{"id":39780,"date":"2026-06-27T20:33:48","date_gmt":"2026-06-27T17:33:48","guid":{"rendered":"https:\/\/sadogorodnik.top\/?p=39780"},"modified":"2026-06-27T20:33:48","modified_gmt":"2026-06-27T17:33:48","slug":"prichiny-pochemu-zhelteyut-i-sohnut-listya-ogurczov-pri-deficzite-azota","status":"publish","type":"post","link":"https:\/\/sadogorodnik.top\/uz\/prichiny-pochemu-zhelteyut-i-sohnut-listya-ogurczov-pri-deficzite-azota\/","title":{"rendered":"Nima uchun bodring barglari azot yetishmasligi tufayli sarg'ayadi va quriydi"},"content":{"rendered":"

Bodring barg pichoqlarining sarg'ayishi, jingalaklanishi va keyinchalik qurishi keng tarqalgan muammo bo'lib, o'simlikning fiziologik jarayonlaridagi buzilishlarni ko'rsatadi. Sababini erta aniqlash hosilni tejash va nekrozning o'simlik bo'ylab tarqalishini to'xtatish imkonini beradi. Dastlabki bosqichlarda alomatlarni e'tiborsiz qoldirish meva berishning sezilarli darajada kamayishiga va vegetativ massaning nobud bo'lishiga olib keladi. Mo''tadil iqlim sharoitida yuqori sifatli natijalarga erishish uchun bodringning ozuqaviy va himoya mexanizmlarini tushunish juda muhimdir.<\/p>\n

\"Bodring<\/p>\n

Sug'orish rejimini buzish<\/h2>\n

Bodring zaif ildiz tizimi tufayli suv muvozanatiga juda sezgir. Namlik yetishmaganda, hujayra turgori pasayadi, bu esa barglarning chetlarining sarg'ayishiga olib keladi, ortiqcha suv esa ildiz chirishi va nekrotik dog'larni keltirib chiqaradi. Faol o'sish uchun ideal tuproq namligi darajasi to'liq dala sig'imining 80-90% ni tashkil qiladi.<\/p>\n

Issiqxonalarda standart sug'orish miqdori har 2-3 kunda kvadrat metrga 10 litrni tashkil qiladi. Issiq havoda sug'orish hajmi oshiriladi; bulutli havoda esa ikki baravar kamayadi. Tuproqning optimal namlanish chuqurligi 10-12 sm bo'lib, bu ildizlarning qulay rivojlanishini ta'minlaydi.<\/p>\n

Muzdek sovuq suv bilan sug'orish xato hisoblanadi, chunki bu harorat shokiga olib kelishi mumkin. Agar tuproq haddan tashqari sug'orilib ketsa, sug'orishni to'xtating va aeratsiyani yaxshilash uchun tuproqning yuqori qatlamini bo'shating. 1 sm kompost qatlami bilan mulchalash namlikni barqarorlashtirishga yordam beradi va tuproqning qurib ketishidan himoya qiladi.<\/p>\n

Azot yetishmasligi<\/h2>\n

Azot yetishmasligi pastki qatlamdan boshlab butun barg poyasining bir xil rangparligi va sarg'ayishi bilan namoyon bo'ladi. Agar barg qirralari pastga egilgan bo'lsa, bu xlorofill sintezi uchun zarur bo'lgan elementning jiddiy yetishmasligini ko'rsatadi.<\/p>\n

Shoshilinch yordam uchun ammiakli selitrani 10 litr suvga 25-30 g dozada qo'llang. Eritma kvadrat metrga 1,5-2 litr miqdorida qo'llaniladi. Qattiq ochlik holatida, kechqurun zaif eritma (10 litr suvga 8-10 g) bilan bargdan ishlov berish samarali bo'ladi.<\/p>\n

Shuni yodda tutish kerakki, ortiqcha azot yetishmovchilik kabi xavflidir, chunki u meva berish hisobiga ortiqcha barglarning o'sishiga yordam beradi. Nitroammofoska (10 litr suvga 1 osh qoshiq) bilan muntazam o'g'itlash mavsum davomida tuproqdagi elementlar muvozanatini saqlashga yordam beradi.<\/p>\n

\"Azot<\/p>\n

Harorat stressi<\/h2>\n

To'satdan harorat o'zgarishi metabolizmni buzadi, bu esa barglarning nekrozi rivojlanishiga olib keladi. Issiqxonada bodring uchun optimal harorat oralig'i quyoshli kunda kunduzi 23 dan 25\u00b0C gacha, kechasi esa 19 dan 21\u00b0C gacha. Meva berish davrida issiqlikka bo'lgan ehtiyoj 1-2 darajaga oshadi.<\/p>\n

Sovuq harorat, hatto tuproqda yetarli miqdorda bo'lsa ham, ozuqa moddalarining ildizlar tomonidan so'rilishini sekinlashtiradi. Bunday sharoitda barglar sarg'ayadi va tuxumdonlar tushadi. Ochiq yerda o'simliklarni tungi sovuqdan himoya qilish uchun qoplama materialidan foydalanish mumkin.<\/p>\n

Issiqxonalarda mikroiqlim shamollatish yoki isitgichlarni o'rnatish orqali tartibga solinadi. Shamollatish paytida shamollatish qabul qilinishi mumkin emas, chunki ular mahalliy gipotermiyani keltirib chiqaradi. Sog'lom bodring toklari uchun barqaror harorat juda muhimdir.<\/p>\n

Quyosh yonishi va kondensatsiya<\/h2>\n

Bodring bargining shikastlanishi ko'pincha namlik tomchilari tufayli yuzaga keladi, ular to'g'ridan-to'g'ri quyosh nurida linzalar vazifasini bajaradi. Issiqxonalarda barglarga tushadigan kondensatsiya kuygan dog'larni ham keltirib chiqaradi, ular keyinchalik zamburug'lar bilan yuqishi mumkin.<\/p>\n

Sug'orish faqat ildizlardan amalga oshirilishi kerak, o'simlikning vegetativ qismlari bilan aloqa qilmaslik kerak. Ertalab namlikni kamaytirish va barglarda kondensatsiya paydo bo'lishining oldini olish uchun issiqxonani ventilyatsiya qiling. Bu oddiy chora quyosh yonishi xavfini sezilarli darajada kamaytiradi.<\/p>\n

Agar bodring ochiq havoda yetishtirilsa, eng issiq soatlarda yorug'lik soyasini ta'minlang. Bu o'simliklar turgorni saqlab qolishga va barg to'qimalarining qizib ketishining oldini olishga yordam beradi. Sog'lom barglar tashqi tahdidlarga yaxshiroq bardosh bera oladi.<\/p>\n

Zamburug'li kasalliklar<\/h2>\n

Kukunli chiriyotgan barglarning yuqori yuzasida oq qoplama sifatida paydo bo'ladi, bu ularning deformatsiyasiga va qurib ketishiga olib keladi. Antraknoz tez tarqaladigan sariq-jigarrang dog'lar bilan tavsiflanadi. Agar bu belgilar aniqlansa, darhol fungitsidlar bilan davolash kerak.<\/p>\n

\"Bodring<\/p>\n\n\n\n\n\n\n
Kasallik<\/td>\nTayyorgarlik<\/td>\nDozalash<\/td>\n<\/tr>\n
Kukunli chiriyotgan<\/td>\nBordo aralashmasi<\/td>\n1% yechimi<\/td>\n<\/tr>\n
Antraknoz<\/td>\nMis sulfat<\/td>\n0.5% eritmasi<\/td>\n<\/tr>\n
Mog'orlangan chiriyotgan<\/td>\nOksixoma<\/td>\n10 l uchun 20 g<\/td>\n<\/tr>\n
Zararkunandalar (kana)<\/td>\nKolloid oltingugurt<\/td>\n10 l uchun 80 g<\/td>\n<\/tr>\n<\/table>\n

Antraknozga qarshi kurashish uchun 1% Bordo suyuqligidan foydalaning, davolashni 14 kundan keyin takrorlang. Mog'orli chiriyotgan bir hafta davomida sug'orishni to'xtatishni va tizimli preparatlarni qo'llashni talab qiladi. Ekin almashlab ekishni saqlab qolish va kuzda barcha o'simlik qoldiqlarini olib tashlash muhimdir.<\/p>\n

Zararkunandalar va ildizlarning shikastlanishi<\/h2>\n

Shira va o'rgimchak oqadilar hujayra sharbatini so'rib oladi, bu esa barg chetlarining sarg'ayishiga va jingalaklanishiga olib keladi. Oqadilar barg pichog'ining pastki qismidagi ingichka to'r orqali aniqlanishi mumkin. Kolloid oltingugurt oqadilar va nitroammofoska eritmasi o'simliklarga qarshi samarali hisoblanadi.<\/p>\n

Bo'shashish yoki begona o'tlarni yo'qotish natijasida ildizlarning shikastlanishi o'simlikning oziqlanish qobiliyatini sezilarli darajada pasaytiradi. Agar mexanik ildiz shikastlanishi yuzaga kelsa, bodring ammiakli selitra (litrga 5-7 g) bilan oziqlanadi va ozgina tuproqqa sepiladi. Bu qo'shimcha ildizlarning shakllanishiga yordam beradi.<\/p>\n

\"Shira<\/p>\n

    \n
  • Juda zich ekmang: bu soyaga va kasalliklarning rivojlanishiga olib keladi.<\/li>\n
  • Qadimgi pastki barglarni olib tashlang: ular hech qanday foyda keltirmasdan ozuqa moddalarini olib ketadi.<\/li>\n
  • Mal\u00e7dan foydalaning: u ildizlarni qizib ketishdan va qurib ketishdan himoya qiladi.<\/li>\n
  • O'g'itlarning dozasini kuzating: ortiqcha tuzlar ildizlarga zararli.<\/li>\n
  • Barglarning pastki qismini zararkunandalar uchun muntazam ravishda tekshirib turing.<\/li>\n<\/ul>\n

    Tez-tez so'raladigan savollar: Savollarga javoblar<\/h2>\n

    Nima uchun faqat pastki barglar sarg'ayadi?<\/h3>\n

    Ko'pincha, bu tabiiy qarish jarayoni yoki zich barglar tufayli yorug'likning yo'qligi bilan bog'liq. Agar dog'lar o'ziga xos ko'rinishga ega bo'lsa, kaliy yoki magniy yetishmasligini tekshiring.<\/p>\n

    Himoya qilish uchun pishirish sodasidan foydalanish mumkinmi?<\/h3>\n

    Ha, pishirish soda eritmasi (10 litr suvga 1 osh qoshiq) ko'plab zamburug'lar uchun zararli bo'lgan ishqoriy muhitni yaratadi. Bu kukunli chiriyotganga qarshi ajoyib profilaktika vositasidir.<\/p>\n

    Sut kasalliklarga qarshi yordam beradimi?<\/h3>\n

    Sut, sovun va yod aralashmasi barglarda himoya plyonka hosil qiladi va o'simliklarni mikroelementlar bilan oziqlantiradi. Bu muntazam davolash uchun xavfsiz xalq davosi.<\/p>\n

    \"Bodringning\"Oziqlanishning<\/p>","protected":false},"excerpt":{"rendered":"

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