Ntsiab Cai ntawm Phosphate Fertilizer Application

Kev ua tau zoo ntawm phosphate fertilizer tsis tsuas yog nyob ntawm nws cov tshuaj muaj pes tsawg leeg, tab sis kuj nyob ntawm txoj kev siv. Lub hauv paus ntsiab lus tseem ceeb yog txo cov tshuaj kho ntawm phosphorus hauv cov av thiab nce nws txoj hauv kev sib cuag nrog cov hauv paus qoob loo.

Kev kov yeej qhov teeb meem ntawm phosphorus "fixation": Cov phosphate ions (PO₄³⁻) hauv phosphate chiv yooj yim ua ke nrog cov hlau ions hauv cov av xws li calcium, magnesium, hlau, thiab txhuas los tsim cov phosphate compounds (piv txwv li, calcium phosphate, aluminium phosphate). Cov "tsis muaj phosphorus" cov tebchaw no tsis tuaj yeem nqus los ntawm cov qoob loo.

Cov txheej txheem siv scientific los txhim kho kev siv:
Kev sib sib zog nqus daim ntawv thov (hauv paus chiv): Siv phosphate chiv rau lub plow txheej uas cov qoob loo cov hauv paus hniav yog ntom (feem ntau yog 10-20 centimeters tob) es tsis tshaj tawm rau saum npoo. Qhov no ua rau luv qhov sib txawv ntawm phosphorus mus rau cov hauv paus hniav thiab txo lub sijhawm rau kev sib cuag nrog cov ions ruaj hauv cov av.

Ua ke daim ntawv thov nrog organic chiv: Organic chiv tsim cov organic acids (xws li humic acid thiab citric acid) thaum lub sij hawm decomposition, uas tuaj yeem tsim cov complexes ruaj khov nrog ions xws li calcium, hlau, thiab txhuas hauv cov av, yog li "tso" phosphorus ruaj khov thiab tsim "humus{0}}phosphorus" complex uas maj mam tso cov as-ham, txhim kho kev ua haujlwm zoo.

Foliar fertilization (foliar spray): Thaum lub sij hawm nruab nrab thiab lig ntawm cov qoob loo loj hlob, thaum cov av fixation loj heev los yog cov qoob loo pom cov tsos mob ntawm phosphorus deficiency (xws li nplooj liab doog), kev daws ntawm monopotassium phosphate tuaj yeem txau. Phosphorus tuaj yeem nqus tau ncaj qha los ntawm nplooj, muab cov nyhuv nrawm thiab ua haujlwm zoo li phosphorus supplementation method.

Noob fertilization lossis noob soaking: Rau cov noob me me, phosphate chiv tuaj yeem tov nrog cov noob; Rau cov noob loj, cov tshuaj monopotassium phosphate tuaj yeem siv rau cov noob soaking. Qhov no ua kom cov noob tuaj rau hauv kev sib cuag nrog phosphorus thaum lub sij hawm germination, txhawb nqa thaum ntxov thiab muaj zog seedling tshwm sim.

Hauv cov ntsiab lus, txoj hauv kev ua haujlwm ntawm phosphate chiv yog tswj cov qoob loo physiological metabolism los ntawm kev muab phosphorus. Kev siv tau zoo vam khom rau cov tswv yim kev tsim fertilization, nrog rau cov tub ntxhais yog "sib sib zog nqus daim ntawv thov, concentration, thiab combining nrog organic chiv" kom kov yeej av phosphorus fixation.