Keywords
Abstract
Maqolada Qoraqalpog‘iston Respublikasining janubiy va shimoliy mintaqalari sharoitida kungaboqar navlarini yetishtirishda suv resurslaridan samarali foydalanish va ekinning biologik xususiyatlariga mos maqbul sug‘orish tartiblarini ishlab chiqish masalalari tahlil qilingan. Qoraqalpog‘iston sharoitida yuqori havo harorati, yog‘ingarchilikning kamligi, bug‘lanishning yuqoriligi, tuproq sho‘rlanishi va suv resurslarining cheklanganligi kungaboqar yetishtirish texnologiyasida sug‘orish rejimini ilmiy asoslashni talab etadi. Tadqiqotda kungaboqarning vegetatsiya davridagi suvga bo‘lgan talabi, rivojlanish fazalari bo‘yicha namlikka munosabati, sug‘orish muddatlari va suvdan foydalanish samaradorligini baholashning metodik asoslari yoritilgan. FAO ma’lumotlariga ko‘ra, kungaboqarning mavsumiy suv ehtiyoji umumiy hisobda taxminan 600–1000 mm ni tashkil etishi mumkin. Shu bilan birga, sug‘orishning ayniqsa gullash va urug’to‘lish davrlariga yo‘naltirilishi hosildorlikni saqlash nuqtayi nazaridan muhim hisoblanadi. Maqolada Qoraqalpog‘istonning janubiy va shimoliy mintaqalari uchun tuproq namligini rivojlanish fazalariga qarab 70–80 foiz dala nam sig‘imi darajasida boshqarishga asoslangan differensial sug‘orish modeli taklif etilgan.
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