旱稻栽培技术(一)
来源:http://sh-yeciel.com/news/205.html 发布时间:2012-03-07 点击:2367
ZAODAOSHIHEYUZHIBO,GUONEIYEYOUYIZAI。CICHUZHUYAOJIESHAOZHIBOZAIPEI。
1.JINGXIZHENGDI JINGXIZHENGDIYOULIYUQIMIAO、QUANMIAOYIJITURANGBAOSHUI,YAOQIUTUSUIPINGZHENG。TURANGGENGZUOYISHENGENG、SUITU、BAOSHANG、CHUCAOWEIZHUYAOMUDE,SHENDUYI18~20LIMIJIAOWEIHESHI,ZHENGDISHIQIHEFANGFA,ZEYINDIQU、QIHOU、TURANG、ZAIPEIJIJIEHEQIANZUOZHONGLEIDENGERBUTONG。SHUTUZACAODUO,BUYIZAOFANGENG、ZAOZHENGDI,YIMIANZACAOZISHENG。XINKAIKENDIKEGENGHOUJIZHENG,ZHENGHOUBOZHONG。
BEIFANGHANBOHANDAO,YOUCHUNBOHEXIABOLIANGZHONG。CHUNBODUOZAIQIUJIZUOWUSHOUHUOHOUZHENGDI,XIANXINGQIANGENGMIECHA,RANHOUJIEHESHIFEI,JINXINGSHENGENG。XIABOYIBANSHIZAIMALINGSHU、DAMAI、XIAOMAIDENGZUOWUSHOUHUOHOUBOZHONG,DANGSHIQIWENJIAOGAO、ZHENGFADA,ZHENGDIBAOSHANGYOUWEIZHONGYAO。ZAISHOUHUOHOU,SUIJISHIFEIJIEHELIPA,BIANBOZHONG、BIANZHENYA,CAINENGBAOZHUSHANGQING,YOULIYUCHUMIAO。
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2.BOZHONGBAOQUANMIAO ZAODAOBOZHONGNEIRONGBAOKUO:SHAIZHONG、JINZHONG、XIAODU、CUIYA、BOZHONG、FUTU(ZHENYA)DENG。GUOHAOHANDAOBOZHONGGUAN,YOULIYUCHUMIAO、ZUMIAO。
(1)SHAIZHONG、XUANZHONG、JINZHONG、ZHONGZIXIAODU TONGPUTONGSHUITIANYIZAIDAO。DANSHIHANDAOZHONGZIJINTOUJIKE(JIXISHUILIANGWEIQIZHONGZIZHONGDE60%YISHANG),YIBANJINZHONG2~3TIAN,ZAOJIJINZHONG3~4TIAN,ZHONG、WANJIJINZHONG2TIANZUOYOU,BINGZHUYIHUANSHUITOUQI。
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②BOZHONGLIANG BOZHONGLIANGDEDAXIAOYINGGENJUPINZHONGFENNIELIDEQIANGRUOHEFAYALVDEGAODI,TONGSHIHAIYAOZHUYIDAOTUDIDEFEISHOU、YOUWUGUANGAITIAOJIANDENGQUEDING。RUTURANGFEIWO、TURANGSHUIFENBAOCHIJIAOHAO,YOUZAIYUJIZHONG,YOULIYUHANDAOFENNIE,BOZHONGLIANGKEXIAOXIE。YIBANLAISHUO,CHUNBOMEIGONGQING45~90QIANKE,XIABOMEIGONGQING90~105QIANKE。
③播种方法 播种方法以条播较多,有利于中耕除草。北方播种后镇压,是保墒保苗的重要环节;南方因雨水较多,播后覆土即可。生长越整齐,产量越高。影响生长整齐度***重要的是垄内稻苗分布均匀程度,播种时要确保落粒均匀。覆土的厚度对出苗影响也很大,直接影响早稻的发芽率和出苗整齐度。如覆土过浅,遇到天旱,地表水分蒸发快,难以满足种子所需要的水分,不能发芽。如遇先雨后旱,已发芽也会引起胚芽过度生长,消耗种子养分,芽鞘出土能力减弱,甚至叶片在土内即展开,形成出苗缓慢,出苗率低,根系不发达。覆土厚度应根据土壤质地、季节和水分而定。一般壤土以3~4厘米为宜,沙土及土壤干旱时覆土可较深,粘土及土壤水分多时可较浅。南方春播覆土可浅些,3厘米左右即可,夏播宜稍深。
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