糞肥要充分腐熟 菜農在施用糞肥時存在以下問題:一是鮮糞腐熟時間過短,糞肥中產生的氨等有毒物質不能及時轉換,蔬菜定植後造成危害;ershizaiturangchulihouzaishirufenfei,turangzhongquefashengwujun,fenfeizhongxiedaideyouhaijundengkenengdaliangfanzhi,qiefushubuchedi,rongyichuxianshaomiaowenti。jianyifenfeishiyonggenjuzijipengshidejutiqingkuangerding,ruoxiachashucaidingzhishijianlinjin,kezaishifenfeihouzengshifajiaojunji,zengjiaturangzhongdefajiaojun,jiakuaifenfeifushu;若離下茬蔬菜定植時間還遠,可配合高溫悶棚,將糞肥提前施入土壤,殺滅糞肥中攜帶的病原菌、蟲卵等,保證糞肥充分腐熟。
要徹底疏鬆土壤 cainongzaifandishipubiancunzaifangengshendubugouhefangengfanweixiaodequedian。shouxian,muqiancainongpubianshiyongdeshixuangengji,fandihoukanzhetucengshenhoushusong,danshijixuangengshendudabufendabudao20厘米,連年用這種旋耕機翻地會造成犁底層上移,土壤透水性下降,根係生長範圍受到限製,不利於蔬菜生長;其(qi)次(ci),很(hen)多(duo)菜(cai)農(nong)為(wei)了(le)省(sheng)事(shi),隻(zhi)翻(fan)耕(geng)種(zhong)植(zhi)行(xing),壟(long)則(ze)沒(mei)有(you)進(jin)行(xing)翻(fan)耕(geng),由(you)於(yu)這(zhe)些(xie)壟(long)經(jing)過(guo)長(chang)期(qi)踩(cai)踏(ta),土(tu)壤(rang)板(ban)結(jie)堅(jian)實(shi),也(ye)限(xian)製(zhi)了(le)根(gen)係(xi)的(de)生(sheng)長(chang),不(bu)利(li)於(yu)培(pei)養(yang)壯(zhuang)棵(ke)。建(jian)議(yi)盡(jin)量(liang)用(yong)犁(li)或(huo)鐵(tie)鍁(xian)人(ren)工(gong)深(shen)翻(fan)土(tu)壤(rang),近(jin)年(nian)來(lai)有(you)不(bu)少(shao)菜(cai)農(nong)用(yong)專(zhuan)門(men)的(de)小(xiao)型(xing)挖(wa)掘(jue)機(ji)翻(fan)地(di),翻(fan)耕(geng)深(shen)度(du)可(ke)達(da)50厘米,有效解決了翻耕過淺的問題。要每2-3年深翻土壤一次,在翻地時,應盡量將壟一起翻耕,以徹底疏鬆土壤,利於蔬菜根係的舒展。
害蟲防治要到位 換huan茬cha期qi是shi害hai蟲chong防fang治zhi的de有you利li時shi機ji,但dan大da多duo數shu菜cai農nong在zai翻fan地di時shi往wang往wang忽hu視shi了le這zhe一yi點dian。現xian在zai很hen多duo菜cai農nong共gong用yong一yi個ge旋xuan耕geng機ji,或huo雇gu傭yong別bie人ren翻fan地di,旋xuan耕geng機ji使shi用yong前qian如ru果guo沒mei有you進jin行xing消xiao毒du,就jiu會hui將jiang一yi個ge棚peng室shi的de病bing菌jun、害蟲傳播到其他棚室,特別是根結線蟲,可通過機械、鞋(xie)底(di)上(shang)的(de)泥(ni)土(tu)傳(chuan)播(bo),危(wei)害(hai)很(hen)大(da)。建(jian)議(yi)菜(cai)農(nong)在(zai)共(gong)用(yong)旋(xuan)耕(geng)機(ji)時(shi)做(zuo)好(hao)消(xiao)毒(du)工(gong)作(zuo),將(jiang)機(ji)器(qi)上(shang)的(de)泥(ni)土(tu)清(qing)理(li)幹(gan)淨(jing)。對(dui)棚(peng)室(shi)內(nei)根(gen)結(jie)線(xian)蟲(chong)危(wei)害(hai)嚴(yan)重(zhong)的(de)地(di)段(duan),翻(fan)地(di)時(shi)應(ying)做(zuo)好(hao)標(biao)記(ji),單(dan)獨(du)用(yong)鐵(tie)鍁(xian)進(jin)行(xing)深(shen)翻(fan)或(huo)最(zui)後(hou)再(zai)翻(fan)那(na)裏(li),避(bi)免(mian)根(gen)結(jie)線(xian)蟲(chong)擴(kuo)散(san)。
henduocainongfandihou,jiangpengshiqianbuhedingbudetongfengkoudakai,yiweipengneimeiyoushucai,haichongjiubuhuijinru。danzhegejijiezhengshihaichonghuodongpinfandeshihou,tamenhenkenenghuijinrupengshichanluan,jierweihaixiachashucai。
jianyizaifandihoujishishezhifangchongwang,bimianwaijiehaichongjinrupengshi,tebieshipengshiqianbudetongfengkou。pengshizhouweidezacaoyaojishiqingchu,bimianqichengweihaichongqinrupengneidezhongzhuanzhan。
殘株雜草要清淨 不少菜農在翻地時圖省事,將棚室內的殘株、雜草等翻到地裏。這樣做潛在危害很大,首先,這些殘株、雜草上帶有很多病菌和蟲卵,將其翻到地裏,會加重一些土傳病害(辣椒疫黴根腐病、番茄枯萎病等)和白粉虱的發生;其(qi)次(ci),蔬(shu)菜(cai)殘(can)株(zhu)留(liu)在(zai)土(tu)壤(rang)中(zhong),腐(fu)爛(lan)後(hou)會(hui)產(chan)生(sheng)一(yi)些(xie)自(zi)毒(du)物(wu)質(zhi),若(ruo)下(xia)茬(cha)仍(reng)然(ran)種(zhong)植(zhi)同(tong)種(zhong)蔬(shu)菜(cai),就(jiu)會(hui)影(ying)響(xiang)其(qi)正(zheng)常(chang)生(sheng)長(chang)。建(jian)議(yi)拔(ba)園(yuan)時(shi)盡(jin)量(liang)將(jiang)植(zhi)株(zhu)根(gen)係(xi)全(quan)部(bu)從(cong)土(tu)壤(rang)中(zhong)拔(ba)出(chu)。清(qing)理(li)殘(can)株(zhu)時(shi),種(zhong)植(zhi)行(xing)裏(li)的(de)爛(lan)果(guo)、luoye,haiyoupengshineiwaidezacaoyeyaoqingchuganjing。qinglichupengshidecanzhubuyaoduifangzaipengshifujin,eryingyundaozhuanmendedifangcunfanghuoyanmai,yimiancanzhushangdebingyuanjundengsuifeng、雨水、昆蟲或人等傳入棚室。
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