辽宁福彩35选7走势图

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养虾稻田的选择

养虾稻田的选择

发布日期:2018-12-25 作者: 点击:

龙虾苗


YANGXIADAOTIANDEXUANZE:

辽宁福彩35选7走势图  XUANZEDETIAOJIANCHUBAOZHENGCHANGGUIXINGDEYAOQIU(SHUIZHI、SHUILIANG、PAIGUAN、JIAOTONG、DIANLIDENG)WAI,BIXUYAOZHUYIYIXIAJIGEWENTI:

  ①、稻田养虾面积在百亩以下,其所处位置要在大面积水稻种植区。因为养殖龙虾苗辽宁福彩35选7走势图稻田要保持一定的水位,养殖过程还须经常换水,而不养龙虾的稻田要有几次烤田或干干湿湿的生长过程。

辽宁福彩35选7走势图  ②、XUANZEZHONGZHIYIJIZHONGDAOHUOXIAOMAICHANLIANGBUGAODEDIHUTIAN,CAIQULIANZUO、LUNZUOLIANPIANDEYANGZHIFANGSHI,YOULIYUTONGYIGUANLI,JIANGDIFEIYONG,TIGAOJINGJIXIAOYI。

  ③、选择在小麦、水稻病虫害高发地区进行稻田养小龙虾苗种辽宁福彩35选7走势图。稻飞虱虫害、条纹叶枯病病害是苏北地区至全省的水稻最主要病虫害。由于没有息茬,不仅地力下降而且病虫害不断加剧,据测,江淮部分稻套麦田亩虫量超过500万头,条纹叶枯病、黑条矮缩病等水稻病毒病主要由飞虱传毒引起的。稻田养虾虽然少收一季小麦,但对于降低病虫害、增加地力和粮食安全都有好处。

  ④、选择排灌方便的田块,这是养殖龙虾幼苗的首要条件,尤其是在4—5月份要灌得进排得出。这是由于小龙虾幼苗辽宁福彩35选7走势图经过越冬体质弱易得病,水体经一个冬天没有交换而老化,所以初春保持水体经常交换尤其重要。


 (1)TOUER:DAOTIANYANGXIAYEYAODINGSHI、DINGWEI、DINGLIANG、DINGZHITOUER。ZAOQIMEITIANFENSHANG、XIAWUGETOUWEIYICI;HOUQIZAIBANGWAN6DIANDUOTOUWEI。TOUWEIERLIAOPINZHONGDUOWEIXIAOZAYU、LUOSIROU、HEBANGROU、QIUYIN、DONGWUNEIZANG、CANYONG、PEIWEIYUMI、XIAOMAI、DAMAIFEN。HAIKETOUWEISHILIANGZHIWUXINGSILIAO,RUSHUIHULU、SHUIWUPING、SHUIFUPINGDENG。RITOUWEISILIAOLIANGWEIXIATIZHONGDE3~5%。PINGSHIYAOJIANCHIQINJIANCHAXIAOLONGXIAMIAOZHONGDECHISHIQINGKUANG,DANGTIANTOUWEIDEERLIAOZAI2~3XIAOSHINEIBEICHIWAN,SHUOMINGTOUERLIANGBUZU,YINGSHIDANGZENGJIATOUERLIANG,RUZAIDIERTIANHAIYOUSHENGYU,ZETOUERLIANGYAOSHIDANGJIANSHAO。 

 (2)清除敌害:稻田养虾敌害较多,如水蜈蚣、蛇、水鸟、鳝鱼、水老鼠等。在放虾初期,稻株茎叶不茂,田间水面空隙较大,此时龙虾幼苗个体也较小,活动能力较弱,逃避敌害的能力较差,容易被敌害侵袭。同时,淡水龙虾每隔一段时间需要蜕壳生长,在蜕壳或刚蜕壳时,最容易成为敌害的适口饵料。到了收获时期,由于田水排浅,虾有可能到处爬行,目标会更大,也易被鸟、兽捕食。对此,要加强田间管理,并及时驱捕敌害。另外,当淡水龙虾苗放养后,还要禁止家养鸭子下田沟,避免损失。 

辽宁福彩35选7走势图 (3)TIANGOUGUANLI:LONGXIAYOUMIAOFANGYANGHOU,GUANHAOTIANGOUSHISHIFENZHONGYAODEYIHUAN。XIAMIAOFANGYANGCHUQI,TIANSHUIYIQIAN,DANYINXIAMIAODEBUDUANZHANGDAHESHUIDAODECHOUSUI、YANGHUA、GUANJIANGJUNXUDALIANGSHUI,SUOYIKEJIANGTIANSHUIZHUJIANJIASHENDAO12~15LIMI,YIQUEBAOLIANGZHE(XIAHEDAO)XUSHUILIANG。TONGSHI,HAIZAIZHUYIGUANCHATIANGOUSHUIZHIBIANHUA,YIBANMEI3~5TIANJIAZHUXINSHUIYICI;SHENGXIAJIJIE,MEI1~2TIANJIAZHUYICIXINSHUI,YIBAOCHITIANSHUIQINGXIN。LINGWAI,YAOJIANCHIMEITIAN3CIXUNTIAN,GUANCHAXIAMIAOZAITIANZHONGHUODONGHESHESHIQINGKUANG,RUFAXIANYOUBUZHENGCHANGXIANXIANG,YINGJISHICAIQUCUOSHI。PINGSHIHAIYAOZUOHAOFANGHONG、PAILAOHEFANGTAOGONGZUO,SUISHIZHUYITIANQIBIANHUAQINGKUANG,YIDANYUYOUDABAOYU,YAOJISHIJIANCHAJINPAISHUIKOUJILANXIASHEBEISHIFOUWANHAO,QUEBAOANQUAN,YIFANGTAOXIA。 


辽宁福彩35选7走势图DANGQIANZHENGSHIZHONGXIATOUFANGDEHUANGJINSHIJIAN,NONGMINPENGYOUMENZAITOUFANGDANSHUILONGXIAMIAOSHIYAOZHUYIYIXIAJIDIAN:

辽宁福彩35选7走势图  YI、GAOHAODAOTIANJIBENGAIZAO  ZHUYAOSHIKAIHAOWEIGOU,JIAGUDIGENG,JIANHAOJINPAISHUIXITONG,SHEZHIFANGTAOSHESHI。

辽宁福彩35选7走势图  ER、GAOHAOWEIGOUXIAODU  ZUIHAOYONGSHENGSHIHUIBIANSA,MEIMUYONGLIANG100JIN,YIXINGQIHOUTOUFANGZHONGXIA。

  SAN、XUANHAOZHONGXIAHELITOUFANG  ZHONGXIAYAOXUANZEXINGCHENGSHU、JIANKANG、FUZHIQIQUANDEGETI,ANCIXIONGBI3:1TOUFANG。MEIMUTOUFANGZHONGXIA15-20GONGJIN,YIQIANYANGGUODEDAOTIANKEJIANBANTOUFANG。

  SI、XUANZEQINGHAOTIANQIANQUANFANGYANG  TOUFANGSHIXUANZE18—28DUQIWENQINGTIANBANGWANTOUFANG,TOUFANGSHIYAOZHUYIWENCHA,RUGUOWENCHAGUODA,YINGJIANGYUNLAIDELONGXIAZAIDAOGOUZHONGJINPAO1FENZHONGTIQI,ZHONGFU2—3CI。TOUFANGSHIYAOXUANZEDUODIANTOUFANG。

  五、虾苗采购辽宁福彩35选7走势图搞好运输减少死亡  长距离运输最好选择泡沫箱或塑料筐,每筐不要装多,最好在20—25斤,如果气温高,可用吊冰的办法运输。


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关键词:龙虾苗,龙虾种苗,淡水龙虾苗

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