نتایج جستجو برای: when agriculture products decrease

تعداد نتایج: 1938682  

2015
Liu Zheng

Based on BP neural network model, this paper aims at evaluating the performance of cold chain logistics of agriculture products. This paper analyses on the basis of the fresh business' current situation of cold chain logistics, sums up the bottleneck of China's cold chain logistics of agriculture products operation, provides competitive and practical fresh electric cold chain distribution mode ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده ادبیات و علوم انسانی دکتر علی شریعتی 1389

the purpose of this study is to investigate the relationships between teachers’ immediacy behaviors and iranian students’ willingness to talk in english classes. analysis of the results from willingness to talk scale represents a relatively high level of willingness to talk in english classrooms among iranian language learners. the total mean score of students’ willingness to talk was 66.3 ou...

2011
Mariel Aguilar-Støen Arild Angelsen Stein R. Moe

Declining profi tability of agriculture and/or higher prices of forest products and services typically drive an increase in forest cover. This article examines changes in forest cover in Candelaria Loxicha, Mexico. Forest cover increased in the area as a result of coffee cultivation in coffee forest-garden systems. Dependence on forest products and services, and not prices of forest products, d...

ژورنال: مدیریت شهری 2016
Bayat, Roohalah, Sadeghian, Elham,

on one hand, Iran due to the low annual rainfall and lack of appropriate spatial and temporal distribution in precipitation is considered as an arid and semi-arid country experiencing stress and water scarcity; on the other hand, 90% of annual water consumption has been allocated to agriculture sector in Iran and efficiency and productivity of water consumption do not enjoy favorable status in ...

2003
Yao-chi Lu E. John Sadler

Precision agriculture is a knowledge-based system that enables producers to apply precise amounts of fertilizers, pesticides, water, seeds, or other production inputs to specific areas where and when plants need them for optimal growth. It is a promising group of technologies that could theoretically increase crop productivity and profitability, reduce chemical use, and decrease environmental d...

2013
Kevin R. Caffrey Matthew W. Veal

Agriculture is a diverse field that produces a wide array of products vital to society. As global populations continue to grow the competition for natural resources will increase pressure on agricultural production of food, fiber, energy, and various high value by-products. With elevated concerns related to environmental impacts associated with the needs of a growing population, a life cycle as...

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