books net primary production
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# primary production
# total primary production
# Preliminary Production Planning Institute
# Initial production for a field
# net production
# net biome production
# net production ecosystem
# Initial production stage
# What is the first country in the production of silver?
# net reproduction rate
# net primary productivity
# Production and production factors
# What is meant by production?
# What are the factors of production?
# Production processes in production engineering
# Production and production operations management
# What are the factors affecting production?
# Production programs in production and operations management
# Production and production report
# Raw materials production sectors
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صافي الإنتاج الاولي (Info)
صافي الإنتاج الاولي:- يساوي صافي الإنتاج الاولي إجمالي الإنتاج الاولي مطروحأ منه الكربون المفقود بنتيجة التنفس الذاتي التغذية، أي مجموع عمليات الأيض والإتزان لنمو النبتة ضمن المنطقة ذاتها (مسرد المصطلحات)
