<tt id="6hsgl"><pre id="6hsgl"><pre id="6hsgl"></pre></pre></tt>
          <nav id="6hsgl"><th id="6hsgl"></th></nav>
          国产免费网站看v片元遮挡,一亚洲一区二区中文字幕,波多野结衣一区二区免费视频,天天色综网,久久综合给合久久狠狠狠,男人的天堂av一二三区,午夜福利看片在线观看,亚洲中文字幕在线无码一区二区
          US EUROPE AFRICA ASIA 中文
          Opinion / Op-Ed Contributors

          'Save and Grow' approach to agriculture

          By Shivaji Pandey (China Daily) Updated: 2011-07-01 08:01

          Given the current and future challenges to our food supply and to the environment, sustainable intensification of agricultural production is emerging as a major priority for policymakers and international development partners.

          Sustainable intensification, or "Save and Grow", has been defined as producing more from the same area of land while reducing negative environmental impacts and contributing more to natural capital and the flow of environmental services.

          Sustainable crop production intensification is the first strategic objective of the United Nations Food and Agriculture Organization (FAO). In order to achieve that objective, the FAO has endorsed the "ecosystem approach" in agricultural management. Essentially, the ecosystem approach uses inputs, such as land, water, seed and fertilizer, to complement the natural processes that support plant growth, including pollination, natural predation for pest control, and the action of soil biota that allows plants to access nutrients.

          There is now widespread awareness that an ecosystem approach must underpin intensification of crop production.

          A major study of the future of food and farming up to 2050 has called for substantial changes throughout the world's food system, including sustainable intensification to simultaneously raise yields, increase efficiency in the use of inputs and reduce the negative environmental effects of food production.

          Assessments in developing countries have shown how farm practices that conserve resources improve the supply of environmental services and increase productivity. A review of agricultural development projects in 57 low-income countries found that more efficient use of water, reduced use of pesticides and improvements in soil health led to average crop yield increases of 79 percent.

          Another study concluded that agricultural systems that conserve ecosystem services by using practices such as conservation tillage, crop diversification, legume intensification and biological pest control, perform as well as intensive, high-input systems.

          Sustainable crop production intensi-fication, when effectively implemented and supported, can meet the dual challenges of feeding the world's population and saving the planet. Save and Grow will allow countries to plan, develop and manage agricultural production in a manner that addresses society's needs and aspirations, without jeopardizing the right of future generations to enjoy the full range of environmental goods and services.

          As well as bringing multiple benefits to food security and the environment, sustainable intensification has much to offer small farmers and their families who make up more than one-third of the global population - by enhancing their productivity, reducing costs, building resilience and strengthening their capacity to manage risk. Reduced spending on agricultural inputs will free resources for investment in farms and farm families' food, health and education. Increases to farmers' net incomes will be achieved at a lower environmental cost, thus delivering both private and public benefits.

          Previous Page 1 2 Next Page

          Most Viewed Today's Top News
          New type of urbanization is in the details
          ...
          主站蜘蛛池模板: 日本一卡2卡3卡4卡无卡免费| 精品国产成人A区在线观看| 亚洲综合一区国产精品| 亚洲综合色一区二区三区| 91久久精品国产性色也| 久久精品国产99久久6| 亚洲欧美偷国产日韩| 一区二区和激情视频| 国产AV嫩草研究院| 久久午夜无码免费| 欧洲美女熟乱av| 中文字幕精品亚洲字幕成| 在线观看无码av五月花| 亚洲国产无套无码av电影| 亚洲经典在线中文字幕 | 国产精品国产三级国快看| 婷婷亚洲国产成人精品性色| 最新的精品亚洲一区二区| 亚洲爆乳大丰满无码专区| 热久久这里只有精品国产| 国产综合久久久久久鬼色| 国产亚洲精品久久久久婷婷图片| 精品无码黑人又粗又大又长| 欧美成人h精品网站| 蜜芽亚洲AV无码精品国产午夜| 中文字幕人成乱码熟女app| 最新国产精品好看的精品| 日本黄网站三级三级三级| 肥臀浪妇太爽了快点再快点 | 亚洲一区二区女优av| 亚洲蜜臀av乱码久久| 中文字幕无码白丝袜| 欧美交a欧美精品喷水| 精品一区二区三区不卡| 国产精品中文字幕久久| 宝贝腿开大点我添添公视频免| 亚洲人午夜射精精品日韩| 在线中文字幕人妻视频| 日本成人午夜一区二区三区| 久久人妻av一区二区三区| 亚洲av成人一区二区三区|