Zhuhai National Agricultural Science and Technology Park was analyzed and evaluated by using emergy theory and method,such as emergy,solar transformity,the ratio of renewable resource emergy,the ratio of nonrenewable resource emergy,the ratio of industry assistant resource emergy to the assistant imported emergy,the ratio of organic resource emergy to the assistant imported emergy,the ratio of electric power emergy to the total imported emergy,emergy/money ratio,emergysufficiency ratio,emergy investment ratio,emergy yield ratio,emergy per area,emergy per person,environment loading ratio,demonstration power of science and technology,radiation power of science and technology and emergy sustainable index.The main results were as follows:(1)The total imported emergy and the total exported emergy increased quickly;the ratio of renewable resource emergy,the ratio of nonrenewable resource emergy,emergy self-sufficiency and the emergy yield ratio all went up undulatingly;however the emergy per area,emergy per person,emergy investment ratio,environment loading ratio and the emergy sustainable index fluctuated down in Zhuhai National Agricultural Science and Technology Park from 2000 to 2005.These changes showed that Zhuhai National Agricultural Science and Technology Park had the development and the growth power of economic and technology competition,but the total imported emergy slow increasing compared to the extendable park area.The technical innovation and upgrading industries were hold back.(2)The emergy self-sufficiency ratio and environment loading ratio were screened for the emergy evaluation index of Zhuhai National Agricultural Science and Technology Park by using the principal components and factor analysis method.

研究了智能温室、简易温室和大田3个不同环境条件下栽培的番茄的生长发育情况以及产量、品质等指标,结果表明:在智能温室生长的番茄营养生长发育良好,产量比大田栽培增产74.54%,采收期延长30多d,且食用品质更优,为体现现代设施栽培的优越性提供了理论依据.

阐述了我国农业科技园区建设的主要成效和经验,分析了我国农业科技园区建设过程中存在的主要问题,提出促进我国农业科技园区健康发展的基本策略。

城郊农业具有强大的带动作用、辐射作用和示范作用,其发展的快慢对农业产业化、城镇化、工业化的发展具有重大的促进作用.城郊农业有其突出的优势,也面临严峻挑战,对城郊农业的技术需求进行深入研究,才能有针对性地开展科技创新、技术推广、技术培训,才能将城郊农业的发展引入到利用科技进步的轨道上来,以实现城郊生产、生活、生态三者的协调发展.

城郊农业具有强大的带动作用、辐射作用和示范作用,其发展对农业产业化、农村城镇化具有重大的促进作用,城郊农业科技推广的经验对全国农业的发展具有重大的指导意义.目前,城郊的技术推广体系存在诸多方面的问题,未能适应城郊农业的快速发展.必须紧紧依靠科技进步与创新,发挥农业科技对城郊农业发展的引导、支撑、推动作用.