Hauv kev lag luam chiv, muaj kev faib tawm ntawm chiv, suav nrog macroelement chiv, nruab nrab keeb chiv chiv. Cov neeg feem coob tseem tsis yog qhov tsis txaus ntseeg txog cov ntsiab lus no, cov neeg siv tshuaj pleev kom zoo nkauj, tus neeg siv tshuaj motassium, piv txwv li kev paub zoo rau kev faib tawm ntawm chiv. Cov as-ham cov as-ham ntawm chiv yog cov khoom siv tshuaj lom peb tab tom tham txog. Qhov tseeb kev faib tawm ntawm cov tshuaj lom neeg noj zaubmov yog macroelemement chiv, cov chiv nruab nrab hauv nruab nrab thiab kab keeb chiv.
1. Lub macroel yog dab tsi?
Hais txog macroelement, dab tsi xyov yog nws? Nws yog ib qho uas muaj lus nug, nws yog hom lus sau. Nyob rau hauv cov ntsiab lus txhais ntawm macronutrients, nws tseem hu ua "macronutrient." Nws yog tseem tsis tseem ceeb rau cov qoob loo loj hlob, thiab nws kuj tseem yog lub ntsiab hauv kev thov loj tshaj plaws. Nws tseem hu ua qee qhov loj ntawm cov ntsiab lus, xws li: hydrogen, nitrogen, potassgen, potassgen, carbon, feem ntau yog los ntawm huab cua, thaum gases feem ntau yog los ntawm cov Av.
Thaum lub sij hawm kev loj hlob ntawm cov qoob loo, pectin, liignin, etc. Tsim los ntawm cov carbon, oxygen, thiab hydrogen. Qhov no ua cov phab ntsa ntawm tes ntawm cov qia thiab nplooj ntawm cov qoob loo, uas yog txheej txheem ntawm cov qoob loo loj hlob. Ntawm lawv, lub macro-lub ntsiab chiv yog nitrogen, phosphorus, phosphorus thiab potassium. Nws yuav tsum muaj tseeb los ntawm no tias macroelements feem ntau xa mus rau nitrogen, phosphorus thiab potassium.
①nitrogen chiv
Urea, ammonium nitrate, ammonium sulfate, ammonium chloride thiab ammonium bicarizers yog cov uas urea yuav tsum yog qhov nrov tshaj plaws.
②phosphate chiv
Superphosphate, ob chav superphosphate, monoamammonium phospphate, ua haujlwm phosphate, thiab lwm yam kuj siv tau ntau dua li phosphorus. Txhua tus muaj nws tus kheej cov yam ntxwv thaum siv thaum siv, thiab koj tuaj yeem xaiv tshwj xeeb raws li cov xwm txheej tshwj xeeb.
③potassium chiv chiv
Poov tshuaj nitrate, poov tshuaj dihydrogen phosphate, potassium chloride, etc. ntawm lawv, poov tshuaj dihatium dihydrogen phosphate yuav tsum paub zoo. Kuv tus kheej sau cov ntawv feem ntau txog poov tshuaj dihydrogen phosphate. Poov tshuaj sulfate yog kim kim dua cov poov tshuaj ntau dua li poov tshuaj tshuaj chloride, tab sis cov poov tshuaj acidic thiab tsis haum rau cov av acidic. Txhua qhov chiv muaj nws tus yam ntxwv, thiab koj tuaj yeem xaiv nws raws li cov av tej yam.
2. Dab tsi yog lub ntsiab lus ntawm nruab nrab ntsiab? Hais txog cov ntsiab lus nruab nrab, lawv kuj tau hu ua "me tas mus li". Ntawd yog, lub luag haujlwm lossis lub luag haujlwm yog thib ob nkaus xwb rau macroelements, tab sis cov khoom nruab nrab kuj tseem yog qhov tseem ceeb lossis tsis tseem ceeb rau cov qoob loo. Cov neeg sawv cev ntawm cov nyiaj nruab nrab no: calcium, magnesium thiab leej faj. Txhawm rau hais tias cov no yog cov macroel yog tseem muaj kev sib piv nrog tus nqi ntawm macroelement chiv siv. Txhawm rau muab tso, cov tshuaj tsuas yog ntawm cov chiv ntawm cov chiv no yog qhov me me, thiab ob peb cov neeg tau them nyiaj rau kev siv cov chiv ntawm cov chiv keeb kwm yav dhau los.
①trepresentive ntawm calcium fertilizer
Txiv qaub thiab Gypsum, cov calcium fertilizers. Tseem muaj superphosphate, ob chav superphosphate, calcium nitrate, calcium calcium chiv, etc. Cov no yog cov khoom siv nruab nrab ntau dua calcium chiv.
②rrepresentive ntawm magnesium fertilizer
Magnesium sulfate, Magicium Chloride, cov hmoov av magsacle, Magicium nitrate hexahydate, thiab lwm yam siv cov chiv siv magnesium.
③rrepresentatenive ntawm cov txiv lws suav chiv
Gypsum, ammonium sulfate, poov tshuaj sulfate, superassium sulfate, superphosphate, leej faj, kuj siv tau siv cov chiv dej sulfur.
3. Dab tsi yog txoj kab lus?
Hais txog cov lus txhais ntawm txoj kab lus no, nws yog tsuas yog siv hauv cov nyiaj me me piv rau macroelements thiab cov ntsiab lus nruab nrab. Tsis tsuas yog cov tshuaj me me, tab sis cov qoob loo nqus me me, tab sis nws yog qhov tsis tseem ceeb. Niaj hnub no siv cov kab niaj hnub no suav nrog: Boron, hlau, manganese, tooj liab, tooj thiab lwm yam.
①rrepresentatenive ntawm boron chiv
Borax, boric acid, sodium tetraborate anhydrod, sodium tetrabinate Ovenabore, thiab sodium tetraborate denhydrate. Cov no yog cov boron ntau dua chiv keeb, thiab ntau tus neeg yuav tsum tau siv borax.
②Zinc Lim Kev Sawv Cev
Zinc sulfate, zinc nitrate, zinc chloride, chelated zinc, thiab lwm yam.
③rrepresentive ntawm cov hlau chiv
Ferrous sulfate, lign ferric sulfate, fertic sulfate, cov hlau humate, boiled hlau chiv, thiab lwm yam hlau tsis txaus yuav ua rau cov nplooj poob lawv cov xim ntsuab. Nyob rau hauv ntau kis, tsuag boiled hlau chiv tuaj yeem daws cov teeb meem sai heev.
Lub Sijhawm Post: Jun-03-2024
