反复无常
发表于 2025-3-28 16:37:52
Public R&D and Infrastructure Policies: Effects on Cost of Midwestern Agricultureion, infrastructure, and other programs. States are heterogeneous in agro-climatic conditions and resource-base, and they have different public R&D, extension, and infrastructure policies. The objective of this paper is to assess the impacts of public investment in research and infrastructure on cos
下垂
发表于 2025-3-28 21:09:56
http://reply.papertrans.cn/16/1517/151602/151602_42.png
Confidential
发表于 2025-3-29 01:10:15
Environmental Indicators of Pesticide Leaching and Runoff from Farm Fieldslth and the environment from pesticide contamination of water leaving farm fields. Environmental indicators are designed to be . estimates of potential risk that are based on pesticide use and on the . that are known to be important determinants of pesticide loss from farm fields, such as the intrin
胆小鬼
发表于 2025-3-29 04:36:33
http://reply.papertrans.cn/16/1517/151602/151602_44.png
字的误用
发表于 2025-3-29 07:21:22
The Effect of Ground Water Regulation on Productivity Growth in the Farm Sectornce between labor, capital, and material inputs, on the one hand, and air and water resources, on the other. Consumption of any one entails true opportunity costs. The case for expanding the now familiar Total Factor Productivity (TFP) measures to Total Resource Productivity (TRP) is self-evident an
COKE
发表于 2025-3-29 11:44:43
http://reply.papertrans.cn/16/1517/151602/151602_46.png
BILE
发表于 2025-3-29 18:02:43
http://reply.papertrans.cn/16/1517/151602/151602_47.png
Mets552
发表于 2025-3-29 21:36:56
http://reply.papertrans.cn/16/1517/151602/151602_48.png
使熄灭
发表于 2025-3-30 03:30:54
http://reply.papertrans.cn/16/1517/151602/151602_49.png
Exuberance
发表于 2025-3-30 05:30:47
http://reply.papertrans.cn/16/1517/151602/151602_50.png