共查询到20条相似文献,搜索用时 31 毫秒
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<正>受北方地区持续低温雨雪天气影响,2010年东北大部分玉米主产区春耕春播起步较晚、进度较慢,东北地区春耕春播时间普遍推迟10天左右,春播的推迟对于今年玉米的 相似文献
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新产早籼稻马上就进入成熟收割期了。早籼稻盘子虽小(近年早稻产量占稻谷总产的比例在17%左右),但作为每年第一个上市的稻谷新作品种,其价格往往对新的市场年度的稻谷整体价格有重要影响,历来引人注目。今年4月2013,郑州商品交易所成功推出了早籼稻期货,除产业资本之外,今年早稻势必还会吸引金融资本的关注。因此,今年市场对新产早稻的关注将会有增无减。在新早稻上市前,本文从以下几个方面对市场进行前瞻性展望,谨供读者参考。 相似文献
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H.J. Kraus 《Journal of Agricultural Economics》1969,20(1):45-55
The Kennedy Round, concluded in 1967, ws the most far-reaching in the series of trade negotiations. The United States insisted on the inclusion of agricultural products, with the support of other foodexporting countries. The results for agriculture should not be underestimated. The agreement on cereals gave practical recognition of joint responsibility in food aid. There were also many agricultural tariff concessions. However, it is domestic agricultural policies, not tariffs, which really hamper agricultural trade. The cost of these policies and the extent to which they achieve their objectives are questionable. Competition becomes fiercer for the remaining accessible markets, and export subsidies multiply. The Kennedy Round left the basis problems untouched. It did, however, strengthen the “global” or comprehensive, multilateral approach. 相似文献
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Ralph D. Johnson 《Revue canadienne d'agroeconomie》1972,20(3):23-32
This article is an outgrowth of a study that failed to find any economies of size in total cost of feeding cattle. It examines a number of cattle feeding studies that reportedly found economies of size and explains why the author is not willing to accept their findings. This article is not concerned with the external economies of size that may or may not exist in cattle feeding Cet article est le résultat ?une recherche qui n'a pas réussit à trouver de grands économics dans le prix total de ?engraissement de bétail. II examine un certain nombre ?étude sur ?engraissement de bétail que rapporterent (dit-on) de grands economies el il explique aussi pourquoi ?auleur n'est pas prêt à accepter leurs conclusions. Cet article ne se concerne pas avec les economies de grandeur extérieur quipeuvent ou nepeuventpas exister dans ?engraissement du bétail. 相似文献
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关于实行捕捞限额制度的探讨 总被引:4,自引:3,他引:1
本文阐述了捕捞限额(TAC)的理论、发达国家的做法、我国《渔业法》关于捕捞限额管理的有关规定,探讨了实行捕捞限额管理中可能遇到的问题,提出了实行捕捞限额制度的具体建议。 相似文献