铯－134在幼龄茶树叶片中的分布特点

茶树上喷洒￣（１３４）Ｃｓ后，老叶上的沉积量和新叶上的吸收量均按指数回归形式下降，下降的速率以老叶上最快，春茶叶和夏茶叶上次之，秋茶叶上最慢；灌溉和土壤中拌入￣（１３４）Ｃｓ后，茶叶对￣（１３４）Ｃｓ的吸收分两个阶段进行，前期随着时间延长而增加。后期则减少。吸收量有个最大值；茶叶中￣（１３４）Ｃｓ的含量在喷洒情况下比灌溉和拌土的高。     

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.     

辣椒夏季品比试验报告

为了考察我公司新推广品种及新配组合在高温伏旱状况下的适应性，我们于2003年5月7日在公司试验基地进行了品种对比试验。结果表明新推广品种中有九个品种或组合为极耐热或耐热，一个品种耐热性稍差。新配组合中部分表现优良，有推广前景。     

Mid-storage and pre-sowing seed treatments for lettuce and carrot

Mid-storage hydration-dehydration treatments with medium-vigour lettuce seed very effectively reduced physiological deterioration in storage and ultimately showed better field emergence and final yield. Soaking-drying treatment of high-vigour lettuce seed was not effective. Pre-sowing treatment of medium-vigour lettuce seed, though less effective than mid-storage treatment, gave better field performance, but high-vigour seed did not benefit from the treatment. For carrot, both mid-storage and pre-sowing seed treatments proved beneficial, with the former showing better performance than the latter. Unlike lettuce, well-preserved carrot seed responded positively to the pre-sowing treatment.     

沼肥对苹果生物性状的试验初报

笔者对苹果施用沼肥后的生物性状进行了长达4a的对比试验研究，采取对比设计法，在叶、枝、花、果等器官的相关指标取得了极为明显的效果，在果业生产上有极好的推广价值。     

八种中草药体外抑制大肠杆菌的效果观察

选取马尾松、田基黄、艾草、雷公根、芭蕉芯、浮萍、野菊花、番石榴叶8种中草药，采用常规中草药药敏试验打孔法和试管法对猪大肠杆菌（K88）、大肠杆菌（0157）进行体外抑菌试验。结果显示，艾草、野菊花、番石榴叶对大肠杆菌呈高度敏感，其中艾草对大肠杆菌抑菌力最强；马尾松挥发油对大肠杆菌呈中度敏感；田基黄、雷公根、芭蕉芯、浮萍对大肠杆菌无抑菌作用。     

奶牛布鲁氏菌病的病原分离鉴定及血清学研究

通过细菌分离、动物试验、细菌学与血清抗体之间相互关系、温度与感染动物之间相互关系等分离一例奶牛布鲁氏菌。发现细菌学与血清抗体呈平行关系，试管凝集反应与补体结合反应存在一定差异，感染动物14天出现波浪热，持续到剖杀前(31天)。     

频域心电图对冠心病诊断价值的初步探讨

对５０例冠心病和５０例随机做平板运动试验（ＴＥＴ）者作频域心电图（ＦＣＧ）对比分析探讨ＦＣＧ对冠心病的诊断价值。结果表明：单纯根据ＦＣＧ异常诊断冠心病有较高假阳性（６５．２２％）。如将ＦＣＧ的阳性指标作综合判断，虽然敏感性降低（８８．００％降至７０．００％）。假阳性都明显降低（６５．２２％降至２６．００％）。认为ＴＥＴ的特异性较ＦＣＧ高。若两者均为阴性，则冠心病可能性很小。     

冷季型草坪草建植管理技术研究

采用正交设计进行施肥里、刈割高度、播量，草坪草品种4因素4水平试验，通过测定草坪草越冬率，越夏率，成坪时间，叶绿素，杂草盖度，生长度，初步筛选出不同目的冷季型草坪草的建植管理方案。     

烘丝温度和时间对生丝机械性能的影响

从刚落下的丝片上摇取小绞丝,分别在25—180℃和30、60、90min下进行干热处理后,测定其机械性能。结果表明:在90—100℃、30—60分钟时,生丝的强伸力、初始模量以及抱合等机械性能都较好,烘丝温度太高,时间太长都会对生丝机械性能产生不良的影响。