O‘ZBEKISTON ZAMINI
4/2019
28
Foydalanilgan adabiyotlar ro
‘
yxati
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bo‘lgan gidromorf tuproqlar sharoitida g‘o‘zaning
ilmiy asoslangan sug‘orish tartiblari ishlab chiqildi.
3.
IX
gidromodul
rayondagi
1-tajribada g‘o‘zani sug‘orishda tuproqning
sug‘orishdan oldingi namligi CHDNS ga
nisbatan 70-80-60% bo‘lgan 3-variantda g‘o‘za
0-3-0 sxema bo‘yicha gullash-hosilga kirish davrida
uch marotaba 729-760 m3/ga sug‘orish me’yorlari
bilan sug‘orildi. Mavsumiy sug‘orish me’yori 2234
m3/ga ni tashkil qildi yoki nazoratga nisbatan 1632
m3/ga suv kam sarflanib, eng yuqori g‘o‘za hosili
olindi.
4. VII gidromodul rayondagi 2-tajribada
g‘o‘zani sug‘orishda tuproqning sug‘orishdan
oldingi
namligi
CHDNS
ga
nisbatan
70-80-60% bo‘lgan 3-variantda g‘o‘za unib-
chiqish gullash davrida 620 m3/ga sug‘orish meyori
bilan bir marotaba sug‘orildi, gullash-ko‘sak tugush
davrida 590-609 m3/ga sug‘orish meyorlari bilan
g‘o‘za to‘rt marotaba sug‘orildi va va pishish
davrida 742 m3/ga sug‘orish meyori bilan bir
marotaba sug‘orildi. Mavsumiy sug‘orish meyori
3756 m3/ga ni tashkil qildi yoki nazorat variantiga
nisbatan 1466 m3/ga daryo suvi iqtisod qilinib,
g‘o‘zadan yuqori hosil olindi.
5. 1-tajriba dalasida g‘o‘za sug‘orishda
tuproqning sug‘orishdan oldingi namligi CHDNS
ga nisbatan 70-80-60% bo‘lgan 3-variantda
g‘o‘zadan yuqori – 40,3 s/ga hosil olindi. Bu
nazorat variantiga nisbatan 4,1 s/ga ko‘p bo‘lib,
1 sentner paxta yetishtirish uchun eng kam:
55.4 m3 daryo suvi sarflandi.
6. 2-tajriba dalasida g‘o‘za sug‘orishda
tuproqning sug‘orishdan oldingi namligini CHDNS
ga nisbatan 70-80-60% da ushlab turish natijasida
hosildorlik 35,5 s/ga, ya’ni nazoratga nisbatan
3,9 s/ga ko‘p va 1 sentner paxta yetishtirish uchun
eng kam: 105.8 m3 daryo suvi sarflandi.
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