Qhov txawv ntawm DAP thiab NPK chiv

Tus yuam sij sib txawv ntawm DAP thiab NPK Chiv yog tias DAP fertilizer tsis muajpoov tshuajWhereas lub npk fertilizer muaj poov tshuaj ib yam nkaus.

Dab tsi yog DAP chiv?

Dap chiv yog cov chaw ntawm nitrogen thiab phosphorous uas muaj kev siv dav hauv kev ua liaj ua teb. Cov khoom tiv thaiv loj hauv cov chiv no yog Diammonium phosphate uas muaj cov mis nyuj (NH4) 2. Ntxiv mus, iupac lub npe ntawm no compound yog diammonium hydrogen phosphate. Thiab nws yog dej-soluble ammonia phosphate.

Hauv cov txheej txheem ntau lawm ntawm cov chiv, peb ua rau phosphoric acid nrog ammemoric acid nrog ammulry uas yog li txias thiab sieved kom tau txais cov chiv uas peb tuaj yeem siv hauv kev ua liaj ua teb. Ntxiv mus, peb yuav tsum npaj nrog cov tshuaj tiv thaiv raws li kev tswj hwm vim tias cov tshuaj tiv thaiv siv sulfuric acid, uas yog txaus ntshai los lis. Yog li no, qib theem ntawm cov muaj qib ntawm cov chiv no yog 18-46-0. Qhov no txhais tau tias, nws muaj nitrogen thiab phosphorous nyob rau hauv qhov sib piv ntawm 18:46, tab sis nws tsis muaj potassium.

Feem ntau, peb yuav tsum tau kwv yees li 1.5 rau 2 tons ntawm cov leeg pob zeb, 0.4 tons ntawm leej faj (thiab 0.2 tons ntawm ammonia rau kev tsim cov dap. Ntxiv mus, lub pH ntawm cov khoom no yog 7.5 rau 8.0. Yog li ntawd, yog tias peb ntxiv cov chiv no rau cov av, nws tuaj yeem tsim ib qho alkaline pH ib puag ncig cov chiv ua av granules uas yaj hauv av; Yog li cov neeg siv yuav tsum zam kom tsis txhob ntxiv qhov nyiaj ntau ntawm cov chiv no.

Dab tsi yog NPK chiv?

NPK chiv yog peb feem chiv uas muaj txiaj ntsig zoo rau kev ua liaj ua teb. Cov chiv no ua cov khoom ntawm nitrogen, phosphorus thiab potassium. Yog li ntawd, nws yog qhov tseem ceeb ntawm tag nrho peb cov as-paus uas ib tsob nroj yuav tsum tau rau nws txoj kev loj hlob, kev loj hlob thiab ua haujlwm kom ua haujlwm. Lub npe ntawm cov tshuaj no tseem nthuav tawm cov khoom noj uas nws tuaj yeem muab tau.

NPK kev ntsuas yog qhov sib xyaw ua ke ntawm cov lej uas muab qhov sib piv ntawm nitrogen, phosphorous thiab poov tshuaj muab los ntawm cov chiv no. Nws yog kev sib xyaw ua ke ntawm peb tus lej, sib cais los ntawm ob lub pob. Piv txwv li, 10-10-10 feem qhia tias cov chiv muab 10% ntawm txhua tus neeg noj zaub mov. Muaj, thawj tus lej yog hais txog feem pua ​​ntawm nitrogen (n%), tus lej thib ob yog rau phosphorous percensage (nyob rau hauv cov p2o5%), thiab tus thib peb yog rau cov poov tshuaj feem pua ​​(k2o%).