Kalit soʻzlar:
- g‘o‘za
- NPK
- mineral o‘g‘it
- kompleks qo‘llanish
- fenologik fazalar
- sinergizm
- oziqlanish samaradorligi
Abstrak
Mazkur tadqiqotda g‘o‘za parvarishida azot (N), fosfor (P) va kaliy (K)li mineral o‘g‘itlarning bir vaqtda kompleks qo‘llanilishi tizimi o‘rganildi. Dala tajribalarida NPK o‘g‘itlarini turli miqdorlarda (N150P105K75; N250P175K125; N350P245K175) va fenologik fazalarga muvofiq taqsimlash orqali ildiz rivojlanishi, fotosintez faoliyati va generativ organlar shakllanishi tahlil qilindi. Natijalar kompleks NPK qo‘llash elementlar o‘rtasidagi sinergiyani (integral o‘g‘itlash effekti) ta’minlab, azot, fosfor va kaliyning o‘zlashtirilishini sezilarli darajada oshirishini ko‘rsatdi. Shu bilan birga, ekish va shonalash fazalarida teng balansda qo‘llanilgan NPK o‘z vaqtida va uzluksiz oziqa muhitini yaratishi, mineral o‘g‘itlarning samaradorligini oshirishi to‘g‘risidagi ma’lumotlar keltirildi. Tadqiqot natijalari respublika sharoitida sug‘oriladigan tipik bo‘z tuproq sharoitida g‘o‘zaning oziqlanish tizimini maqbullashtirish uchun ilmiy asoslangan yondashuv sifatida qo‘llanilishi mumkinligini tasdiqlaydi.
Adabiyotlar
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