Yuav ua li cas sib npaug ntawm fertilization rau pob kws?
Pob kws yog cov qoob loo uas xav tau ntau cov khoom noj khoom haus thiab cov txheej txheem fertilization tseem ceeb heev, thiab kev sib npaug ntawm cov tshuab fertilization ntawm pob kws tuaj yeem ua rau pob kws ua tiav lub hom phiaj ntawm kev tawm los zoo. Yog li yuav ua li cas sib npaug ntawm fertilization nrog pob kws?
Cov yam ntxwv ntawm pob kws chiv xav tau thiab fertilization cov hauv paus ntsiab lus
Pob kws yog rhiab heev rau nitrogen chiv, nyob rau hauv lub hauv paus ntawm kev sib xyaw ntawm farmhouse fertilizer thiab phosphate fertilizer, nyob rau hauv thaj tsam ntawm 3-10 kg ntawm urea ib evkawj, 1 kg ntawm urea tuaj yeem nce yield ntawm 6-11 kg pob kws. Pob kws xav tau phosphorus tsawg dua, tab sis nws tsis tuaj yeem ploj mus, thiab qhov tsis muaj phosphorus nyob rau theem peb-nplooj yuav ua rau lub ntsej muag ntawm qhov khoob khoob rau yav tom ntej. Pob kws kuj yog cov qoob loo uas nyiam cov zinc, thiab kev siv zinc chiv ua kom cov qoob loo nce txog 15%. Lub hauv paus ntsiab lus ntawm cov pob kws fertilization yog raws li cov organic chiv, nrog hnyav daim ntawv thov ntawm nitrogen chiv, haum daim ntawv thov ntawm phosphorus chiv, nce daim ntawv thov ntawm poov tshuaj chiv, thiab ua ke daim ntawv thov ntawm micro chiv, xws li EDTA Zn. Farmhouse fertilizer yog tov nrog phosphorus, poov tshuaj thiab micro chiv ua chiv, thiab nitrogen chiv yog feem ntau topdressed. Caij nplooj ntoos hlav pob kws topdressing yuav tsum yog lub teeb ua ntej thiab tom qab ntawd hnyav, thiab lub caij ntuj sov pob kws yuav tsum hnyav ua ntej thiab tom qab ntawd lub teeb.
Kev txiav txim siab ntawm tus nqi ntawm fertilization thov rau pob kws
Kev sim tau pom tias 5 kg ntawm nitrogen, 2 kg ntawm phosphorus thiab 3 kg ntawm poov tshuaj yog xav tau rau txhua txhua 100 kg ntawm pob kws yield nce rau nruab nrab fertility plots. Cov chiv no yooj yim heev rau kev siv, tsuas yog muab cov lej ntawm 100 kilograms ntawm cov qoob loo nce ntxiv los ntawm cov chiv uas xav tau rau 100 kilograms ntawm nplej. Qhov no tsuas yog siv cov txheej txheem suav, thiab daim ntawv thov tshwj xeeb yuav tsum tau kho kom haum raws li qhov chaw thiab ntau yam sib txawv. Kev siv chiv ntau npaum li cas ntawm 1, 000 kg ntawm pob kws yog: 1500 kg ntawm chiv chiv, 9-11 kg ntawm nitrogen, 4-5 kg ntawm phosphorus, 5-6 kg ntawm poov tshuaj, thiab 1 kg ntawm zinc fertilizer.
Pob kws fertilization method
(1) qhib lub caij nplooj ntoos hlav pob kws: qhov yuav tsum tau phosphorus, potassium, zinc chiv thiab 2-3 kg ntawm urea thiab ib co fumate humic acid yuav tsum tau tov nrog farmhouse fertilizer, thov mus rau lub noob qhov, haum rau sowing. Ntxiv nitrogen chiv yog tseg rau saum hnav khaub ncaws. Mulching ncaj qha noob pob kws nyob rau hauv roob roob: Mulch pob kws loj hlob zoo thiab noj ntau cov as-ham. Nws yog ib qho tsim nyog yuav tau siv phosphorus, potassium, zinc chiv thiab 70% nitrogen chiv yuav tsum tau rau tag nrho lub sij hawm loj hlob ntawm pob kws ua lub hauv paus chiv. Txoj kev yog txiav ib lub furrow 3-4 ntiv tes tob thiab txog 8 ntiv dav ntawm ob kab ntawm pob kws sown. Nitrogen chiv yog siv rau hauv qab txheej ua ntej, thiab tom qab ntawd tag nrho cov phosphorus, potassium, Fumate humic acid thiab zinc fertilizer yog tov nrog farmhouse fertilizer thiab thov rau saum nitrogen chiv. Tom qab ntawd lub ridge yog mulched, ridge qhov siab yog 2-3 ntiv tes, thiab zaj duab xis yog sown thiab mulched.
(2) Cov noob qoob loo rau cov noob tsis muaj coated, cov noob qhuav rau 2-3 hnub ua ntej sowing, ntxiv ib los yog ob taels dej nrog zinc fertilizer, mix 1.5-2 kg ntawm noob, pawg rau 1 teev, kis tawm thiab qhuav hauv qhov ntxoov ntxoo kom sow noob. Thaum tseb, cov neeg ua liaj ua teb tsim nyog siv li 20 qhov kev xaiv ntawm tib neeg thiab tsiaj txhu thiab cov zis los sib tov 2 kg ntawm urea ib mu, thiab tseb noob thaum da dej lub zes kom ua tiav cov qoob loo thiab muaj zog yub.
Balanced fertilization cov txheej txheem rau pob kws
1. Kev hnav khaub ncaws sab saum toj ntawm lub caij nplooj ntoos hlav pob kws nyob rau hauv qhov qhib yuav tsum yog lub teeb nyob rau hauv pem hauv ntej thiab hnyav nyob rau hauv lub nraub qaum. Nitrogen fertilizer topdressing fertilizer (6-7 nplooj theem) accounted rau 1/3 ntawm tag nrho cov nitrogen daim ntawv thov, thiab trumpet fertilizer (10-11 nplooj theem) accounted rau 1/3.
2. Lub caij ntuj sov pob kws topdressing yuav tsum hnyav ua ntej thiab lub teeb tom qab. Vim muaj kev ua liaj ua teb tsis khoom thiab lub sijhawm ua liaj ua teb nruj, feem ntau ntawm lub caij ntuj sov sown pob kws yog cog rau hauv cov noob dawb, thiab kev hnav khaub ncaws sab saum toj yog qhov tseem ceeb heev. Jointing chiv (5-6 nplooj theem) yuav tsum suav rau ob feem peb ntawm tag nrho cov nitrogen thov tus nqi, thiab trumpet chiv (10-11 nplooj theem) yuav tsum suav rau ib feem peb.
3. Hloov cov pob kws saum toj kawg nkaus hnav khaub ncaws: Thaum hloov pauv, kwv yees li 10 kg ntawm urea lossis lwm yam nitrogen chiv ntawm tib tus nqi yog sib xyaw rau hauv tib neeg quav thiab tso zis ib mu. Muab cov zaub mov noj ua ntej, thiab tom qab ntawd yaug cov quav thiab tom qab ntawd npog lub zes los hloov cov chiv sib koom ua ke. Thaum lub tswb nrov, txog 15 kg ntawm urea yog siv dua.
4. Mulch zaj duab xis pob kws: vim muaj qhov txaus ntawm cov chiv thiab cov chiv ntev ntev, 30% ntawm cov tsis siv nitrogen chiv rau ib mu yuav siv rau saum toj kawg nkaus ntawm lub qhov ncauj theem. Txoj kev yog los ua ib qho chiv txhua ob lub pob kws cog thiab siv chiv.