教你買到放心的(de)玉(yu)米(mi)種(zhong)子
一、選種前:找準商家再出手
要到(dao)具(ju)有《種(zhong)(zhong)(zhong)子生產許可證(zheng)》、《種(zhong)(zhong)(zhong)子合格證(zheng)》、《種(zhong)(zhong)(zhong)子經營(ying)(ying)許可證(zheng)》及工商行政部門頒(ban)發的(de)《營(ying)(ying)業執照》等(deng)證(zheng)件(jian)齊全的(de)商家購(gou)(gou)買玉(yu)米種(zhong)(zhong)(zhong)子。還(huan)要留心(xin)商家是否(fou)具(ju)有自己(ji)所購(gou)(gou)買品(pin)種(zhong)(zhong)(zhong)的(de)審(shen)定(ding)(ding)證(zheng)書或正式文件(jian),對于尚未審(shen)定(ding)(ding)的(de)玉(yu)米品(pin)種(zhong)(zhong)(zhong)不(bu)宜(yi)(yi)購(gou)(gou)買。此(ci)外,對于新品(pin)種(zhong)(zhong)(zhong)一(yi)定(ding)(ding)要詳細了解它的(de)審(shen)定(ding)(ding)級別和適宜(yi)(yi)播種(zhong)(zhong)(zhong)的(de)生態區域、土質、水(shui)肥要求、抗性等(deng),不(bu)要因片(pian)面追求高效益而(er)選擇與種(zhong)(zhong)(zhong)植地塊條(tiao)件(jian)不(bu)一(yi)致的(de)種(zhong)(zhong)(zhong)子。
二、選種時:留心種子“度”和“率”
在(zai)挑選種(zhong)子(zi)(zi)(zi)時,要特別留心玉米種(zhong)子(zi)(zi)(zi)的純度、發芽率和干濕度。純度可以這樣檢驗:在(zai)商家那里任意選取100粒(li)種(zhong)子(zi)(zi)(zi),其大(da)小、色澤、粒(li)形等差(cha)距較小,且很近(jin)似,說(shuo)明該種(zhong)子(zi)(zi)(zi)純度較高。如(ru)果所選的種(zhong)子(zi)(zi)(zi)以上的特征成二八開,說(shuo)明該種(zhong)子(zi)(zi)(zi)的混雜率在(zai)20%左右(you),這樣的種(zhong)子(zi)(zi)(zi)不(bu)要購買。
其次,要(yao)保證玉(yu)米種子(zi)(zi)能(neng)有(you)較高的(de)發(fa)芽率(lv),就要(yao)留心觀察種子(zi)(zi)不能(neng)顏色發(fa)暗(an)、蟲蛀、霉變,臍(qi)部不能(neng)有(you)橫的(de)條紋和(he)開裂等現象(xiang)。再有(you),凡是(shi)潮(chao)(chao)濕的(de)種子(zi)(zi),都有(you)可(ke)能(neng)發(fa)霉變質,在(zai)檢驗(yan)種子(zi)(zi)干(gan)濕度時可(ke)把手(shou)插入種子(zi)(zi)袋中,凡是(shi)手(shou)上無味(wei)且(qie)有(you)清(qing)爽感覺的(de)種子(zi)(zi)比較干(gan);反之,手(shou)上有(you)陰沉潮(chao)(chao)濕感且(qie)氣味(wei)不正,說明種子(zi)(zi)較濕。
三、選種后:保留單據最重要在選種后一定要保存好種子標簽、發貨票、信譽卡等維權證據。另(ling)外,在購種后(hou)的15天(tian)內一(yi)定要做種子發芽試驗,發芽率如果(guo)低(di)于85%的,應(ying)及時進行投訴維權。