Mustaqil tayyorlanish uchun savollar: Donli ekinlarning qora kuya kasalliklarini tarifini ayting.(Kasallik
qo‘zg‘ozatuvchisining qishlashi, yuqish, tarqalish, zararlash usullari, simptomlari)
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Bug‘doyning qattiq qora kuya kasalligi bilan tanishing.
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Zararlangan dondagi o‘zgarishlarni tariflang zararlangan donni maydalab aynan
shunday maydalangan don massasi bilan taqqoslang, massa kamayish sabablarini
asoslang.
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Chang va qattiq qora kuya donini hidiga ko‘ra farqli xususiyatlarini tariflang.
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Bug‘doy qattiq qora kuyasiga qarshi kurashishda qo’llanilishi lozim bo‘lgan
tavsiyangizni bering.
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