genjuhuashengdeyingyangtedian,huashenggaochandeguanjianshiyaoyoujiaogaodeturangfeilijichu,danzhegefeilijichubingbunengtongguodangnianzengshifeiliaodadao,ershichangqipeifeidejieguo。yinci,zaigaochanshifeishang,bixujianliyongdiyangdixiangjiehedepinghengshifeizhidu,tongguopinghengshifei,junhengdili,shihuashenggaochantianzaiyongzhongyang、養中用、用養結合。
有機肥和化肥相結合
為了提高花生田土壤的有效養分,並使其形成上鬆下實、qishuixietiaodetutijiegou,zaishifeizhongleishangbixuyoujifeiyuhuaxuefeiliaoxiangjiehe。youjifeibujinhanyoujiaofengfuyoujiaowanzhengdeyingyangyuansu,erqiehaihanyoukeyigailiangturangjiegoudeyoujizhi。huaxuefeiliaohanyingyangyuansudanyi,dansuxiaoyangfenhanlianggao,liangzhepeiheshiyongkeyixianghucujin,tigaofeixiao,gailiangturangjiegou,buduanpeifeidili。
前茬施肥與當茬施肥相結合 花hua生sheng有you喜xi乏fa肥fei的de特te點dian,高gao產chan花hua生sheng所suo需xu要yao的de營ying養yang元yuan素su,大da多duo吸xi自zi原yuan土tu壤rang中zhong,因yin此ci,在zai中zhong等deng以yi上shang地di力li的de花hua生sheng田tian,前qian茬cha施shi肥fei比bi花hua生sheng當dang茬cha施shi肥fei效xiao果guo更geng好hao,糧liang食shi多duo收shou,花hua生sheng豐feng產chan。據ju試shi驗yan,在zai前qian茬cha種zhong甘gan薯shu,後hou茬cha種zhong花hua生sheng,兩liang年nian兩liang茬cha作zuo物wu的de總zong施shi肥fei量liang相xiang同tong的de條tiao件jian下xia,甘gan薯shu以yi當dang茬cha施shi全quan肥fei的de產chan量liang最zui高gao,比bi不bu施shi肥fei的de增zeng產chan26.7%。花生前茬甘薯施全肥比當茬施全肥的增產14.7%。
在(zai)前(qian)茬(cha)施(shi)肥(fei)的(de)基(ji)礎(chu)上(shang),當(dang)茬(cha)種(zhong)花(hua)生(sheng)適(shi)當(dang)增(zeng)施(shi)肥(fei)料(liao),盡(jin)管(guan)花(hua)生(sheng)對(dui)所(suo)施(shi)肥(fei)料(liao)養(yang)分(fen)的(de)吸(xi)收(shou)利(li)用(yong)率(lv)較(jiao)低(di),但(dan)對(dui)中(zhong)產(chan)田(tian)增(zeng)產(chan)顯(xian)著(zhu),對(dui)高(gao)產(chan)田(tian)也(ye)有(you)一(yi)定(ding)的(de)增(zeng)產(chan)效(xiao)果(guo),並(bing)能(neng)補(bu)償(chang)產(chan)出(chu)消(xiao)耗(hao)的(de)土(tu)壤(rang)養(yang)分(fen)。所(suo)以(yi)花(hua)生(sheng)高(gao)產(chan)田(tian)施(shi)肥(fei),必(bi)須(xu)采(cai)取(qu)前(qian)茬(cha)增(zeng)肥(fei)培(pei)肥(fei)地(di)力(li),當(dang)茬(cha)施(shi)肥(fei)補(bu)償(chang)地(di)力(li),用(yong)養(yang)結(jie)合(he)的(de)平(ping)衡(heng)施(shi)肥(fei)方(fang)法(fa)。
基肥為主,追肥為輔
huashengkaihuaxiazhenqiyiqianshigenxixifeilizuiqianghexifeiliangzuiduodeshiqi,yincigaochanhuashengsuoxufeiliao,yaoquanbuhuodabufenjiehedonggenghezaochungengdizuojifeihezhongfeishiyong。ruguojifeibuzuyouweishizhongfei,keshidangzhuifei。danzhuifeishijianyaozao,yibanyukaihuaxiazhenqiyiqianjinxing。shengchangfayuzhonghouqiweilecujinjiaguodebaomandu,kejinxinggenwaizhuifei。
花生當茬的施肥比例
根據高產花生對氮、磷、鉀主要營養元素吸收量和肥料的吸收利用率,采用氮減半、磷加倍和鉀全量的施肥比例。即每畝施氮13.5公斤、磷11公斤、鉀16公斤,折合每畝施優質圈肥5000公斤、尿素13公斤或碳銨35公斤、過磷酸鈣72公斤、硫酸鉀22公斤或氯化鉀18公斤或草木灰138公斤。
中肥田土壤基礎肥力較低,要實現高產,采用氮、鉀全量施,磷肥加倍施的施肥比例。即每畝施氮27公斤、磷11公斤、鉀16公斤,折合每畝施優質圈肥5000公斤、尿素42.5公斤或碳酸氫銨115公斤、過磷酸鈣72公斤、硫酸鉀22公斤或氧化鉀或草木灰138公斤。
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