Hydroponics Nutrient Solution Formula

Hydroponics yog ib txoj kev cog qoob loo uas muaj ntau yam khoom noj uas xav tau rau cov nroj tsuag kev loj hlob thiab kev loj hlob yog tsim rau hauv cov kev daws teeb meem rau kev nqus ncaj qha thiab siv los ntawm cov nroj tsuag. Hydroponic loj hlob tuaj yeem muab faib ua tsib hom, uas yog hydroponics loj hlob, txoj kev cog qoob loo ntawm xuab zeb, substrate cultivation, mixed cultivation method and nutrient film cultivation, of which hydroponics and substrate cultivation method is the most commonly used. Kev cog qoob loo tsis muaj av tsis txwv los ntawm cov xwm txheej, tsuav yog muaj huab cua thiab dej, qhov cuab yeej no tuaj yeem siv los cog zaub.

Cov ntsiab lus ntawm cov khoom noj khoom haus yog tsim los ntawm ntau tshaj kaum hom ntawm qhov tsis tu ncua thiab kab kawm xws li nitrogen, phosphorus, potassium, calcium, hlau, magnesium, sulfur, boron, zinc, tooj liab, molybdenum thiab chlorine, uas muaj nyob rau hauv daim ntawv. ntawm ntsev. Txawm li cas los xij, thaum cov nroj tsuag nqus cov as-ham, lawv tsis nqus ntsev molecules, tab sis cov ions cuam tshuam.

Fertilizer xaiv rau formulating nutrient tov

Cov tshuaj muaj pes tsawg leeg muaj xws li cov ntxhia cov as-ham tsim nyog rau cov qoob loo loj hlob. Dab tsi ntawm cov chiv siv los muab cov as-ham no yog thawj qhov kev txiav txim siab thaum npaj cov khoom noj khoom haus.

Txij li thaum cov as-ham ntawm kev tiv thaiv cultivation yog drip irrigation rau hauv lub substrate los ntawm tag nrho cov nqi nutrient tov, cov nroj tsuag hauv paus system absorbs dej thiab as-ham los ntawm substrate. Yog li ntawd, yuav tsum tsis muaj nag lossis daus hauv cov khoom noj khoom haus, yuav tsum muaj pH haum, thiab tsis muaj tshuaj lom neeg tuaj yeem tshwm sim ntawm cov khoom.

Yog li ntawd, ua tib zoo xav txog cov solubility, pH, stability ntawm cov chiv, lub thib ob Cheebtsam coj nyob rau hauv, nqe thiab lwm yam, nws yog txiav txim siab hais tias lub nitrogen qhov chaw yog tsuas yog urea thiab calcium nitrate, thiab poov tshuaj nitrate yog ntxiv. Potassium dihydrogen phosphate thiab phosphoric acid yog qhov nyiam ntawm phosphorus. Potassium qhov chaw yog cov poov tshuaj sulfate, ntxiv los ntawm potassium nitrate. Cov calcium yog muab los ntawm calcium nitrate, qhov chaw ntawm magnesium yog magnesium sulfate, thiab qhov chaw ntawm cov hlau yog chelated hlau. Cov khoom siv tshuaj ntawm tooj liab, zinc, manganese, boron, molybdenum, thiab chlorine yog qhov ruaj khov, cov sulfates ntawm tooj liab, zinc, thiab manganese muaj solubility zoo, thiab leej faj kuj xav tau los ntawm cov nroj tsuag, yog li sulfates feem ntau siv. Borax yog siv rau boron, thiab sodium molybdate yog siv rau molybdenum. Qhov xav tau chlorine tsawg heev, thiab cov tshuaj chlorine hauv cov dej yog qhov yooj yim txaus.

Common Zaub Soilless Cultivation Nutrient Solution Formula

Thaum ua cov av tsis muaj kab lis kev cai daws teeb meem, cov qoob loo sib txawv xav tau cov chiv sib txawv, thiab yog li cov qauv ntawm cov as-ham kuj sib txawv. Ntau cov qauv kev daws teeb meem tau teev tseg hauv qab no, thiab cov qauv tuaj yeem xaiv tau raws li qhov xav tau lossis siv los ua ib qho kev siv.

1. Formulation of horticultural balanced nutrient solution (dosage unit mg/L): calcium nitrate 950, potassium nitrate 81{{10}}}, magnesium sulfate 500, ammonium dihydrogen phosphate 155, EDTA hlau sodium ntsev 15-25, boric acid 3, manganese sulfate 2, zinc sulfate 0.22, tooj liab sulfate 0.05, sodium molybdate los yog ammonium molybdate 0.02.

2. Txiv lws suav nutrient tov mis (dosage unit mg/L):

Formula 1 (Netherlands Greenhouse Horticultural Research Institute) Calcium nitrate 1216, Ammonium nitrate 42.1, Potassium dihydrogen phosphate 208, Potassium sulfate 393, Potassium nitrate 395, Magnesium sulfate 466;

Formula 2 (Chen Zhende, thiab lwm yam) urea 427, diammonium phosphate 600, potassium dihydrogen phosphate 437, potassium sulfate 670, magnesium sulfate 500, EDTA hlau sodium ntsev 6.44, manganese sulfate 1.72. sulfate 1.46, boric acid 2.38, tooj liab sulfate 0.20, molybdenum Sodium acid 0.13;

Formula 3 (Shandong Agricultural University) calcium nitrate 590, potassium nitrate 606, magnesium sulfate 492, superphosphate 680.

3. Cucumber nutrient solution formula (Shandong Agricultural University, dosage unit mg/L): calcium nitrate 900, potassium nitrate 810, magnesium sulfate 500, superphosphate 840.

4. Watermelon nutrient solution formula (Shandong Agricultural University, dosage unit mg/L): calcium nitrate 1000, potassium nitrate 300, magnesium sulfate 250, superphosphate 250, potassium sulfate 120.

5. Cov nplooj ntsuab ntsuab cov kua txiv hmab txiv ntoo (dosage unit: mg/L): calcium nitrate 1260, potassium sulfate 250, potassium dihydrogen phosphate 350, magnesium sulfate 537, ammonium sulfate 237.

6. Lettuce nutrient solution formula (dosage unit: mg/L): calcium nitrate 658, potassium nitrate 550, calcium sulfate 78, ammonium sulfate 237, magnesium sulfate 537, monocalcium phosphate 589.

7. Cov tshuaj celery nutrient tov (dosage unit mg/L):

Formula 1, magnesium sulfate 752, monocalcium phosphate 24, potassium sulfate 500, sodium nitrate 644, calcium sulfate 337, potassium dihydrogen phosphate 175, sodium chloride 156;

Formula 2 (Wang Xuejun) calcium nitrate 295, potassium sulfate 404, ob chav superphosphate 725, calcium sulfate 123, magnesium sulfate 492.

8. Eggplant nutrient solution formula (ntau npaum li cas hauv mg/L): calcium nitrate 354, potassium sulfate 708, ammonium dihydrogen phosphate 115, magnesium sulfate 246.

9. Kev siv tshuaj lom neeg (ntau tshaj rau txhua hom tshuaj): 20-40 ferrous sodium ntsev ntawm EDTA, 15 ferrous sulfate, 2.86 boric acid, 4.5 borax, 2.13 manganese sulfate, 0 .05 tooj liab sulfate, thiab 0.22 zinc sulfate.

Cov qauv saum toj no yog qhov kev faib ua feem ntawm cov as-ham uas yuav tsum muaj nyob rau hauv cov khoom noj khoom haus thaum cov qoob loo cog rau hauv daim ntawv ntawm cov kab lis kev cai tsis muaj av, thaum cov noob loj hlob rau hauv cov nroj tsuag. Thaum loj hlob seedlings, qhov sib piv ntawm cov as-ham no kuj siv tau, tab sis qhov concentration ntawm cov as-ham yuav tsum tau txo kom tsim nyog kom tsis txhob muaj kev loj hlob ntawm cov yub los ntawm kev cuam tshuam los ntawm ntsev ntau dhau hauv substrate, thiab nplooj saum npoo ntawm cov yub yuav tsum tau txo qis. tau yooj yim puas thaum lub evaporation loj heev.

Teeb meem yuav tsum tau them sai sai rau thaum npaj cov zaub mov tov

1. Thaum npaj cov khoom noj khoom haus, tsis txhob siv cov thawv hlau, cia ib leeg siv los khaws cov khoom noj khoom haus. Nws yog qhov zoo dua los siv iav, enamel, thiab cov thawv ceramic.

2. Cov teeb meem dej ntawm cov khoom noj khoom haus: cov dej nag ntuj yog cov dej nyab xeeb tshaj plaws, tab sis cov dej nag tau txais los ntawm lub tsev cog khoom siv PVC zaj duab xis yog cuam tshuam los ntawm plasticizer phthalate; cov dej nag tau txais los ntawm iav tsev cog khoom yuav ua rau muaj kab mob boron ntau dhau. Cov dej zoo muaj ntau cov tshuaj chlorine, calcium, hlau, magnesium, thiab kab kawm xws li zinc, tooj liab, thiab molybdenum. Nws yog ib qho tsim nyog los tshuaj xyuas cov ntsiab lus ntawm cov ntsiab lus hauv dej ua ntej txhawm rau txiav txim siab qhov tsim nyog nce lossis txo qis thaum npaj cov kev daws teeb meem. Thaum siv cov dej kais dej thiab cov dej ntws, cov teeb meem kev ua me nyuam feem ntau tshwm sim los ntawm cov tshuaj chlorine seem thiab cov tshuaj tua kab mob sib xyaw ua ke, tshwj xeeb tshaj yog, cov kais dej tsis tau dechlorinated, thiab cov tshuaj chlorine seem yuav ua rau cov zaub hauv paus rot. Thaum cov khoom noj khoom haus zoo li dej ntws, dej zoo, thiab dej kais dej muaj ntsev ntau, nws tuaj yeem raug tshem tawm los ntawm distillation, ion exchange, los yog electrodialysis. Nws yog kev lag luam ntau dua los siv cov dej nag hloov.

Yuav ua li cas kho tus nqi pH ntawm cov khoom noj khoom haus

Cov pH ntawm cov khoom noj khoom haus ncaj qha cuam tshuam rau lub xeev, kev hloov pauv thiab muaj cov khoom noj hauv cov khoom noj khoom haus. Piv txwv li, phosphate yog nquag los nag thaum nws yog alkaline, uas cuam tshuam rau nws txoj kev siv; manganese, hlau, thiab lwm yam yuav tsis txaus vim qhov txo qis hauv solubility hauv alkaline tov. Yog li ntawd, kev hloov pauv ntawm tus nqi pH hauv cov khoom noj khoom haus tsis tuaj yeem tsis quav ntsej.

Tus nqi pH tuaj yeem txiav txim siab los ntawm kev sib xyaw ua ke ntawm colorimetric txoj kev, thiab pH tus nqi ntawm cov khoom noj khoom haus tuaj yeem txiav txim siab raws li cov yam ntxwv ntawm qhov taw qhia qhia cov xim sib txawv hauv cov khoom noj uas muaj pH sib txawv. Cov kev daws teeb meem feem ntau yog npaj nrog dej zoo lossis dej kais dej. Yog tias tus nqi pH ntawm cov dej hauv qhov nruab nrab yog qhov nruab nrab lossis alkaline me ntsis, tus nqi pH ntawm cov khoom noj khoom haus npaj tau zoo ib yam li cov dej hauv dej, thiab yog tias nws tsis sib xws, nws yuav tsum tau kho.

Thaum kho tus nqi pH, thawj zaug dilute cov kua qaub muaj zog thiab muaj zog alkali nrog dej (siv phosphoric acid los yog sulfuric acid rau neutralize thaum cov as-ham yog alkaline dhau lawm, thiab siv sodium hydroxide rau neutralize thaum nws acidic dhau lawm), thiab tom qab ntawd ntxiv rau. cov as-ham poob los poob. Nyob rau tib lub sijhawm, txuas ntxiv ntsuas nrog cov ntawv ntsuas pH kom txog thaum nws tsis muaj zog.