خيارات البحث
النتائج 1 - 3 من 3
CO₂ emissions from farm inputs “Case study of wheat production in Canterbury, New Zealand”
2012
Safa, Majeed | Samarasinghe, Sandhya
This review paper concentrates on carbon dioxide emissions, discussing its agricultural sources and the possibilities for minimizing emissions from these sources in wheat production in Canterbury, New Zealand. This study was conducted over 35,300 ha of irrigated and dryland wheat fields in Canterbury. Total CO₂ emissions were 1032 kg CO₂/ha in wheat production. Around 52% of the total CO₂ emissions were released from fertilizer use and around 20% were released from fuel used in wheat production. Nitrogen fertilizers were responsible for 48% (499 kg CO₂/ha) of CO₂ emissions. The link between nitrogen consumption, CO₂ emissions and crop production showed that reducing the CO₂ emissions would decrease crop production and net financial benefits to farmers.
اظهر المزيد [+] اقل [-]Environmental and economic impacts of better cotton: a panel data analysis
2019
Zulfiquar, Sundas | Yasin, Muhammad Asim | Khuda Bakhsh, | Ali, Rafaqet | Samiullah, | Munir, Saad
Better cotton is introduced with the aim of a reduction in the use of environmentally detrimental farm inputs in order to attain sustainable cotton production. The present study is designed to assess the environmental and economic effects of better cotton in Pakistan using panel data comprising of two cropping seasons, 2015 and 2016. Panel methods were used in the present study. Findings show that better cotton increases the gross margin by 37% and yield by 9%, whereas it results in decreasing seed rate by 6%, fertilizers by 7%, pesticides by 7%, and irrigation by 14%. Since better cotton involves more labor use due to higher yield, labor increases by 3%. The study concludes that better cotton is more economically and environmentally sustainable than conventional cotton. The study suggests that public private partnership will be a good strategy to diffuse better cotton technologies among the farming communities.
اظهر المزيد [+] اقل [-]The environmental consequences of the conservation tillage adoption decision in agriculture in the United States
1998
Uri, N.D. (Economic Research Service USDA, Washington, DC (USA). Natural Resources and Environment Div.)
