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养分资源管理理论技术及其应用现状研究 董若征 2009384 植物营养专业 摘要：我们把植物、动物的生产过程视为一个系统，则土壤、肥料和环境所提供的养分都是这个系统中的养分资源。它是维持植物生长的重要物质基础。因此提高养分资源利用效率不仅能增加农业的系统效益和农民的直接收益，而且能促进我国农业的可持续发展并改善人类生存的环境质量。本文在阐述了养分资源综合管理的理论和原则的前提下，分析了我国养分资源利用特点。并结合养分资源综合管理的理论和原则对一些实例进行了论述和分析。 关键词：养分资源管理；理论技术；水旱轮作系统；番茄；菜田 植物生长需要碳、氢、氧、氮、磷、钾、硫、钙、镁、硼、锰、铁、钼、锌、铜、氯、镍17种必需营养元素，养分是这些营养元素的简称。养分资源与人类赖以生存的食物、空气和水等资源密切相关。众所周知，粮食是植物利用土壤中的水分和养分，通过光合作用从大气中吸收CO2而生产的。养分作为维持植物生长的重要物质基础，不但是生命元素，也是一种资源，同时还是环境污染因子，当它们在环境中浓度过高时就会造成环境污染。养分资源包括土壤、化肥、有机肥和环境所提供的所有养分，因此，通过优化养分管理、保持养分的合理流动和循环是农业可持续发展的基础，也是维持人类生存的环境质量的基础[1]。 [ Last edited by atgadktgh on 2010-9-6 at 11:25 ] |
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wypward(金币+1):谢谢参与 2010-09-10 08:16:08
atgadktgh(金币+5, 翻译EPI+1):呵呵，我已经自己翻译好了，不过还是谢谢你的回复，可以做下参考。 2010-09-14 11:24:06
wypward(金币+1):谢谢参与 2010-09-10 08:16:08
atgadktgh(金币+5, 翻译EPI+1):呵呵，我已经自己翻译好了，不过还是谢谢你的回复，可以做下参考。 2010-09-14 11:24:06
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Theoretical techniques and current application of nutrient resource management Dong RZ 2009 384 plant nutrition Abstract: the nutrient supplied by the soil、fertilizers and environment are nutrient resources in the system which we take as the production process of plants and animals. It’s of vital importance to support the growth of plants. It’s not only increase the agricultural systematic economy and farmers’ direct income by enhancing the rates of resource utilization efficiency, which also stimulates our agriculture’s sustainable development and improves the environmental quality for human survival. Here we analyzed the utilization characteristics of our country’s nutrient resource at the base of describing the theory and principle of nutrient resource’s general management. Keywords: nutrient resource management; t theoretical techniques; systems in water and dry; tomato; vegetable fields. The 17 kinds of nutrient elements C,H,O,N,P,S,K,Ca,Mg,B,Mn,Fe,Mu,Zn,Cu,Cl and Ni are necessary for plants’ development is called nutrient. Nutrient resource is intimately associated with resources of which the human beings depending on such as foods, air and water. As is well known, foods are produced by plants by using the water and nutrient from the soil and photosynthesis by absorbing the CO2 from the air. As an important material foundation for keeping the growth of plants, nutrients is not only a life elements and a kind of resource, it’s also a kind of environment pollution when it existed in the air with a high density. Nutrient resources including all the nutrients supplied by soil, chemical fertilizers ,organic fertilizers and environment，so it’s not only the base of sustainable development of agriculture by optimizing the nutrients’ management and keeping the reasonable circulation, it’s also the foundation of keeping the environmental quality of human beings. |
2楼2010-09-09 14:15:46