2.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(miao)1~2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。
3.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)苗(miao)全(quan)苗(miao)壯(zhuang)。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)。
4.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。
手機版




