QITIDENGHUANJINGTIAOJIANDEYAOQIU，RENGONGPEIZHIDEPEIYANGYE，GONGJIZHIWUKUANGWUYINGYANGDEXUYAO，CHENGFENYIYUKONGZHI。ERQIEKEYISUISHIDIAOJIE，ZAIGUANGZHAO、WENDUSHIYIERMEIYOUTURANGDEDIFANG，ZHIYAOYOUYIDINGLIANGDEDANSHUIGONGYING，BIANKEJINXING。DADOUSHIDEJINJIAOHEJIATINGYEKEYONGWUTUZAIPEIFAZHONGSHUCAIHUAHUI。

　　YI、WUTUZAIPEIJISHUYOUDIAN

　　1、KESHIZUOWUZHANGSHIHAO，CHANLIANGGAO

　　WUTUZAIPEINENGCHONGFENFAHUIZUOWUDESHENGCHANQIANLI，YUTURANGZAIPEIXIANGBI，CHANLIANGKEYICHENGBEIHUOJISHIBEIDITIGAO。WUTUZAIPEIZHONG，ZHIWUSHENGZHANGSUOXUYAODEGEZHONGYINGYANGYUANSU，SHITONGGUORENWEIPEIZHICHENGYINGYANGYESHIYONGDE，BUJINBUHUISUNSHI，ERQIEBAOCHIPINGHENG。TAKEYIGENJUHUAMUDEBUTONGZHONGLEIJIBUTONGSHENGZHANGFAYUJIEDUAN，KEXUEDIGONGYINGYANGFEN，JINXINGPEIFANGSHIFEI。YOUMIAOSHENGZHANGXUNSU，MIAOLINGDUAN，GENXIFAYUHAO，YOUMIAOJIANZHUANG、ZHENGQI，DINGZHIHOUHUANMIAOSHIJIANDUAN，YICHENGHUO。BULUNSHIJIZHIYUMIAOHAISHIYINGYANGYEYUMIAO，DOUKEBAOZHENGSHUIFENHEYANGFENGONGYINGCHONGZU，JIZHITONGQILIANGHAO。TONGSHI，WUTUYUMIAOBIANYUKEXUE、GUIFANGUANLI。

　　2、BIMIANTURANGLIANZUOZHANGAI

　　SHESHIZAIPEIZHONG，TURANGJISHAOSHOUZIRANYUSHUIDELINRONG，SHUIFENYANGFENYUNDONGFANGXIANGSHIZIXIAERSHANG。TURANGSHUIFENZHENGFAHEZUOWUZHENGTENG，SHITURANGZHONGDEKUANGZHIYUANSUYOUTURANGXIACENGYIXIANGBIAOCENG，ZHANGNIANLEIYUE、NIANFUYINIAN，TURANGBIAOCENGJIJULEHENDUOYANFEN，DUIZUOWUYOUWEIHAIZUOYONG。YINGYONGWUTUZAIPEIHOU，TEBIESHICAIYONGSHUIPEI，ZECONGGENBENSHANGJIEJUELECIWENTI。TUCHUANBINGHAIYESHISHESHIZAIPEIDENANDIAN，TURANGXIAODU，BUJINKUNNANERQIEXIAOHAODALIANGNENGYUAN，CHENGBENKEGUAN，QIENANYIXIAODUCHEDI。RUOYONGYAOJIXIAODUJIQUEFAGAOXIAOYAOPIN，TONGSHIYAOJIYOUHAICHENGFENDECANLIUHAIWEIHAIJIANKANG，WURANHUANJING。WUTUZAIPEIZESHIBIMIANHUOCONGGENBENSHANGDUJUETUCHUANBINGHAIDEYOUXIAOFANGFA。

　　3、QUEBAOWEISHENGQINGJIE，JIANSHAOBINGCHONGHAI

　　WUTUZAIPEIJISHUSHIYIZHONGWUGONGHAIZAIPEIJISHU，NENGGOUJIANSHAOZHIWUCHUXIANBINGCHONGHAIXIANXIANG，QUEBAOZHIWUDEJIANKANGSHENGZHANG，ZHIWUDEJIANKANGHEWEISHENG。

　　4、FUHEFAZHANYAOQIU

　　FUHEXIANDAIHUANONGYEDEFAZHANYAOQIU，ZAIJINXINGWUTUZAIPEIDEGUOCHENGZHONG，DUIJIANSHAOZAIPEIGONGXU，JIESHENGLAODONGLI，JIAQIANGDUIZAIPEIJISHUDEGUANLIJUYOUZHONGYAOZUOYONG，NENGGOUTONGGUOXIANDAIHUADEJISHUCAOZUOLAIDIAOJIEYINGYANGYEDENONGDU，QUEBAOZHIWUSHENGZHANGYINGYANGDEGONGJI。

　　5、SHENGGONG、JIESHUI、SHENGFEI

　　YOUYUBUXUYAOJINXINGTURANGGENGZUO、ZHENGDI、SHIFEI、ZHONGGENGCHUCAODENG，TIANJIANGUANLIGONGZUODADAJIANSHAO，BUJINNENGJIESHENGYONGGONG，TONGSHILAODONGQIANGDUYIBUDA，NENGDADAGAISHANNONGYESHENGCHANDELAODONGTIAOJIAN，YOULIYUSHENGLIHUAZAIPEI。ZAIRENGONGKONGZHIXIA，TONGGUOYINGYANGYEDEKEXUEGUANLILAIQUEBAOSHUIFENHEYANGFENDEGONGYING，YINERKEYIDADAJIANSHAOLETURANGZAIPEIZHONGSHUIFEIDESHENLOU、LIUSHI、HUIFAYUZHENGFA，SUOYIZAISHAMOGANHANDIQUJINXINGWUTUZAIPEIYISHIYIXIANGHENHAODE“JIESHUIGONGCHENG”

　　6、BUSHOUDIQUXIANZHI，KECHONGFENLIYONGKONGJIAN

　　无土栽培使作物彻底脱离了土壤环境，因而也就摆脱了土地的约束。耕地被认为是有限的、最宝贵的、又是不可再生的自然资源，尤其对一些耕地缺乏的地区和国家，无土栽培就更有特殊意义。无土栽培进入生领域后，地球上许多沙漠、荒原或难以耕种的地区，都可采用无土栽培方法加以利用。此外，无土栽培还不受空间限制，可以利用城市楼房的平面屋顶种菜种花，无形中扩大了栽培面积

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