{"id":19136,"date":"2023-06-16T08:29:12","date_gmt":"2023-06-16T08:29:12","guid":{"rendered":"https:\/\/sygeplanter.dk\/?p=19136"},"modified":"2023-06-16T08:29:13","modified_gmt":"2023-06-16T08:29:13","slug":"kartofler-i-drivhuset-pa-varm-luft-lidt-malinger","status":"publish","type":"post","link":"https:\/\/sygeplanter.dk\/kartofler-i-drivhuset-pa-varm-luft-lidt-malinger\/","title":{"rendered":"Kartofler i drivhuset p\u00e5 varm luft \u2013 lidt m\u00e5linger"},"content":{"rendered":"\n

Jeg har et bed kartofler i drivhuset med en slange i bunden, hvor der bl\u00e6ses varm luft fra en solfanger i toppen af drivhuset \u2013 styret af en minicomputer.
Slutningen af marts har v\u00e6re us\u00e6dvanlig kold, og med meget lidt sol, s\u00e5 kartoflerne er tydeligt bagud i forhold til de foreg\u00e5ende \u00e5r.<\/p>\n\n\n\n

Men, der gives da solskinsdage, og kurverne herunder er fra den 30. marts 2018:<\/p>\n\n\n\n

Den nederste, gule kurve, er temperaturen i bunden af beddet. Om morgenen var den nede p\u00e5 5,06 grader, efter nogle kolde gr\u00e5vejrsdage, og om aftenen var den oppe p\u00e5 12,13 grader.
Lufttemperaturen, den gr\u00f8nne, er allerede om morgenen oppe p\u00e5 12,56 grader, for der er kraft i solen. Fra lidt i 11 til kl 4 stod d\u00f8ren \u00e5ben, derfor kommer lufttemperaturen ikke h\u00f8jere op.
Den bl\u00e5 kurve, Jordind, er temperaturen p\u00e5 den luft, der bl\u00e6ses gennem slangerne i beddet, og den r\u00f8de kurve, Jordud, er temperaturen, n\u00e5r luften har opvarmet beddet. Forskellen mellem den bl\u00e5 og den gr\u00f8nne, ca. 5 grader, er opvarmningen fra solfangeren.
I et tilsvarende bed, uden luftvarme, var temperaturen sidst p\u00e5 dagen 7,00 grader.<\/p>\n\n\n\n

N\u00e6ste morgen var det frost, og temperaturen i kartoffelbeddet var 7,15 grader.<\/p>\n\n\n\n

Den f\u00f8lgende morgen, 1. april, v\u00e5gnede vi op til 12 cm sne, frost og kraftigt snevejr. Midt p\u00e5 dagen holdet det op med at sne, det var stadig overskyet, men meget skarpt lys. Temperaturen i drivhuset steg til 14 grader, og bl\u00e6seren gik igang. I l\u00f8bet af en times tid steg temperaturen i beddet fra 6,13 til 7,13 grader.<\/p>\n\n\n\n

Marts m\u00e5ned havde halvt s\u00e5 mange solskinstimer som normalt, og det kan tydeligt ses. Det er dog en klar fordel at have varmelagringen baseret p\u00e5 luft i stedet for vand i slangerne, det er det lettere at arbejde med, og kan bedre udnytte en times solskin.<\/p>\n","protected":false},"excerpt":{"rendered":"

Jeg har et bed kartofler i drivhuset med en slange i bunden, hvor der bl\u00e6ses varm luft fra en solfanger i toppen af drivhuset \u2013 styret af en minicomputer.Slutningen af marts har v\u00e6re us\u00e6dvanlig kold, og med meget lidt sol, s\u00e5 kartoflerne er tydeligt bagud i forhold til de foreg\u00e5ende \u00e5r. Men, der gives da … <\/p>\n

Read more<\/a><\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10,12],"tags":[],"yoast_head":"\nKartofler i drivhuset p\u00e5 varm luft \u2013 lidt m\u00e5linger - Sygeplanter<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/sygeplanter.dk\/kartofler-i-drivhuset-pa-varm-luft-lidt-malinger\/\" \/>\n<meta property=\"og:locale\" content=\"da_DK\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Kartofler i drivhuset p\u00e5 varm luft \u2013 lidt m\u00e5linger - Sygeplanter\" \/>\n<meta property=\"og:description\" content=\"Jeg har et bed kartofler i drivhuset med en slange i bunden, hvor der bl\u00e6ses varm luft fra en solfanger i toppen af drivhuset \u2013 styret af en minicomputer.Slutningen af marts har v\u00e6re us\u00e6dvanlig kold, og med meget lidt sol, s\u00e5 kartoflerne er tydeligt bagud i forhold til de foreg\u00e5ende \u00e5r. 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