Dos yog cov qoob loo tseem ceeb thoob ntiaj teb, siv ntau yam tais diav thiab zaub mov. Yuav kom ua tiav cov txiaj ntsig siab tshaj plaws, cov neeg ua liaj ua teb thiab cov neeg cog qoob loo yuav tsum xyuas kom meej tias lawv cov dos cog tau txais tag nrho cov as-ham tsim nyog, suav nrog phosphorus. Kab lus no yuav tshawb txog lub luag haujlwm ntawm phosphorus fertilization hauv dos ntau lawm thiab nws cov teebmeem ntawm cov nroj tsuag loj hlob thiab tawm los.
Phosphorus yog ib qho tseem ceeb macronutrient uas cov dos xav tau kom txaus rau kev loj hlob thiab kev loj hlob. Cov kev tshawb fawb tau pom tias phosphorus fertilization tuaj yeem ua rau cov qoob loo nce ntxiv, tshwj xeeb tshaj yog nyob rau thaj chaw uas tsis muaj av phosphorus. Raws li kev tshawb fawb los ntawm University of California, Davis, qhov zoo tshaj plaws ntawm phosphorus rau dos ntau lawm yog nyob ib ncig ntawm 150 lbs / acre.
Ib qho laj thawj vim li cas phosphorus tseem ceeb heev rau kev tsim cov dos yog tias nws ua lub luag haujlwm tseem ceeb hauv kev loj hlob hauv paus. Ib txoj kev tshawb fawb luam tawm nyob rau hauv Phau Tsom Faj Txog Kev Noj Qab Haus Huv thiab Av Kev Tshawb Fawb pom tias phosphorus fertilization txhim kho cov hauv paus kev loj hlob thiab kev loj hlob hauv cov dos nroj tsuag, ua rau muaj kev noj zaub mov ntau ntxiv thiab nqus dej.
Tsis tas li ntawd, phosphorus yog qhov tsim nyog rau kev tsim cov noob kom zoo, uas thaum kawg cuam tshuam rau dos tawm los. Kev tshawb fawb tshawb fawb los ntawm University of Arizona qhia tias phosphorus fertilization nce dos noob loj thiab hnyav txog li 50%. Txoj kev tshawb no kuj pom tau tias phosphorus fertilization txhim kho tag nrho cov zoo ntawm cov dos, ua rau cov nqi lag luam ntau dua.
Hauv kev xaus, phosphorus fertilization yog qhov tseem ceeb rau kev tsim cov dos. Tsim nyog phosphorus theem nyob rau hauv cov av ua kom pom kev loj hlob hauv paus, tsim teeb, thiab siab yields. Cov neeg ua liaj ua teb thiab cov neeg cog qoob loo yuav tsum xav txog phosphorus fertilization ua ib feem ntawm lawv cov dos kev tswj cov qoob loo kom ua kom lawv cov qoob loo ntau tshaj plaws thiab tau txais txiaj ntsig.
Tags: #onionproduction #phosphorusfertilization #cropmanagement #soilhealth #plantnutrition