金华市农业机械化投入机制初探

农业机械化是农业现代化的基础，是现代化的先决条件，发展农业机械化迫切需要加大投入。为此，分析了金华市现阶段农机化投入的现状及存在的问题；提出了通过建立政府、集体、信贷、农户、外资等“多位一体”的投入机制，加大农机化投入，促进农机化事业健康发展的思路。     

An evaluation of the Olsen test as a measure of plant-available phosphorus in grassland soils derived from basalt parent material

Abstract. Anecdotal and circumstantial evidence have suggested that the Olsen test underestimates plant-available phosphorus (P) in basaltic soils in Northern Ireland. Therefore, the ability of this test to predict plant-available P in basaltic (and non-basaltic) soils was investigated by regressing Olsen-P data against herbage P indices calculated from plant tissue test data using the diagnosis and recommendation integrated system. The average Olsen-P concentration for a range of fields situated on basaltic soils was considerably lower than the average Olsen-P concentration for a range of fields situated on non-basaltic soils, and yet mean sward P status, as given by the herbage P indices, was similar for both groups of fields. Herbage P indices were also much better correlated with Olsen-P measurements in non-basaltic soils than in basaltic soils. Furthermore, at low Olsen-P values (≶9mgPL⁻¹) some swards on basaltic soils were genuinely deficient in P, while others were sufficient or even in surplus for this nutrient. The results confirm that Olsen-P is inadequate as a predictor of plant-available P in basaltic soils. It is concluded that an alternative soil test is needed to provide a reliable assessment of plant-available P in basaltic soils, to prevent overuse of fertilizer and manure P and to minimize the amounts of P entering local watercourses.     

高校公寓文化建设的几点思考

从校园文化、学风建设、素质教育、思想教育等方面，阐述公寓文化的作用和意义，提出理顺管理机制、发挥学生主体作用、加强制度建设，开展公寓文化活动等几点建议。     

《中国草地学报》2006-2008年载文及作者统计分析

通过对2006-2008年出版的《中国草地学报》载文及作者情况进行统计分析，研究其栽文和作者一些规律和特点。     

开拓创新锐意进取办好省级农业科技期刊——《广西农业科学》办刊实践

为了适应农业科研和生产发展的需要，《广西农业科学》编辑部在近年的办刊实践中积极探索，开拓创新，通过调整刊物定位向学术性期刊转变，增加版面和改进编辑流程缩短文章出版时滞，拓宽报道范围扩大影响力，加强与同行的交流学习，提升办刊理念，实行文稿校核质量控制体系，保证刊物质量，强化编辑队伍建设提高编辑人员业务素质，加强期刊经营增强期刊社经济实力等措施，使期刊的内外质量不断提高，社会效益和经济效益显著增强，期刊进入良性发展阶段。     

运用模糊数学和灰色系统理论分析评价夏播花生区试品种

运用模糊数学和灰色系统理论，对2007年河南省夏播花生区试品种进行了多因素综合评价和分析，结果表明：周花4号评价指标是0．7089，综合表现最优；其次是W9847—1—3—4—1，其综合评价指标是0．6352；豫花6号评价指标是0．3630，综合表现最差。此结果与试验地实际表现基本相一致。     

试论工科院校大学生的审美教育

工科院校在强调专业教育的同时，没能同样重视审美教育。加强对工科院校大学生的审美教育，有助于培养正确的审美观，提高审美能力;有助于完善知识结构，提升人文精神; 有助于形成独立完善的人格，提升人格境界;有助于培养个性和谐、德智体美全而发展的高素质人才。     

The Phytotoxicity of Various Graminicides in Durum Wheat in Greece

The effect of three herbicides, diclofop-methyl (DM), imazamethabenz-methyl (IM) and fenoxaprop-ethyl (FE), was investigated at the recommended rate (×) and double the recommended rate (2×) in a durum wheat crop. FE had the smallest effect on root system characteristics, while IM had the greatest effect. For all herbicides, the double rate treatment gave a greater statistical reduction than the single rate for root system characteristics. FE had the smallest effect on the activity of aerobic microorganisms, while DM gave the greatest reduction, 10 days after application, and all three herbicides reduced earthworm abundance. DM gave the smallest reduction in the number of tillers and in plant height, while the double rate of IM gave the greatest reduction. For all three herbicides, double the recommended rate resulted in a significant reduction in the weight of 1000 seeds, while no statistically significant deviations were noted at the recommended rate. Finally, the use of all three herbicides resulted in significantly lower statistical yields compared to the sample (control plot), although there were no significant statistical differences among them, for either recommended or double recommended rates.     

Effect of Low Night Temperatures on Photosynthetic Activity of the Maize Seedlings (Zea mays L.)

Night chilling (5 °C) subsequently lowered photosynthetic intensity in the leaves of maize seedlings at 20 °C through an increase in leaf diffusive resistance brought on by lower tissue water content in morning hours. A more significant increase in leaf diffusion resistance was observed when soil temperature was lowered than in the case of lower air temperature.
The unfavorable effect of soil and air cooling temperature on photosynthesis was limited by air saturated with water vapour. However, as a result of lowering the night temperature from 5 °C to 1 °C, the efficiency of the protective influence of higher atmospheric humidity was decreased. This demonstrates that the participation of factors unrelated to plant water status in inhibiting photosynthesis increases with lower night temperatures.
An additional reason for inhibited photosynthesis following cool nights was a decrease in chlorophyll accumulation, below 50 μg per 1 cm² of leaf area.     

单克隆抗体ELISA检测犊牛粪便中冠状病毒抗原

用两株单克隆抗体混合后包被ＥＬＬＩＳＡ微孔板，加牛冠状病毒抗原，加经白陶土处理过的兔抗牛冠状病毒免血清，再加上辣根氧化物酶标记的羊抗兔ＩｇＧ抗体，加底物质显色间接ＥＬＩＳＡ检测牛冠状病毒抗原获得成功。用此方法检测细胞培养的牛冠状病毒上清液，其敏感度高出血凝试验（ＨＡ）８倍，从武汉市附近３个奶牛场采集犊牛腹泻粪便１０５份，用单抗ＥＬＩＳＡ检测牛冠状病毒抗原，共检出阳性３６份，并与血凝及血凝抑制试验，