Av feem ntau yuav muab faib ua alkaline av, nruab nrab av, thiab acidic av. Cov av nruab nrab yog tsim rau feem ntau cov qoob loo cog qoob loo, thaum muaj zog alkaline av thiab muaj zog acidic av tsis haum rau ntau cov nroj tsuag kev loj hlob, yog li kev ntsuas zoo yuav tsum tau coj los txhim kho. Tam sim no luv luv qhia txog txoj kev txhim kho ntawm alkaline av:
Cov ntsiab lus tseem ceeb ntawm Fertilization Techniques for Alkaline Av
Ua ntej, thaum fertilizing alkaline farmland av, kuj yuav tsum tau them nyiaj mloog mus rau nce daim ntawv thov ntawm decomposed organic chiv, decomposed farmhouse chiv, los yog straw rov qab mus rau lub teb, raws li organic chiv thiab farmhouse chiv muaj cov nyhuv ntawm regulating acidity thiab alkalinity. Kev siv lub sijhawm ntev tuaj yeem ua lub luag haujlwm zoo hauv kev txhim kho thiab kho cov av, ntsuas av acidity thiab alkalinity, thiab txhim kho av fertility.
Thib ob, hauv alkaline farmland av, fertilization tuaj yeem ua ke nrog kev siv cov chiv chiv (base chiv). Txhua daim av yog tsim los ntawm 40-50 kilograms ntawm calcium sulfate gypsum (nco ntsoov tias quicklime yog siv rau acidic av, xyuam xim rau qhov sib txawv), thiaj li yuav ua rau kom av acidity thiab txo cov av alkalinity los ntawm gypsum. Tom qab 2-3 xyoo, thaum cov av nyob ze rau nruab nrab lossis acidic me ntsis, nws tuaj yeem nres.
Thib peb, thaum fertilizing alkaline farmland av, tsis tsuas yog yuav tsum tsis txhob siv alkaline chiv dua (uas yuav ua rau aggravate cov av alkalinity), tab sis peb yuav tsum tau sim siv ntau acidic chiv li sai tau (siv cov acidity ntawm chiv kom maj mam txo cov av. alkalinity), xws li siv humic acid chiv, superphosphate, diammonium phosphate, poov tshuaj sulfate, calcium sulfate, ammonium sulfate, ammonium chloride, potassium chloride, ammonium nitrate, aluminium sulfate, thiab lwm yam Acid chiv xws li ferrous sulfate (nrog rau cov nyhuv ceev tab sis luv luv alkali. txo validity lub sij hawm) thiab sulfur hmoov (nrog qeeb nyhuv tab sis ntev alkali txo validity lub sij hawm).
Thib plaub, thaum fertilizing alkaline farmland av, yuav tsum tau them nyiaj mloog mus rau sib sib zog nqus daim ntawv thov txoj kev xws li daim ntawv thov lub qhov thiab ditch daim ntawv thov rau nitrogen chiv (tshwj xeeb tshaj yog ammonium bicarbonate), txwv tsis pub nws yog ib qho yooj yim ua rau ib tug loj npaum li cas ntawm ammonia nyob rau hauv nitrogen chiv kom evaporate thiab poob. cov as-ham;
Fifthly, alkaline av tuaj yeem txo qhov muaj phosphorus hauv av (phosphorus yooj yim kho thiab ploj los ntawm cov av), uas tuaj yeem ua rau phosphorus tsis txaus thaum lub sij hawm qoob loo loj hlob. Yog li ntawd, nyob rau hauv alkaline av fertilization, yuav tsum tau them nyiaj mloog mus rau nce tus nqi ntawm phosphorus kom tsim nyog.
Thib rau, cov qoob loo cog rau ntawm cov av alkaline muaj cov tsos mob tsis txaus xws li molybdenum, zinc, hlau, boron, thiab manganese deficiency. Yog li ntawd, thaum cog cov qoob loo ntawm cov av alkaline, nws raug nquahu kom siv cov chiv foliar raws sij hawm uas muaj cov ntsiab lus saum toj no thaum lub caij cog qoob loo kom tsis txhob muaj cov as-ham tsis txaus los ntawm kev cuam tshuam cov qoob loo loj hlob thiab tawm los.
Xya, thaum txhim kho alkaline av, tib neeg kuj tuaj yeem yuav cov av alkaline hloov kho rau kev siv.
