Cum poate fi diagnosticat\u0103 deficien\u021ba de azot la plante?<\/h2>\n
Nu ar trebui s\u0103 fie surprinz\u0103tor s\u0103 afl\u0103m c\u0103 primele semne ale deficien\u021bei la plante sunt adesea indicii ale unei st\u0103ri precare de s\u0103n\u0103tate. Urm\u0103toarea este o list\u0103 cu cele mai tipice simptome vizuale care sunt asociate cu un aport inadecvat de azot:<\/p>\n
- \n
- Frunzele inferioare sunt galbene, \u00een timp ce cele superioare ale plantei au o nuan\u021b\u0103 mai deschis\u0103 de verde.<\/li>\n
- L\u0103stari sau ramuri slab dezvoltate.<\/li>\n
- Este posibil s\u0103 pute\u021bi distinge modele violet pe tulpinile unor tipuri de plante.<\/li>\n
- Frunzele se vor rumeni \u00een cele din urm\u0103, se vor ofili \u0219i vor c\u0103dea pe m\u0103sur\u0103 ce procesul de \u00eemb\u0103tr\u00e2nire continu\u0103.<\/li>\n
- Va exista o sc\u0103dere a \u00eenfloririi \u0219i a fructelor.<\/li>\n
- \u00cent\u00e2rzierea cre\u0219terii plantelor.<\/li>\n
- \u00cencetinirea produc\u021biei de frunze noi.<\/li>\n
- Dac\u0103 aceast\u0103 penurie va continua, va afecta semnificativ produc\u021bia agricol\u0103.<\/li>\n<\/ul>\n
![\"""Cum\"](\"https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2022\/06\/65.3-min.jpg?resize=810%2C439&ssl=1\")
<\/p>\nTotu\u0219i, \u00eenainte de a trata deficitul de azot la plante, este esen\u021bial s\u0103 se \u021bin\u0103 cont de faptul c\u0103 semnele vizuale ale multor alte deficien\u021be de nutrien\u021bi sunt similare.<\/p>\n
Cum se poate remedia deficitul de azot la plante \u0219i sol?<\/h2>\n
Deficitul de azot poate avea efecte negative asupra cre\u0219terii \u0219i productivit\u0103\u021bii plantelor, dar cu strategiile potrivite, acesta poate fi abordat eficient.<\/p>\n
Prin implementarea unei abord\u0103ri cuprinz\u0103toare care include testarea solului, \u00eencorporarea materiei organice, fertilizarea echilibrat\u0103, culturile de acoperire leguminoase, hr\u0103nirea foliar\u0103 \u0219i rota\u021bia culturilor, gr\u0103dinarii \u0219i fermierii pot remedia cu succes deficien\u021ba de azot la plante.<\/p>\n
1. Testarea solului:<\/strong> \u00cenainte de a implementa orice m\u0103suri corective, este esen\u021bial s\u0103 se efectueze un test al solului pentru a evalua nivelurile de nutrien\u021bi, inclusiv azotul. Testarea solului ofer\u0103 informa\u021bii valoroase despre compozi\u021bia actual\u0103 a nutrien\u021bilor \u0219i permite ajust\u0103rile adecvate.<\/p>\n
2. Materie organic\u0103 \u0219i compost<\/strong>Incorporarea materiei organice \u00een sol este o solu\u021bie eficient\u0103 pe termen lung pentru deficitul de azot. Materiile organice, cum ar fi compostul, gunoiul de grajd \u0219i culturile de acoperire, con\u021bin azot sub forme organice care se elibereaz\u0103 treptat \u00een sol, oferind o surs\u0103 sus\u021binut\u0103 de nutrien\u021bi.<\/p>\n
3. Fertilizare echilibrat\u0103<\/strong>Aplicarea \u00eengr\u0103\u0219\u0103mintelor bogate \u00een azot poate rectifica rapid deficien\u021ba de azot. Cu toate acestea, este esen\u021bial s\u0103 se g\u0103seasc\u0103 un echilibru \u0219i s\u0103 se evite suprafertilizarea, deoarece excesul de azot poate duce la poluarea mediului \u0219i la dezechilibre \u00een cre\u0219terea plantelor. Consulta\u021bi un profesionist sau consulta\u021bi recomand\u0103rile privind testele de sol pentru a determina cantitatea adecvat\u0103 de \u00eengr\u0103\u0219\u0103m\u00e2nt cu azot necesar\u0103.<\/p>\n
4. Culturi de acoperire leguminoase<\/strong>Introducerea culturilor de acoperire leguminoase, cum ar fi trifoiul sau lucerna, \u00een rota\u021bie poate \u00eembun\u0103t\u0103\u021bi disponibilitatea azotului \u00een sol. Leguminoasele au o capacitate unic\u0103 de a forma rela\u021bii simbiotice cu bacteriile fixatoare de azot, transform\u00e2nd azotul atmosferic \u00eentr-o form\u0103 utilizabil\u0103 de plante.<\/p>\n
5. Hr\u0103nire foliar\u0103<\/strong>\u00cen cazurile \u00een care este necesar\u0103 o ac\u021biune imediat\u0103, pulveriz\u0103rile foliare pot oferi o solu\u021bie temporar\u0103 pentru plantele cu deficit de azot. \u00cengr\u0103\u0219\u0103mintele bogate \u00een azot sub form\u0103 lichid\u0103 pot fi aplicate direct pe frunze, permi\u021b\u00e2nd o absorb\u021bie rapid\u0103 \u0219i abord\u00e2nd deficien\u021ba pe termen scurt.<\/p>\n
6. Rota\u021bia culturilor<\/strong>Rota\u021bia culturilor care necesit\u0103 azot cu plante fixatoare de azot sau culturi de acoperire poate ajuta la men\u021binerea fertilit\u0103\u021bii solului \u0219i la minimizarea apari\u021biei deficitului de azot. Aceast\u0103 practic\u0103 previne epuizarea nutrien\u021bilor prin diversificarea speciilor de plante \u0219i a cerin\u021belor acestora \u00een nutrien\u021bi.<\/p>\n
Azot cu rat\u0103 variabil\u0103 (VRN): Cum func\u021bioneaz\u0103?<\/h2>\n
Starea azotului din culturile dintr-un c\u00e2mp poate fi reflectat\u0103 cu precizie prin aplicarea \u00eengr\u0103\u0219\u0103mintelor datorit\u0103 progreselor tehnologice \u00een teledetec\u021bie. Aceasta direc\u021bioneaz\u0103 aplicatorul, echipat cu GPS, s\u0103 aplice cantitatea corect\u0103 de \u00eengr\u0103\u0219\u0103m\u00e2nt \u00een cea mai bun\u0103 doz\u0103 posibil\u0103, pe m\u0103sur\u0103 ce acesta se deplaseaz\u0103 pe c\u00e2mp.<\/p>\n
Pe distribuitorul de \u00eengr\u0103\u0219\u0103minte exist\u0103 senzori care monitorizeaz\u0103 reflexia luminii culturii la diferite lungimi de und\u0103, semnificative pentru concentra\u021bia de clorofil\u0103 \u0219i biomasa culturii. Fiecare dintre ace\u0219ti senzori are propria surs\u0103 de lumin\u0103, ceea ce le permite s\u0103 func\u021bioneze independent de mediul luminos din jur.<\/p>\n
![\"Azot](\"https:\/\/i0.wp.com\/geopard.tech\/wp-content\/uploads\/2022\/06\/65.2-min.jpg?resize=810%2C439&ssl=1\")
<\/p>\nNecesarul de azot este calculat pe un computer \u00een fiecare secund\u0103, folosind algoritmi crea\u021bi din datele colectate \u00een timpul testelor pe teren. Aceste informa\u021bii sunt apoi trimise c\u0103tre un aplicator sau pulverizator cu rat\u0103 variabil\u0103, care ajusteaz\u0103 prompt rata de aplicare a \u00eengr\u0103\u0219\u0103m\u00e2ntului pe teren.<\/p>\n
Beneficiile VRN<\/h2>\n
Iat\u0103 c\u00e2teva beneficii considerabile ale azotului cu rat\u0103 variabil\u0103 (VRN):<\/p>\n
- \n
- O cre\u0219tere a randamentului general de 4,65% \u00een medie.<\/li>\n
- Direc\u021bionarea eficient\u0103 a inputurilor.<\/li>\n
- Men\u021binerea \u0219i chiar cre\u0219terea nivelului de proteine din cereale.<\/li>\n
- Coroan\u0103 vegetal\u0103 mai uniform\u0103.<\/li>\n
- \u0218anse reduse de a te \u00eemboln\u0103vi din cauza caz\u0103rii sau a bolii.<\/li>\n
- Cre\u0219teri ale eficien\u021bei \u00een utilizarea azotului (eficien\u021ba utiliz\u0103rii azotului: NUE<\/a>).<\/li>\n<\/ul>\n
Ce sunt h\u0103r\u021bile \u00eengr\u0103\u0219\u0103mintelor cu azot?<\/h2>\n
Este posibil\u0103 fertilizarea cu doz\u0103 variabil\u0103 datorit\u0103 h\u0103r\u021bilor de prescrip\u021bie. Aceasta permite optimizarea dozajului de \u00eengr\u0103\u0219\u0103m\u00e2nt prin corelarea cantit\u0103\u021bii adecvate cu fiecare sec\u021biune de c\u00e2mp. Este un punct crucial atunci c\u00e2nd se discut\u0103 despre utilizarea \u00eengr\u0103\u0219\u0103mintelor cu azot la cereale.<\/p>\n
O deficien\u021b\u0103 de azot pentru plante duce la o sc\u0103dere a produc\u021biei \u0219i a calit\u0103\u021bii, \u00een timp ce o cantitate excesiv\u0103 reprezint\u0103 o problem\u0103 pentru mediu \u0219i adaug\u0103 cheltuieli suplimentare opera\u021biunilor agricole.<\/p>\n
Exist\u0103 trei etape implicate \u00een construirea h\u0103r\u021bilor de prescrip\u021bie medical\u0103:<\/p>\n
- \n
- Identificarea por\u021biunilor de c\u00e2mp care sunt consistente \u00een ceea ce prive\u0219te dozajul de azot.<\/li>\n
- Alegerea metodei de fertilizare.<\/li>\n
- Determinarea cantit\u0103\u021bii adecvate de \u00eengr\u0103\u0219\u0103m\u00e2nt cu azot pentru plante, care trebuie aplicat\u0103 \u00een fiecare sec\u021biune de c\u00e2mp.<\/li>\n<\/ol>\n
Cum se calculeaz\u0103 azotul pentru plante \u00eentr-un sac de \u00eengr\u0103\u0219\u0103m\u00e2nt?<\/h2>\n
Nu v\u0103 l\u0103sa\u021bi indu\u0219i \u00een eroare de cifra colosal\u0103 a azotului afi\u0219at\u0103 pe punga de \u00eengr\u0103\u0219\u0103m\u00e2nt; acesta este num\u0103rul care apare primul \u00een analiza NPK. Calculul total de azot dintr-un pachet de \u00eengr\u0103\u0219\u0103m\u00e2nt poate fi efectuat prin estimarea cantit\u0103\u021bii de kilograme de azot la o mie de metri p\u0103tra\u021bi.<\/p>\n
\u00cenmul\u021birea greut\u0103\u021bii sacului de \u00eengr\u0103\u0219\u0103m\u00e2nt cu procentul de azot con\u021binut \u00een \u00eengr\u0103\u0219\u0103m\u00e2nt (prima cifr\u0103 din sigla NPK care se g\u0103se\u0219te pe partea din fa\u021b\u0103 a sacului) v\u0103 va permite s\u0103 ob\u021bine\u021bi kilogramele de azot con\u021binute \u00een \u00eenc\u0103rc\u0103tur\u0103, \u00een livre. Dup\u0103 aceea, \u00eemp\u0103r\u021bi\u021bi num\u0103rul total de livre de azot la suprafa\u021ba declarat\u0103 de pe sac.<\/p>\n
Va servi la ob\u021binerea num\u0103rului de kilograme de azot pentru plante, care vor fi necesare la 1.000 de metri p\u0103tra\u021bi. Re\u021bine\u021bi c\u0103 \u00eengr\u0103\u0219\u0103m\u00e2ntul este adesea v\u00e2ndut \u00een saci care m\u0103soar\u0103 5.000 sau 10.000 de metri p\u0103tra\u021bi.<\/p>\n
Solicita\u021bi ajutor pentru platformele agricole<\/h2>\n
Este mult mai simplu s\u0103 solici\u021bi asisten\u021b\u0103 de la platforme agricole precum GeoPard. Motivul este c\u0103 acestea ofer\u0103 o varietate de solu\u021bii, care pot include, dar nu se limiteaz\u0103 la urm\u0103toarele:<\/p>\n
- \n
- Stabilirea zonelor de gestionare \u0219i elaborarea prescrip\u021biilor \u0219i h\u0103r\u021bi de aplicare a ratei variabile<\/a> v\u0103 poate ajuta s\u0103 localiza\u021bi \u0219i s\u0103 controla\u021bi punctele problematice din ferma dumneavoastr\u0103.<\/li>\n
- Analize ale datelor despre sol (analiza datelor despre sol<\/a>) pentru a crea h\u0103r\u021bi de prescrip\u021bie pentru fertilizarea agricol\u0103 cu doz\u0103 variabil\u0103 \u0219i pentru a ob\u021bine h\u0103r\u021bi complete ale atributelor solului.<\/li>\n
- Date de randament<\/a> poate fi utilizat\u0103 pentru a face alegeri mai bine informate \u0219i pentru a cre\u0219te eficien\u021ba.<\/li>\n<\/ul>\n
\n\u00centreb\u0103ri frecvente<\/h2>\n
\n1. Cum se produce o lips\u0103 de azot \u00een sol?<\/strong><\/p>\n
O lips\u0103 de azot \u00een sol poate ap\u0103rea din cauza unor factori naturali precum levigarea \u0219i volatilizarea, practicile dezechilibrate de fertilizare, absorb\u021bia culturilor \u0219i con\u021binutul sc\u0103zut de materie organic\u0103. Este crucial s\u0103 se abordeze aceast\u0103 deficien\u021b\u0103 prin fertilizare adecvat\u0103, \u00eencorporarea materiei organice \u0219i practici agricole durabile pentru a asigura o cre\u0219tere \u0219i o productivitate optim\u0103 a plantelor.<\/p>\n
2. Cum se calculeaz\u0103 azotul din \u00eengr\u0103\u0219\u0103m\u00e2nt?<\/strong><\/p>\n
Pentru a calcula cantitatea de azot din \u00eengr\u0103\u0219\u0103m\u00e2nt:<\/p>\n
- \n
- Verifica\u021bi eticheta \u00eengr\u0103\u0219\u0103m\u00e2ntului pentru con\u021binutul de azot, reprezentat de cele trei numere din raportul NPK. De exemplu, dac\u0103 raportul este 10-10-10, \u00eenseamn\u0103 c\u0103 \u00eengr\u0103\u0219\u0103m\u00e2ntul con\u021bine azot 10%.<\/li>\n
- Determina\u021bi greutatea \u00eengr\u0103\u0219\u0103m\u00e2ntului pe care inten\u021biona\u021bi s\u0103 \u00eel utiliza\u021bi. De exemplu, dac\u0103 ave\u021bi 1 kilogram de \u00eengr\u0103\u0219\u0103m\u00e2nt, 10\u00b9\u2074T din acesta (0,1 kilograme) reprezint\u0103 azot.<\/li>\n
- Converti\u021bi greutatea azotului \u00eentr-o unitate mai utilizat\u0103 \u00een mod obi\u0219nuit, cum ar fi gramele. \u00cen acest caz, 0,1 kilograme sunt egale cu 100 de grame de azot.<\/li>\n
- Folose\u0219te cantitatea calculat\u0103 pentru a determina rata de aplicare adecvat\u0103 \u00een func\u021bie de nevoile specifice ale plantelor tale, lu\u00e2nd \u00een considerare factori precum condi\u021biile solului \u0219i cre\u0219terea dorit\u0103.<\/li>\n<\/ul>\n
3. Cum ob\u021bin plantele azot? Cum le ajut\u0103 acesta \u0219i cum s\u0103 \u00eel produc\u0103?<\/strong><\/p>\n
Plantele nu pot produce azot direct. Ele ob\u021bin azot prin absorb\u021bia azotului \u00een sol, fixarea azotului de c\u0103tre bacteriile simbiotice din leguminoase, descompunerea materiei organice \u0219i absorb\u021bia din \u00eengr\u0103\u0219\u0103minte. Aceste mecanisme furnizeaz\u0103 plantelor azotul necesar pentru cre\u0219terea \u0219i dezvoltarea lor.<\/p>\n
4. Este azotul mobil \u00een plante?<\/strong><\/p>\n
Da, azotul este mobil \u00een plante. Azotul poate fi transportat cu u\u0219urin\u021b\u0103 \u00een interiorul plantei de la \u021besuturile mai vechi la cele mai tinere prin procesul cunoscut sub numele de transloca\u021bie. Atunci c\u00e2nd azotul este deficitar \u00een anumite p\u0103r\u021bi ale plantei, acesta poate fi mobilizat din frunzele mai vechi sau din organele de stocare \u0219i redistribuit \u00een zonele \u00een care este necesar pentru cre\u0219tere \u0219i dezvoltare.<\/p>\n
Aceast\u0103 mobilitate a azotului permite alocarea eficient\u0103 a resurselor \u0219i asigur\u0103 c\u0103 plantele pot prioritiza func\u021biile esen\u021biale \u00een perioadele cu disponibilitate limitat\u0103 a azotului.<\/p>\n
5. Cum se calculeaz\u0103 randamentul la porumb?<\/strong><\/p>\n
Pentru a calcula randamentul de porumb, urma\u021bi ace\u0219ti pa\u0219i:<\/p>\n
- \n
- M\u0103sura\u021bi lungimea urechii<\/strong>M\u0103sura\u021bi lungimea unui e\u0219antion reprezentativ de \u0219tiule\u021bi de porumb de la baz\u0103 p\u00e2n\u0103 la v\u00e2rf. Face\u021bi mai multe m\u0103sur\u0103tori \u0219i calcula\u021bi lungimea medie a \u0219tiule\u021bilor.<\/li>\n
- Num\u0103r\u0103 r\u00e2nduri pe ureche<\/strong>Num\u0103r\u0103 num\u0103rul de r\u00e2nduri de pe fiecare \u0219tiulete de porumb. Din nou, num\u0103r\u0103 mai multe r\u00e2nduri \u0219i calculeaz\u0103 num\u0103rul mediu de r\u00e2nduri per \u0219tiulete.<\/li>\n
- Set de m\u0103surare a cerealelor<\/strong>Selecta\u021bi un e\u0219antion aleatoriu de spice de porumb \u0219i num\u0103ra\u021bi boabele complet dezvoltate pe r\u00e2nd. Face\u021bi acest lucru pentru mai multe spice \u0219i calcula\u021bi num\u0103rul mediu de boabe pe r\u00e2nd.<\/li>\n
- Determinarea zonei de recoltare<\/strong>M\u0103soar\u0103 suprafa\u021ba c\u00e2mpului sau a parcelei de pe care a fost recoltat porumbul.<\/li>\n<\/ul>\n
\u00cenmul\u021bi\u021bi lungimea medie a \u0219tiuletului cu num\u0103rul mediu de r\u00e2nduri pe \u0219tiulete pentru a calcula num\u0103rul de boabe pe \u0219tiulete. Apoi, \u00eenmul\u021bi\u021bi num\u0103rul mediu de boabe pe r\u00e2nd cu num\u0103rul de boabe pe \u0219tiulete pentru a ob\u021bine num\u0103rul total de boabe. \u00cen cele din urm\u0103, \u00eemp\u0103r\u021bi\u021bi num\u0103rul total de boabe la suprafa\u021ba recoltat\u0103 pentru a determina randamentul de porumb, de obicei exprimat \u00een bu\u0219eli pe acru.<\/p>","protected":false},"excerpt":{"rendered":"
Deficitul de azot la plante apare atunci c\u00e2nd acestea nu primesc o cantitate adecvat\u0103 de azot din sol sau din mediul \u00eenconjur\u0103tor. Este unul dintre...<\/p>","protected":false},"author":210157960,"featured_media":5243,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":"","_eb_attr":"","content-type":"","_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_wpcom_ai_launchpad_first_post":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"{title}\n\n{excerpt}\n\n{url}","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"_wpas_customize_per_network":false,"jetpack_post_was_ever_published":false},"categories":[1372],"tags":[1637],"class_list":["post-5241","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-plant-protection"],"acf":[],"yoast_head":"\n
Calculation of Nitrogen Deficiency Map Based On Target Yield \ud83d\udccd<\/title>\n<meta name=\"description\" content=\"It is essential to minimize nitrogen deficiency in plants and efficiently manage it since it can potentially slow growth and lower yields. \ud83d\udcca\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/geopard.tech\/ro\/blog\/ce-este-deficitul-de-azot-si-cum-se-poate-remedia-acest-deficit-la-plante\/\" \/>\n<meta property=\"og:locale\" content=\"ro_RO\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Calculation of Nitrogen Deficiency Map Based On Target Yield \ud83d\udccd\" \/>\n<meta property=\"og:description\" content=\"It is essential to minimize nitrogen deficiency in plants and efficiently manage it since it can potentially slow growth and lower yields. \ud83d\udcca\" \/>\n<meta property=\"og:url\" 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- Num\u0103r\u0103 r\u00e2nduri pe ureche<\/strong>Num\u0103r\u0103 num\u0103rul de r\u00e2nduri de pe fiecare \u0219tiulete de porumb. Din nou, num\u0103r\u0103 mai multe r\u00e2nduri \u0219i calculeaz\u0103 num\u0103rul mediu de r\u00e2nduri per \u0219tiulete.<\/li>\n
- M\u0103sura\u021bi lungimea urechii<\/strong>M\u0103sura\u021bi lungimea unui e\u0219antion reprezentativ de \u0219tiule\u021bi de porumb de la baz\u0103 p\u00e2n\u0103 la v\u00e2rf. Face\u021bi mai multe m\u0103sur\u0103tori \u0219i calcula\u021bi lungimea medie a \u0219tiule\u021bilor.<\/li>\n
- Analize ale datelor despre sol (analiza datelor despre sol<\/a>) pentru a crea h\u0103r\u021bi de prescrip\u021bie pentru fertilizarea agricol\u0103 cu doz\u0103 variabil\u0103 \u0219i pentru a ob\u021bine h\u0103r\u021bi complete ale atributelor solului.<\/li>\n
- Stabilirea zonelor de gestionare \u0219i elaborarea prescrip\u021biilor \u0219i h\u0103r\u021bi de aplicare a ratei variabile<\/a> v\u0103 poate ajuta s\u0103 localiza\u021bi \u0219i s\u0103 controla\u021bi punctele problematice din ferma dumneavoastr\u0103.<\/li>\n