落叶松KP浆碱抽提段强化漂白研究

重点研究了落叶松KP浆CEH三段漂白碱抽提段用H2O2强化的工艺，并对添加螯合剂EDTA的效果进行了研究。     

城镇净化沼气池残渣还田处理试点研究

通过对城镇生活污水净化沼气池残渣与农村沼气池沼渣性质的分析比较及农田土壤成分的分析，提出了城镇净化沼气池残渣还田处理研究。在连续三年对小麦，油菜施用城镇净化沼气池残渣还田处理效果研究的基础上，总结出了实用的施用技术。     

木材加工企业热能源自给问题的探讨

木材工业中干燥耗能与能源紧的矛盾日益突出，国外木材加企业在热能源自给方面技术已趋成熟，实施效果良好，为了增强国内企业节约能源的意识，本文详细测算分析了木材加工企业废料数量关系，提出了变废料为燃料、实现企业热能源自给的设想和依据。     

粮谷中丙线磷残留分析方法

对粮谷中丙线磷残留量的检测，采用新法以甲醇提取样品，经液液萃取净化后，再以气相色谱／氮磷检测器测定，测定低限为０．００５μg/ml的浓度范围内，标准曲线呈良好的线性关系γ＝０．９９６，变异系数为５．８％－７．８％，回收率为７２．０％－１００．２％。取代了常规法的繁锁操作程序，使操作步骤更加简便，分析速度快且灵敏度高，适用范围广。     

直接竞争ELISA检测氯霉素残留的方法建立及初步应用

用混合酸酐法合成氯霉素的CAP抗原,用过碘酸钠氧化法合成CAP酶标记抗原,用ELISA方法对合成的CAP抗原、CAP酶标记抗原进行鉴定表明其与抗CAP单克隆抗体具有特异性反应。在此基础上建立了包被二抗的直接竞争ELISA方法。特异性试验结果表明,CAP琥珀酸酯、CAP琥珀酸钠盐的交叉反应率分别为107%、106.4%;甲砜霉素、氟甲砜霉素与CAP的交叉反应率小于0.016%;与其他结构类似物间未见交叉反应。该方法对CAP的检测限可达到0.1μg/L,IC50为11.6μg/L,线性范围0.1～100μg/L,批内变异系数小于11.5%,批间变异系数小于19.6%。对猪肉、鸡肉、蜂蜜分别添加1.0、3.0、10.0、30.0μg/L CAP标准品,回收率61.0%～102.0%,变异系数为6.6%～15.8%;对猪肉、鸡肉、蜂蜜中CAP的最低检测限分别为0.48、0.42、1.20μg/kg。     

Effect of Tillage and Plant Residue Management Practices on Shrinkage of a Vertisol

A study was carried out to determine the effects of different tillage and plant residue management practices on different soil moisture and shrink-swell properties of a Vertisol (very fine, semctitic, thermic, chromic Haploxerert (with less than 1 % slope). The core samples were collected in July (after harvesting of lentil) and in November (after planting of wheat) 1993. The two tillage methods were moldboard (T1) and chisel (T2). The two plant residue incorporation dates were in August (R1) and in October (R2). Results indicated that T2 tends to give higher water holding capacity and available moisture than T1. Immediate incorporation of plant residue (R1) tends to increase the bulk density and to decrease soil specific volume and void ratio when compared to late incorporation treatment (R2). In general, the two tillage treatments tend to decrease moisture availability, shrinkage characteristics, soil specific volume, and void ratio. They also tend to increase the soil shrinkage (subsidence and cracks volume) and bulk density. Chisel plough is recommended in Vertisols, if it is to be used before the rainfall.     

Effect of Tillage System on Soil Strength and Bulk Density of Vertisols

Improving the soil environment for seedling emergence and plant growth is possible using a good tillage system. From March 1993 until June 1994, the effect of tillage system and plant residue incorporation practices on the bulk density and the soil strength of the surface layer of a vertisol (very fine, smectitic, thermic, chromic Haploxerert), on a less than 1 % slope, was investigated. The two tillage methods were moldboard (T1) and chisel (T2). The two plant residue incorporation dates were in August (R1) and in October (R2). Results indicated that R1 gave significantly higher bulk density than R2, while the different tillage treatments had no significant effect. Soil strength was significantly lower under T1 and R2 than under the other treatments.     

发酵柑桔渣取代麦麸饲育肥猪试验

柑桔渣经微生物发酵后烘干，以１０％～１５％比例取代麦麸添加到猪日粮中 饲喂育肥猪。饲料适口性良好，对猪的采食和增重均无影响。猪只经屠宰解剖表明，发酵 柑桔渣作猪饲料无任何毒副作用。具有明显的经济效益和社会效益。     

牲畜排泄物综合利用路径探究——以盐城奶牛场牲畜排泄物为例

随着中国畜禽养殖规模扩大,集约化程度不断提高,同时伴随化肥工业的迅速发展,使有机粪肥大量闲置,不能及时还田,导致环境污染。本文旨在了解沼气利用现状的基础上,研究牲畜排泄物的综合利用方式,探索畜禽粪便资源化利用的技术途径,为实现养殖场的可持续发展和发展生态农业提供参考。     

高效液相色谱法检测牛乳中的磺胺类药残留量

为建立HPLC法测定牛奶中磺胺类药残留量的方法。样品经乙腈处理沉淀蛋白质后取上清液浓缩,以乙腈-水(体积比为1∶1)为流动相进行高效液相色谱分析。结果表明4种磺胺类药分离效果良好,平均回收率范围81.6%～95.8%,相对标准偏差为1.5%～4.2%,最低检出限达1.0～2.0ng/mL。可见该检测法具有灵敏、准确、精密、无杂质干扰等优点。