fangmeiwu。qunianqiuhuashengshouhuoheliangshaiqi,bufendifangzaoyuxiaoyu,zaochenghuashengliangshaiheshouhuobujishi,huashengjiaguoyoubutongchengdudemeiwu。huashengzhongzimeiwuhou,fayashijiangdi,chumiaohouyesefahuang、抗病力降低,花生根莖腐病發病幾率增加。
精選種。在播種前首先對花生莢果進行精選,剔除雜果、爛果、蟲果。其次剝米後按照籽粒的大小進行分等級,將籽粒大的播種在一起,籽粒居中的播在一起,淘汰籽粒小、癟、出芽、黴變的種子。
播bo前qian曬shai種zhong。播bo前qian曬shai果guo能neng夠gou殺sha滅mie莢jia果guo表biao皮pi上shang的de病bing菌jun,增zeng強qiang種zhong皮pi的de透tou水shui性xing,加jia速su種zhong子zi的de吸xi水shui過guo程cheng,促cu進jin酶mei的de活huo性xing,有you利li種zhong子zi內nei養yang分fen的de轉zhuan化hua,提ti高gao種zhong子zi的de發fa芽ya率lv,出chu苗miao整zheng齊qi。種zhong子zi成cheng熟shu度du較jiao差cha和he貯zhu藏zang期qi間jian受shou潮chao,曬shai種zhong的de效xiao果guo更geng顯xian著zhu。經jing曬shai種zhong處chu理li後hou,花hua生sheng提ti早zao出chu苗miao1—2天,可增產10%—15%。選擇晴朗的上午,把花生果攤放在曬場上,厚度1—2寸,連續曬2—3天,要經常翻動,要曬得均勻一致。
晚(wan)剝(bo)皮(pi)。從(cong)調(tiao)查(zha)情(qing)況(kuang)看(kan),目(mu)前(qian)有(you)好(hao)多(duo)農(nong)戶(hu)已(yi)經(jing)提(ti)前(qian)剝(bo)好(hao)了(le)花(hua)生(sheng)種(zhong)子(zi),這(zhe)樣(yang)做(zuo)有(you)很(hen)多(duo)不(bu)利(li)因(yin)素(su),一(yi)是(shi)剝(bo)好(hao)皮(pi)的(de)種(zhong)子(zi)生(sheng)理(li)機(ji)能(neng)代(dai)謝(xie)加(jia)快(kuai),呼(hu)吸(xi)加(jia)快(kuai),養(yang)分(fen)消(xiao)耗(hao)加(jia)劇(ju);二是容易受潮黴變,降低種子的發芽率;三san是shi幹gan燥zao後hou種zhong子zi易yi脫tuo皮pi,造zao成cheng播bo種zhong時shi種zhong子zi破po碎sui率lv增zeng加jia,降jiang低di了le種zhong子zi的de實shi用yong性xing,很hen難nan保bao證zheng花hua生sheng出chu苗miao後hou苗miao全quan。剝bo皮pi最zui好hao在zai花hua生sheng播bo前qian半ban個ge月yue為wei好hao。
藥劑拌種。近年來,花生青枯病、根腐病、莖jing腐fu病bing發fa生sheng猖chang獗jue,好hao多duo農nong戶hu不bu知zhi道dao提ti前qian處chu理li,而er是shi等deng到dao病bing害hai發fa生sheng時shi,才cai開kai始shi打da藥yao防fang治zhi,其qi實shi這zhe時shi候hou防fang治zhi已yi經jing晚wan了le,防fang治zhi效xiao果guo不bu理li想xiang。藥yao劑ji拌ban種zhong是shi一yi種zhong投tou資zi小xiao,防fang治zhi效xiao果guo又you較jiao為wei理li想xiang的de方fang法fa。因yin此ci播bo種zhong時shi必bi須xu拌ban種zhong,拌ban種zhong劑ji要yao因yin地di製zhi宜yi,不bu要yao盲mang目mu用yong藥yao。
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