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green production of apples delivers environmental and economic benefits in China

Plant Communications 2024年第11期5卷 72-82页

作者： Di Liu Jiuliang Xu Xuexian Li Fusuo Zhang State Key Laboratory of Nutrient Use and Management College of Resources and Environmental SciencesNational Academy of Agriculture Green DevelopmentChina Agricultural UniversityBeijingChina

Sustainable alternative farming systems are gaining popularity worldwide because of the negative effects of conventional agriculture on global climate change and the environmental degradation caused by intensive use of synthetic *** green farming system in China is an integrated production strategy that focuses on reducing chemical fertilizer use while increasing organic manure *** their rapid growth as more sustainable systems over the past decades,green farming systems have not been systematically evaluated to *** used apple production as a representative case to assess the sustainability of green farming *** major apple-producing regions in China,green farming reduced the application of chemical fertilizer nitrogen(N)by 46.8%(from 412 to 219 kg ha^(−1))and increased that of manure N by 33.1%(from 171 to 227 kg ha^(−1))on average compared with conventional systems enhancing N use efficiency by 7.27-20.27%and reducing N losses by 8.92%-11.56%.It also slightly lowered yield by 4.34%-13.8%in four *** fertility was improved in green orchards through increases in soil organic matter,total N,and available major *** cradle-to-farm-gate life-cycle assessment revealed that green farming helped to mitigate greenhouse gas emissions by an average of 12.6%,potentially contributing to a reduction of 165239 t CO_(2) eq annually in major apple-producing *** addition,green farming achieved 39.3%higher profitability($7180 ha^(−1) year^(−1))at the farmer *** study demonstrates the potential of green production of apples for the development of sustainable agriculture in *** findings advance our understanding of sustainable alternative farming systems and offer perspectives for the sustainable development of global agriculture.

关键词： green farming apple nitrogen GHG emission mitigation economic benefits sustainable agriculture

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A Comprehensive Study on Photovoltaic Irrigation System for Different Crop Cultivation： Financial Evaluation Perspective

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Journal of Electrical Engineering 2014年第5期2卷 228-237页

作者： Mohd. Tareek-ul-Islam Khan Bishwajit Banik Pathik Department of Electrical and Electronic Engineering American International University-Bangladesh Dhaka 1213 Bangladesh

This article investigates the feasibility of solar powered irrigation process in Bangladesh where photovoltaic technology could be used to gather solar energy for running a submersible pump and supply water for crop cultivation. It also depicts a comparative picture of irrigation costs for 27 Bangladeshi crops for diesel and photovoltaic irrigation systems. The researchers have collected data concerning required water height during farming of those crops and then have calculated water volume for 1 ha of land. Subsequently, two commonly used pumps （solar, diesel） with same power ratings （5 hp） have been chosen. Specific areas covered by these pumps for different crops are calculated furthermore from the attained water volumes. Finally, total irrigation costs （at present condition） of these types of irrigation choices for a period of 10 years have been computed and analyzed. The study highlights that irrigation with solar energy for certain crops, namely potato, cotton, soybean, sunflower, strawberry, lentil, mustard etc. are very much lucrative compared to diesel powered irrigation.

关键词： Solar irrigation renewable energy green farming photovoltaic pumping solar for agriculture.

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