施用稻草等有机物料对黄瓜连作土壤速效养分的影响

不同有机物料稻草，猪粪，锯木屑成分不同，入土转化过程不同，对连作土壤速效率养分产生不同的影响，通过培养实验表明猪粪有增加土壤铵态氮，速效磷和速效钾含量，稻草能提高土 速效磷，钾含量，但降低土壤铵态氮的含量；而锯木屑地土壤铵态氮，速效磷速效钾含量的影响不大。     

Pricing Ways of Risky Investment Projects

Three ways are used to study the pricing ways of risky investment projects, namely discounting way of the end value, discounting way of cash flow and option pricing way. An example is given to study the practical use of the three ways which have different characteristics and constrained conditions. Compared with each other, it is found that option pricing way has a distinguished advantage, since this way involves the effect of the uncertainty of the value of enterprises on the value of equity, and solves the problem of the low valuation of the value of enterprises caused by the fact that the return of the first years is less than the return of the later years. At the same time, the effect of the change of capital structure on the value of equity is taken into account. Anyway, in some sides the three ways have the similar difficulties.     

黑龙港区旱地不同水文年种植方式的灰色决策初探

应用灰色系统理论和多目标灰色决策的方法,依据多年调查和研究结果,综合分析了黑龙港区旱地不同水文年了种种植方式的产量、产值、降水经济效益和降水利用效率四个目标的实际效果,提出了在不同投入水平条件下适合不同水文年的种植方式,为港区旱地科学种植提供了依据。     

浅谈茶叶与“下午茶”文化

茶叶中含有多种营养成分。中国是最早发现并利用茶叶的国家。茶叶采用不同加工方式可以生产出6种主要的不同类型的茶叶。介绍了茶叶的发现和茶文化在中国的发展历史,茶叶的分类与营养以及下午茶的由来。     

不同栽培方式下稻田千金子的成株 与结实特性研究

本文调查和研究了不同水稻栽培方式下千金子湿生体的成株与结实的生物学特性。比较得出了其湿生体与旱长株的区别，明确了移栽、抛秧和直播田的千金子在株高、茎蘖数、匐匐茎数、匐匐茎分蘖数、穗长、穗分枝数、每穗花数和千粒重性状上的异同。     

TiO2 Photocatalysis and its Effect of Sterilizing and Killing Bacterium in Low Temperature Equipment

Some small particles can be produced from TiO 2 by using photocatalytic reaction. These small particles have high oxidation ability and can be usedi n refrigeration equipments in order to sterilize and kill bacterium. The principle of TiO 2 photocatalysis and the actions of sterilizing and killing bcterium were introduced. It is explained that different structures of TiO 2 have different photocatalytic performances and clarify the ways of combining large band gap semiconductor with small band gap semiconductor and doping impurity to enhance TiO 2 photocatalytic efficiency. Some problems of TiO 2 photocatalysis and application prospects were put forward.     

不同饲养方式对固始鸡生产性能的影响

将固始鸡饲养至4周后,分别笼养和放养至18周,测量其体尺、屠体性能,到42周龄测量蛋品质。结果表明,笼养和放养的活重差异显著(P>0.05),其余屠宰指标差异不显著;蛋品质除了蛋重和蛋壳厚度差异显著(P<0.05)外,其余指标差异均不显著;放养条件下,纤维素酶高于笼养,而对总蛋白水解酶、胰蛋白酶和胃蛋白酶影响不显著。     

抗菌肽的研究现状及应用前景

抗菌肽是一类广泛存在于生物界的活性多肽,具有广谱抗菌性、热稳定性好、抗菌机理独特等优点,成为医药、食品、畜牧业的研究热点。综述了抗菌肽膜损伤型和非膜损伤型的抗菌机理,不同来源获得抗菌肽及其在医药领域和食品领域的应用前景和存在问题。天然抗菌肽的推广及应用关键在于能否高效获得,并降低其生产成本。     

大豆蛋白质塑料研究进展

近年来,农业可再生材料受到人们的重视,蛋白质是可生物降解的环境友好材料。以不同农作物蛋白质来源分别介绍了国内外蛋白质塑料的研究进展,主要有大豆蛋白质及其他豆类蛋白质,涉及蛋白质材料的增塑、交联、共混等改性方法和压缩、挤出、注射等成型方法。     

玉米雄性不育性研究 Ⅷ.玉米YⅡ-1型不育胞质归群初报

从若干方面初步研究了玉米YII-1型不育细胞质与3个主要类群的不育胞质（T、C和S）间的差异。育性恢复测验表明，YII-I胞质有其独特的恢复基因，在各类自交系核背景下，其育性表现与众不同。恢复基因至少有二对，其中一对与C群不育系有别。小斑病菌测试效应，说明YII-1型不属于T群，而线粒体DNA(mt DNA)的电泳图谱说明YII-I胞     

设施栽培中限根对油桃幼树叶片叶绿素含量、叶干重变化的影响

研究了设施栽培中限根对沪油018幼树叶片叶绿素含量、叶片干重的变化特点。结果表明:(1)限根幼树在秋季枝条停长后, 不同限根处理第1～8叶位叶片叶绿素含量均表现为“升—降—升”；相同叶位处理TR2各个叶位单位叶面积叶绿素含量均低于CK和TR1,CK仅在第1、8叶位较TR1高,而其它叶位均低于TR1。(2)测定盛花后19～262d树冠外围枝中部完全展开功能叶的叶绿素变化动态,结果不同限根处理Chla、总叶绿素含量与Chl(a/b)的变化均表现“降—升—降”的变化规律。限根对Chlb的季节变化进程的影响差异明显。(3)不同限根处理下比叶重的季节变化差异明显,但总的呈上升趋势。叶片干重含水量%的季节变化总的呈下降趋势,不同限根处理间的变化动态差异明显。     

不同育苗方式对苦瓜育苗效果的影响

通过研究营养钵育苗、穴盘育苗、营养基质块育苗对苦瓜幼苗生长的影响,筛选出最佳的苦瓜育苗方式。调查不同方式育苗条件下苦瓜出苗速度、株高、茎粗、节间长、叶数、叶长、叶宽、地上部干鲜重、根干鲜重等生长指标,分析壮苗指数。3种育苗方式中,以营养钵育苗最好,幼苗的茎最粗,为3.02 mm;叶片最大,长、宽分别为5.77 mm和6.23 mm;根系最发达,鲜、干重分别为1.45 g和0.08 g;生长量最大,地上部鲜、干重分别为4.14 g和0.35 g;壮苗指数最高,为0.18。采用营养钵育苗,幼苗生长稳健,株高适中,茎粗,叶片宽大,根系发达,壮苗指数高,有利于培育壮苗。     

失地农民几种主要补偿安置方式的比较分析

总结了目前中国存在的一次性货币补偿安置、重新择业补偿安置、农业生产补偿安置、入股分红安置、异地移民安置和“征地保障”安置方式等六种补偿安置方式,分析了不同补偿安置方式的利弊和适用的条件,最后指出以后的补偿安置不是采用单一的方式,而是根据不同地区社会经济发展水平以及处于不同年龄段的失地农民的不同需要,选择不同的组合方式。     

Test and Analysis of Indoor Thermal Environment of Urban Heating Residential Building in Hanzhong Area

By testing indoor and outdoor thermal environment of residential buildings that apply 4 mostused heating ways in Hantai District,Hanzhong City,this paper explored the indoor thermal environment conditions of different heating ways,to provide references for choosing a suitable heating way in the local area.     

不同免耕栽培方式对水稻产量及土壤肥力的影响研究

为了探讨不同免耕栽培方式对水稻产量及土壤肥力的影响,龙岩市农技站在双季稻区进行了连续3年的不同免耕栽培方式试验。结果表明：半年免耕早、晚稻产量与习惯有耕相比无显著差异,且对土壤的物理性状及养分状况影响不明显,节本增收效果好,可作为水稻免耕的主要方式推广;全年免耕晚稻产量与习惯有耕相比产量减少,土壤容重增加;全年免耕、半年免耕与习惯有耕的土壤pH、有机质及主要养分含量无差异。     

三个大豆雄性不育系的发现和研究初报

本文报道了从三个不同途径发现的3个大豆雄性不育系,并做了初步的利用研究.其实际应用主要受其雌性可育性程度和天然传粉媒介物两个因素的影响.半显性不育系的发现为大豆雄性不育研究提供了新的材料.     

Culture and the commodification of water in Samoa

While ‘solutions’ to challenges of water supply in the Pacific may seem obvious to hydrologists, engineers and planners, their implementation may not be straightforward. Water is embedded in cultural, religious and political contexts, and what seems obvious to planners may seem neither obvious, nor acceptable, to citizens. However, these contexts change continuously, and opportunities arise for changes in narratives around ownership, supply and management of water. Citizens' beliefs about the state's ‘rights’ will vary with societal context, and will shape the ways in which ownership and management of water is worked out in specific locations. This paper outlines thinking and discourses around ownership and management of fresh water in Samoa, and the constraints which culture has imposed on water supply over time. Water discourses have shifted from questions about ownership of specific sources to general discussions about conservation and management of natural resources. This shift has resulted, in part, from the ways in which government has managed the process and, in part, from growing public awareness of water within the larger environmental context. The paper focuses on Samoan material, but some of the generic issues have wider significance in the Pacific because similar variables combine in similar ways.     

控水灌溉对水稻根系生长影响的试验研究

采用单因素重复试验,探讨不同控水灌溉方式对水稻根系生长的影响。研究结果表明,不同灌溉方式对水稻根系影响不同,适当的控水灌溉可以增加水稻根系长度、数量、根体积及干物质的重量,同时能够增强水稻根系活力;控水灌溉能够节约用水2625m3/hm²,提高水稻产量580.35kg/hm²。     

黄金梨贮期病原菌种类及侵染规律研究

本试验以黄金梨为试材,研究贮藏期病原菌种类、侵染和发病规律。试验共分离到9种病原菌。回接实验表明,该9种病原菌的致病力存在较大差异,并确定引起黄金梨贮期腐烂主要病原菌有交链孢霉（Alternaria sp.）、总状毛霉（Mucor racemosus）、拟茎点霉（Phomopsis sp.）和意大利青霉（Penicillium italicum）。     

品种、播期及育苗方式对第二季茎瘤芥（榨菜）生育期及产量的影响

为了给重庆市涪陵区两季茎瘤芥栽培提供技术支撑,采用裂区试验设计,研究不同播期、不同品种、不同育苗方式对第二季茎瘤芥生育期及产量的影响。结果表明：播期、品种、育苗方式对第二季茎瘤芥生育期影响较大。试验范围内随着播期推迟,营养生长期缩短,极差3.5天,减幅2.2%;瘤茎生长期缩短,极差39.8天,减幅41.5%;日历苗龄增长,极差20.0天,增幅达60.6%。‘涪杂7号’与‘永安小叶’相比,膨大始期平均提早2.0天,瘤茎生长期长6.3天,现蕾期晚4.3天,营养生长期长4.3天。7 cm直径营养钵与100孔塑料穴盘2种育苗方式生育期相同,但比同期常规育苗营养生长期短2.0天,瘤茎生长期长2.7天,瘤茎膨大始期提早4.7天。最佳处理组合为A1B2C1,即播期为9月30日,品种为‘涪杂7号’,采用7 cm直径塑料营养钵育苗,产量可达72650.0 kg/hm²。