Nrog rau cov hom phiaj tawm los nce xyoo-dhau-xyoo thiab cov nqi nplej nce ntxiv, tau txais txiaj ntsig zoo tshaj plaws ntawm koj cov qoob loo noj zaub mov tsis tseem ceeb dua.
Tom qab NPK, sulfur feem ntau suav hais tias yog plaub qhov tseem ceeb ntawm cov nroj tsuag vim nws yog qhov tseem ceeb rau kev loj hlob noj qab haus huv thiab kev loj hlob ntawm txhua hom qoob loo. Nrog kev txo qis ntawm cov nroj tsuag uas muaj leej faj tau yooj yim tam sim no nyob rau hauv ib puag ncig thiab nce zuj zus cov hom phiaj, cov neeg ua liaj ua teb yuav tsum tau xyuam xim ntxiv rau lub luag haujlwm ntawm cov sulfur hauv lawv cov qoob loo noj zaub mov. Hmoov zoo, sulfur yog cov khoom noj qis qis uas yooj yim ntxiv rau txhua qhov kev pab cuam khoom noj khoom haus los txhim kho cov txiaj ntsig ntawm cov khoom noj uas muaj nqi ntau dua.
Cia peb dhia dej mus rau qhov laj thawj thiab yuav ua li cas ua cov sulfur yog qhov tseem ceeb, tom qab ntawd saib ob yam khoom uas muab ntau lub suab nrov rau cov phaw.
Vim li cas cov qoob loo xav tau Sulfur
Sulfur yog ib qho ntawm 17 cov khoom noj tseem ceeb rau kev noj qab haus huv ntawm cov nroj tsuag.
Nrog rau calcium thiab magnesium, sulfur yog ib qho "secondary nutrient" thiab yog ib qho tseem ceeb ntawm ob amino acids siv hauv kev tsim cov protein. Nws yog ib qho tseem ceeb rau kev tsim chlorophyll (uas yog ib feem yog vim li cas cov nroj tsuag tsis muaj sulfur hloov daj) thiab hauv cov roj synthesis.
Sulfur pab tsim thiab qhib qee cov enzymes thiab cov vitamins uas pab cov nroj tsuag cov tshuaj lom neeg biochemical. Thiab nyob rau hauv legumes, nws txhawb nodulation los pab rhizobium kab mob hloov atmospheric nitrogen (N) rau hauv ammonia (NH)3).
Sulfur Demand nyob rau hauv cov qoob loo
Sulfur tsis tsuas yog ua lub luag haujlwm tseem ceeb hauv kev loj hlob ntawm cov nroj tsuag tab sis kuj tseem ceeb heev rau kev ua haujlwm ntawm lwm cov as-ham tseem ceeb.
Cov qoob loo cov sulfur yuav tsum tau sib txuas nrog nws cov nitrogen xav tau vim yog sulfur lub luag haujlwm hauv cov protein thiab chlorophyll lub tsev, thiab hloov cov nitrates (NO3) nyob rau hauv cov amino acids.
Qhov nruab nrab, cov qoob loo feem ntau siv 1 feem ntawm sulfur mus rau 10-14 feem nitrogen. Txawm li cas los xij, qee cov qoob loo cia siab ntau dua rau cov sulfur rau lawv cov txheej txheem physiological thiab vim li ntawd, lawv tau teb rau cov tshuaj sulfur ntxiv. Alfalfa, broccoli, cabbage, canola, cauliflower, celery, pob kws, qab zib beets, qab zib, rooj beets, turnips thiab watermelon yog ob peb yam qoob loo. Unsurprisingly muab qhov ncaj S:N thov kev sib raug zoo, ntau ntawm cov qoob loo no kuj yog cov neeg siv siab nitrogen.
Sulfur hauv av
Cov nroj tsuag siv cov sulfate (SO4) daim ntawv ntawm sulfur; Txawm li cas los xij, feem ntau cov sulfur hauv av tsis muaj rau cov nroj tsuag uas yog ib feem ntawm cov av organic teeb meem vim nws nyob rau hauv daim ntawv lawv tsis tuaj yeem nqus tau. Hmoov zoo, leej faj tau hloov mus rau hauv nws daim ntawv sulfate los ntawm kev hloov pauv microbial ntawm cov organic sulfur (sulfur ntxiv rau carbon & hydrogen), thiab los ntawm cov kab mob oxidation ntawm cov organic sulfur, hydrogen sulfide (H.2S) los yog elemental sulfur (S).
Sulfur tuaj yeem ua tau zoo ntawm kev tshem tawm (leaching) sodium thiab lwm cov cations ntau dhau los ntawm cov av, uas feem ntau muaj cov nyhuv acidifying uas tuaj yeem ua rau muaj lwm cov nroj tsuag tseem ceeb - tshwj xeeb tshaj yog hauv cov av calcareous lossis cov pH siab.
Cov cim qhia ntawm Sulfur Deficiency
Yav dhau los, cov qoob loo tau txais feem ntau ntawm lawv cov sulfur los ntawm huab cua hauv daim ntawv SO2gas. Txawm li cas los xij, kev hloov pauv roj thiab kev tswj cov pa phem tau ua tiav hauv kev txhim kho huab cua zoo rau tib neeg los ntawm kev tshem cov sulfur compounds los ntawm huab cua. Cov yam tseem ceeb no, ua ke nrog kev nce zuj zus thiab kev ua haujlwm ntawm kev ua liaj ua teb tau ua rau muaj kev cuam tshuam loj heev rau cov qoob loo niaj hnub no.
Predictably, cov qoob loo raug kev txom nyem los ntawm sulfur deficiency feem ntau pom cov tsos mob zoo ib yam li nitrogen deficiency. Tsuas yog tsis zoo li nitrogen, sulfur tsis yog mobile hauv cov nroj tsuag yog li koj pom yellowing ntawm cov nplooj yau, siab dua hauv cov nroj tsuag thiab hauv cov cheeb tsam tshiab; tsis zoo li nitrogen deficiency qhov twg yellowing tshwm sim nyob rau hauv cov nroj tsuag thiab / los yog nyob rau hauv qis nplooj.
Lwm cov cim qhia ntawm sulfur deficiency muaj xws li txo cov nroj tsuag qhov siab, kev loj hlob qeeb thiab qis tawm los.
Sulfur Application Methods
Muaj ntau ntau txoj hauv kev thiab cov khoom siv sib txawv kom tau raws li cov kev xav tau ntawm cov qoob loo niaj hnub no.
Rau cov qoob loo lub caij txias los yog cov qoob loo xws li pob kws uas tau cog rau hauv ib puag ncig txias, sulfur mineralization thiab microbial sulfur hloov dua siab tshiab yuav raug txo kom tsawg, ua rau txo qis ntawm cov nroj tsuag-muaj sulfur hauv av. Yog li ntawd, kev siv sulfur thaum ntxov tuaj yeem ua tau zoo rau cov tub ntxhais hluas txoj kev loj hlob.
Siv Sulfur In-Furrow Thaum Nroj Tsuag
Kev siv cov tshuaj sulfur nrog lub planter yog ib qho kev tso kawm zoo heev uas tau txais daim ntawv muaj nyob ntawm cov khoom noj nyob ib sab ntawm cov hauv paus system kom ua kom muaj txiaj ntsig zoo rau cov nroj tsuag tshiab. Qhov kev tso kawm no tseem tuaj yeem ua rau ib puag ncig zoo dua vim tias nws tau muab tso rau ze ntawm thaj tsam ntawm kev nce thiab yuav zoo li tau siv los ntawm cov nroj tsuag hluas ua ntej nws muaj lub sijhawm los tawm ntawm cov av.
Thaum xaiv cov sulfur additive los yog chiv los siv thaum koj cog, nrhiav ib qho uas sib xyaw sulfur thiab nitrogen nrog lwm cov micronutrients. AgroLiquid's eNhance yog ib qho sulfur-based additive tsim los txhim kho nitrogen usability thiab yog ib qho zoo heev cov noob muaj kev nyab xeeb ntawm cov qoob loo uas muaj leej faj.
eNhance tuaj yeem muaj kev nyab xeeb siv rau hauv-furrow nrog ntau tus nqi ntawm 1-2 qt ib acre rau ntau cov qoob loo thiab muab 3-6 phaus ntawm cov sulfur sib npaug ntawm cov nqi no. Hauv kev tshawb fawb, eNhance tau pom tias nce pob kws tawm los ntawm ntau dua 6 bu / A thaum thov hauv-furrow ntawm tus nqi ntawm 2 qt / A.
Daim duab 1 qhia cov ntaub ntawv los ntawm AgroLiquid's eNhance thiab accesS sulfur chiv hauv kev tshawb fawb ntau xyoo. Tsawg kawg yog 7 xyoo ntawm cov ntaub ntawv thiab 12 qhov kev sim tau siv los sib piv cov khoom noj khoom haus qoob loo nrog cov txiv hmab txiv ntoo uas siv cov sulfur rau ib qho kev cog qoob loo uas tsis muaj leej faj.
Daim duab 1: Qhov cuam tshuam ntawm Sulfur Fertilizer rau pob kws tawm los
Keeb kwm: AgroLiquid
Siv Sulfur Nrog Nitrogen
Siv nitrogen thaum cog muab lub sijhawm zoo los ntxiv cov sulfur rau cov khoom noj kom tau txais txiaj ntsig zoo tshaj plaws ntawm koj daim ntawv thov chiv.
Thaum lub sij hawm cog, nitrogen chiv feem ntau muab tso rau 2x2 los yog ntawm ib los yog ob sab ntawm kab - tom kawg uas yog ntau dua. Cov chaw tso chaw uas nyob ib sab ntawm tab sis deb ntawm cov noob tseem muaj txiaj ntsig zoo rau cov tub ntxhais hluas hauv paus system.
accesS yog cov kua tshuaj sulfur uas muaj txiaj ntsig zoo uas sib xyaw nrog cov kua nitrogen chiv kom siv-tawm ntawm cov noob-hauv daim ntawv thov qauv saum toj no. Ib daim ntawv thov cog qoob loo yuav yog 1-2 nkas loos ib evkawj, uas muab 5-10 phaus sulfur ntawm daim ntawv thov no.
Xaus
Nrog rau kev ua liaj ua teb ntau ntxiv, kev siv chiv nce ntxiv, kev txhim kho hauv cov dej hauv av, ua kom cov qoob loo loj dua, cov qoob loo tshiab tau txais txiaj ntsig zoo thiab cov hom phiaj loj hlob zuj zus, niaj hnub no cov teb thiab cov qoob loo cia siab rau cov tshuaj sulfur ntau dua li yav dhau los.
Txawm hais tias koj siv cov khoom dab tsi los yog thaum koj thov, ua tib zoo saib xyuas cov qib ntawm sulfur hauv koj cov av thiab cov qoob loo cov khoom noj khoom haus yuav ua rau cov nyiaj tau los ntawm lub sijhawm sau qoob.
Sau los ntawm Emily Newhouse thiab thawj zaug luam tawm hauv IFA Cooperator magazine (vol. 87, no. 3) Caij nplooj zeeg 2021.
