Dab Tsi Yog Hnub Loj Hlob: Yuav Siv Li Cas Loj hlob Degree Hnub Hauv Lub Vaj

Cov txheej txheem:

Dab Tsi Yog Hnub Loj Hlob: Yuav Siv Li Cas Loj hlob Degree Hnub Hauv Lub Vaj
Dab Tsi Yog Hnub Loj Hlob: Yuav Siv Li Cas Loj hlob Degree Hnub Hauv Lub Vaj

Video: Dab Tsi Yog Hnub Loj Hlob: Yuav Siv Li Cas Loj hlob Degree Hnub Hauv Lub Vaj

Video: Dab Tsi Yog Hnub Loj Hlob: Yuav Siv Li Cas Loj hlob Degree Hnub Hauv Lub Vaj
Video: Koj saib kuv tsis muaj nqis - Nkauj tawm tshiab 2021-22 2024, Kaum ib hlis
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Hnub Kawm Qib Siab yog dab tsi? Loj hlob Degree Hnub (GDD), tseem hu ua Growing Degree Units (GDU), yog ib txoj hauv kev tshawb fawb thiab cov neeg cog qoob loo tuaj yeem kwv yees kev loj hlob ntawm cov nroj tsuag thiab kab thaum lub caij loj hlob. Los ntawm kev siv cov ntaub ntawv xam los ntawm huab cua kub, "cov cua kub cua sov" tuaj yeem cuam tshuam cov theem kev loj hlob ntau dua li cov txheej txheem calendar. Lub tswv yim yog tias kev loj hlob thiab kev loj hlob nce nrog huab cua kub tab sis stagnates ntawm qhov kub siab tshaj plaws. Nyeem rau kom paub ntau ntxiv txog qhov tseem ceeb ntawm GDD.

Xam Kev Loj Hlob Hnub

Kev suav pib nrog lub hauv paus kub lossis "qhov pib" nyob rau hauv uas qee yam kab lossis tsob ntoo yuav tsis loj hlob lossis loj hlob. Tom qab ntawd qhov kub thiab qis qis rau ib hnub ntxiv ua ke thiab muab faib ua 2 kom tau txais qhov nruab nrab. Qhov nruab nrab kub rho tawm qhov ntsuas kub muab qhov GDD tus nqi. Yog tias qhov tshwm sim yog tus lej tsis zoo, nws raug kaw ua 0.

Piv txwv li, lub hauv paus kub ntawm asparagus yog 40 degrees F. (4 C.). Cia peb hais rau lub Plaub Hlis 15 qhov kub qis yog 51 degrees F. (11 C.) thiab qhov kub siab yog 75 degrees F. (24 C.). Qhov nruab nrab kub yuav yog 51 ntxiv rau 75 muab faib los ntawm 2, uas sib npaug 63degrees F. (17 C.). Qhov nruab nrab rho tawm lub hauv paus ntawm 40 sib npaug 23, GDD rau hnub ntawd.

GDD tau sau tseg rau txhua hnub ntawm lub caij, pib thiab xaus nrog ib hnub tshwj xeeb, kom tau txais GDD ntau ntxiv.

Qhov tseem ceeb ntawm GDD yog cov lej no tuaj yeem pab cov kws tshawb fawb thiab cov neeg cog qoob loo kwv yees thaum kab nkag mus rau qee theem ntawm kev txhim kho thiab pab tswj. Ib yam li ntawd, rau cov qoob loo, GDD tuaj yeem pab cov neeg cog qoob loo kwv yees cov theem kev loj hlob xws li paj lossis kev loj hlob, ua rau kev sib piv raws caij nyoog, thiab lwm yam.

Yuav Ua Li Cas Loj Hlob Degree Hnub hauv Lub Vaj

Tech savvy gardeners tej zaum yuav xav tau rau hauv cov ntaub ntawv GDD no siv hauv lawv lub vaj. Software thiab technical monitors tuaj yeem yuav cov ntaub ntawv ntsuas kub thiab suav cov ntaub ntawv. Koj qhov Kev Pabcuam Cooperative Extension hauv cheeb tsam tuaj yeem faib GDD los ntawm cov ntawv xov xwm lossis lwm yam kev tshaj tawm.

Koj tuaj yeem suav koj tus kheej suav nrog siv cov ntaub ntawv huab cua los ntawm National Oceanic thiab Atmospheric Administration (NOAA), Huab cua hauv av, thiab lwm yam. Lub chaw haujlwm txuas ntxiv yuav muaj qhov ntsuas kub rau ntau yam kab thiab qoob loo.

Cov neeg ua liaj ua teb tuaj yeem kwv yees txog kev loj hlob ntawm lawv tus kheej cov khoom!

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