玉米秸秆、棉籽壳菇渣替代草炭作为番茄和甜椒育苗基质研究

利用腐熟玉米秸秆、棉籽壳菇渣与草炭和蛭石按照不同的比例组配成复合基质,进行番茄和甜椒穴盘育苗的结果表明：番茄穴盘苗培育以等体积的棉籽壳菇渣、草炭、蛭石混配基质的效果最好,其次是等体积玉米秸秆、草炭、蛭石混配的基质;玉米秸秆2 V、蛭石1 V 混配的基质适于甜椒穴盘育苗,其次是等体积的棉籽壳菇渣、草炭、蛭石混配的基质。合理使用腐熟玉米秸秆和棉籽壳菇渣可以减少草炭用量,改善基质理化性状,促进番茄和甜椒幼苗生长,培育优质壮苗。     

西瓜穴盘育苗播后灌溉施肥技术研究

以西瓜‘中选1号’品种为试材,研究了与播前启动肥配套的播后不同施肥种类、施肥浓度及施肥频率对西瓜幼苗生长发育及壮苗形成的影响,通过测定茎粗度、全株干质量等形态指标及叶绿素含量、根系活力等生理指标,筛选出西瓜穴盘育苗播后灌溉施肥较优处理为：子叶平展至2片真叶平展时12—2—14、20-10—20两种肥料交替使用,施肥浓度为100mg·kg^-1N;2片真叶平展至4片真叶平展时12—2—14、20-10～20两种肥料交替施用．施肥浓度为200mg·kg^-1N;4片真叶平展至6片真叶平展时12—2—14、20—20—20两种肥料交替施用,施肥浓度为300mg·kg^-1N,3个阶段施肥频率均为1次肥、2次水。西瓜幼苗表现为壮苗指数增加、叶绿素含量升高和根系活力增强．分别比其他处理提高了5．14％～16．83％、2．71％。6．09％、5．41％～10．05％。     

控释肥种类及用量对番茄和甜椒穴盘育苗效果的影响

[目的]为探明基质中添加控释肥对番茄、甜椒穴盘育苗效果的影响,为控释肥在蔬菜集约化育苗中的应用提供依据.[方法]以番茄和甜椒为试材,以腐熟棉籽壳菇渣＋草炭＋蛭石1∶1∶1（V/V）为育苗基质,进行不同用量控释尿素、控释复合肥比较试验,观测对幼苗出苗率、壮苗指数和叶绿素含量、净光合速率、根系活力等生长生理指标以及植株养分吸收的影响.[结果]与喷浇营养液、基质中掺施普通化肥相比,添加等量控释复合肥或控释尿素的番茄壮苗指数分别提高2.12％、22.95％和4.47％、25.78％,甜椒壮苗指数分别提高24.78％、24.24％和25.22％、24.68％;控释肥养分用量减少20％,育苗效果仍与喷浇营养液相当,但明显优于掺施普通化肥.[结论]基质中掺混适量控释复合肥或控释尿素对番茄和甜椒的育苗效果优于喷浇营养液或掺混普通化肥.     

Outcome clinical audit: analyses of interventional closure of patent ductus arteriosus in dogs

ObjectivesThe objectives of this study were to determine whether conducting a clinical audit was achievable in a group of centres that perform interventional cardiac procedures and to report the success and complications rates in dogs diagnosed with patent ductus arteriosus.MethodsThis was a multicentre, European-wide, prospective study. Patient data were entered into a bespoke database prior to commencing interventional closure of patent ductus arteriosus in all animals undergoing this procedure during the study period. The database was designed to gather clinical audit information, after completion of the procedure, such as discharge outcome, complication rate, and medium-term outcome.ResultsA total of 339 cases were included from five participating centres. The process of performing clinical audit was achieved in all centres. Successful discharge outcome was 95.9% with a complication rate of 4.1%. The procedure-related mortality was 0.6%. 149 cases (43.9%) were either lost to follow-up or had not yet had a follow-up within the time period. Of the remaining 169 cases in which follow-up was available, 157 (92.9%) cases had a successful medium-term outcomeConclusionsThis study demonstrates that the process of performing a clinical audit is achievable in veterinary clinical interventions across different centres. These results provide a benchmark for future comparison in our ongoing clinical audit and validate the process of clinical audit for other centres performing cardiac interventions. The use of clinical audit should be considered in other aspects of veterinary medicine.