نتایج جستجو برای: agricultural total factorproductivity
تعداد نتایج: 890560 فیلتر نتایج به سال:
Green agriculture is the future of agricultural development. However, there has been little attention paid to relationship between market-oriented reform subsidies and green Based on quasi-natural experiment China’s maize purchasing storage policy (MPSR), this paper studied impact subsidy development from perspective total factor productivity using difference-in-difference model. The results sh...
Based on the theory of property rights and division labor, this paper constructs mechanism rural collective system reform to promote agricultural total factor productivity (TFP). And using PSM-DID analysis impact TFP. The results show that has improved This study is beneficial objectively evaluate effect right reform, great significance explore focus key path new round under background common p...
considering the importance of the agriculture sector in iran, this study investigated factors affecting economic growth and development of the agriculture sector in iran over the period of 1967-2009 for short term and long term, using ardl model. the results showed that the ratios of public investment expenditure to the gdp for short-term and long term have positive impacts on the economic grow...
Water resources are very important to agricultural production. In recent years, the change rate of cultivated land area in China has been low, so it is not easy increase its and improve production capacity. To measure impact China’s water on efficiency from 2012 2016, this research applies dynamic SBM model, conceives as an external input, uses immutable intertemporal variable. The empirical re...
In this study, to discover how the growth of digital agriculture has impacted agricultural green total factor productivity (AGTFP), we take panel data from 2011 2019 for 30 Chinese provinces as research object, measure AGTFP and development using SBM-ML entropy method, use a fixed effect model analyze effects on AGTFP. The results demonstrate that (1) time-series characteristics, presented stea...
Agricultural irrigation practices will likely be affected by climate change. In this paper, we use a statistical model relating observed water use by U.S. producers to the moisture deficit, and then use this statistical model to project climate changes impact on both the fraction of agricultural land irrigated and the irrigation rate (m³ ha⁻¹). Data on water withdrawals for US states (1985-2005...
Decomposition of organic matter integrates collective activities of organisms within the soil food web. We compared decomposition of museum board (predominantly cellulose) and balsa wood substrates in 18 sites chosen to represent a completely nested design with two disturbance levels nested within three ecosystems (agriculture, wetland, and forest) and ecosystems nested within three land resour...
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