找回密码
 To register

QQ登录

只需一步,快速开始

扫一扫,访问微社区

Titlebook: Agricultural Productivity; Measurement and Sour V. Elton Ball,George W. Norton Book 2002 Springer Science+Business Media New York 2002 Agri

[复制链接]
楼主: Taft
发表于 2025-3-28 16:37:52 | 显示全部楼层
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
发表于 2025-3-28 21:09:56 | 显示全部楼层
发表于 2025-3-29 01:10:15 | 显示全部楼层
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
发表于 2025-3-29 04:36:33 | 显示全部楼层
发表于 2025-3-29 07:21:22 | 显示全部楼层
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
发表于 2025-3-29 11:44:43 | 显示全部楼层
发表于 2025-3-29 18:02:43 | 显示全部楼层
发表于 2025-3-29 21:36:56 | 显示全部楼层
发表于 2025-3-30 03:30:54 | 显示全部楼层
发表于 2025-3-30 05:30:47 | 显示全部楼层
 关于派博传思  派博传思旗下网站  友情链接
派博传思介绍 公司地理位置 论文服务流程 影响因子官网 SITEMAP 大讲堂 北京大学 Oxford Uni. Harvard Uni.
发展历史沿革 期刊点评 投稿经验总结 SCIENCEGARD IMPACTFACTOR 派博系数 清华大学 Yale Uni. Stanford Uni.
|Archiver|手机版|小黑屋| 派博传思国际 ( 京公网安备110108008328) GMT+8, 2025-5-2 12:03
Copyright © 2001-2015 派博传思   京公网安备110108008328 版权所有 All rights reserved
快速回复 返回顶部 返回列表