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کشاورزی نوین و پایدار - تیمار شوری و روش اعمال آن بر اساس روش تغییر داده شده للاند و همکاران (1994)
 
کشاورزی نوین و پایدار

 اعمال تیمار شوری، NaCl و CaCl2 به نسبت مساوی (1:1) : برای تهیه محلول 1 میلی مولار مقدار 1 مولکول گرم نمک NaCl بعلاوه 1 مولکول گرم نمک CaCl2 با آب مقطر و با استفاده از همزن مغناطیسی به حجم 1000 میلی لیتر رسانیده شد.

1 مولکول گرم     NaCl:                   Na(23)+Cl(35.5)= 58.5 

1 مولکول گرم CaCl2:                  Ca(40)+Cl2(35.5×2)= 110 

محاسبه یک مولکول گرم نمک NaCl  و CaCl2

 

مقدارنمک NaCl و CaCl2 مورد نیاز جهت تهیه محلول­های 50، ۱۰۰ و 150 میلی مولار

 

 50 میلی مولار:

گرم NaCl   1.46=1000÷58.5×25  

گرمCaCl2    2.75 = 1000÷110×25  

100میلی مولار:

          گرمNaCl 2.92=1000/58.5×50           

گرمCaCl2   5.5=1000/110×50

150 میلی مولار:

گرمNaCl      4.38 = 1000/58.5×75

گرم CaCl2    8.25=1000/110×75

البته توجه داشته باشید که اگر بخواهید تیمار شوری خود را تماماً از یک منبع نمک تهیه کنید مقادیر برای هر نمک دو برابر می شود (مثلا ۱۰۰ میلی مولار نمک طعام می شود ۵/۵۸ ضربدر ۱۰۰ عدد حاصل تقسیم بر ۱۰۰۰) .

 





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