棉花是我國的重要作物之一，在我國具有較大麵積的種植
，我們身上穿的、jialigaidebeizi
，doulibukaimianhua。mianhuazaizhongzhizhiqian，qizhongzidezhiliangfeichangzhongyao
，qizhongzizhilianghuiyingxiangzhongzidefayalv。zaibozhongmianhuazhongzideguochengzhong
，womenyinggaijiezhu真空吸種置床儀debangzhu，gaiyiqishebeishizhongzijianceyiqi，tongguozhenkongxizhongheshuzhongtou，jiangguidingshuliangdezhongzi
，junyundefangzhizaipeiyangjishangjinxingzhongzipeiyang
，zengjiashuzhongpeiyangdezhunquexing
，tigaogongzuoxiaolv。

很多結合使用真空吸種置床儀的萌芽試驗經過近幾年的實踐和摸索，認為應做好水分
、光照
、培pei養yang基ji等deng各ge方fang麵mian的de關guan鍵jian控kong製zhi。比bi如ru棉mian種zhong對dui土tu壤rang水shui分fen比bi較jiao敏min感gan，用yong較jiao低di的de水shui分fen砂sha床chuang，既ji要yao滿man足zu種zhong子zi發fa芽ya的de水shui分fen需xu求qiu
，又you保bao證zheng氧yang氣qi的de供gong應ying
，所suo以yi真zhen空kong數shu種zhong置zhi床chuang儀yi處chu理li的de種zhong子zi要yao注zhu意yi水shui分fen分fen析xi。

真(zhen)空(kong)吸(xi)種(zhong)置(zhi)床(chuang)儀(yi)試(shi)驗(yan)中(zhong)的(de)芽(ya)床(chuang)製(zhi)作(zuo)是(shi)關(guan)鍵(jian)之(zhi)一(yi)，根(gen)據(ju)種(zhong)子(zi)的(de)發(fa)芽(ya)率(lv)以(yi)幼(you)苗(miao)鑒(jian)定(ding)為(wei)基(ji)準(zhun)，然(ran)後(hou)用(yong)砂(sha)子(zi)作(zuo)發(fa)芽(ya)床(chuang)，先(xian)將(jiang)消(xiao)過(guo)毒(du)的(de)砂(sha)子(zi)倒(dao)入(ru)磁(ci)盤(pan)中(zhong)用(yong)水(shui)拌(ban)濕(shi)，然(ran)後(hou)再(zai)用(yong)二(er)重(zhong)皿(min)的(de)地(di)盤(pan)砂(sha)子(zi)，使(shi)砂(sha)子(zi)在(zai)二(er)重(zhong)皿(min)內(nei)處(chu)於(yu)疏(shu)鬆(song)
、平(ping)坦(tan)且(qie)均(jun)勻(yun)狀(zhuang)態(tai)。在(zai)使(shi)用(yong)真(zhen)空(kong)吸(xi)種(zhong)置(zhi)床(chuang)儀(yi)將(jiang)種(zhong)子(zi)置(zhi)床(chuang)時(shi)，為(wei)了(le)使(shi)種(zhong)子(zi)處(chu)於(yu)一(yi)致(zhi)的(de)狀(zhuang)態(tai)，應(ying)先(xian)將(jiang)幹(gan)棉(mian)籽(zi)大(da)頭(tou)朝(chao)上(shang)，而(er)尖(jian)頭(tou)朝(chao)下(xia)

，直(zhi)接(jie)插(cha)入(ru)砂(sha)子(zi)，然(ran)後(hou)再(zai)將(jiang)棉(mian)籽(zi)按(an)下(xia)與(yu)砂(sha)麵(mian)平(ping)。最(zui)後(hou)再(zai)均(jun)勻(yun)蓋(gai)砂(sha)子(zi)。蓋(gai)上(shang)蓋(gai)子(zi)放(fang)入(ru)已(yi)消(xiao)過(guo)毒(du)
、調製適宜的溫度的發芽室內。