打瓜配方施肥技术研究──N、P、K、Zn组分配比及其肥料效应

重点研究了打瓜不同生育期植株内Ｎ、Ｐ２Ｏ５、Ｋ２Ｏ含量的变化，及Ｎ、Ｐ２Ｏ５、Ｋ２Ｏ、Ｚｎ不同组分配比对打瓜产量的作用及Ｎ肥肥料效应曲线方程，提出了打瓜的施肥时期为甩蔓期和幼瓜膨大期，前者重施Ｎ、Ｐ肥。砂壤土适于打瓜丰产的Ｎ、Ｐ２Ｏ５、Ｋ２Ｏ的比例为１：０．４６：１．２１，在高Ｐ土壤上可采取Ｐ／Ｚｎ等于２４７．４比值法来施Ｚｎ增产。打瓜Ｎ肥肥料效应曲线方程为Ｙ＝－２．０１＋２０．４Ｎ—０．４４３Ｎ２，Ｎｍａｘ＝２２．７ｋｇ／亩，Ｙｍａｘ＝２２６．９ｋｇ／亩。分析出今后我区打瓜配方施肥方法可采用Ｎ、Ｐ２Ｏ５、Ｋ２Ｏ比例法，Ｎ肥肥科效应法和综合平衡补充法。     

紫外光度法测定废水中叠氮根含量的研究

该文介绍了应用紫外分光光度法测定废水中叠氮根离子含量的一种新方法，在缓冲溶液ＫＨ２ＰＯ４－ＮａＨＰｏ４介质中，有表面活性剂Ｎ－氯代十六烷基吡啶存在时，Ｎ３＾－与ＣＳ２反应的产物ＣＳ２Ｎ３＾－在３２１ｎｍ波长处有吸收峰，峰高与Ｎ３＾－离子浓度在０．５￣６．０ｍｇ／Ｌ范围内呈线性关系，因此可用紫外分光光度法对Ｎ３＾－含量进行测定。该方法简单，实用，抗干扰能力强，测定下限为０．５ｍｇ／Ｌ，可以用于起爆药     

胡萝卜鲜、干重变化与需肥规律的研究

研究了胡萝卜肉质根产量７３１４９．７ｋｇ／ｈｍ２条件下其鲜重、干重变化及Ｎ，Ｐ２Ｏ５，Ｋ２Ｏ，Ｓ的吸收规律。结果表明：植株鲜重、干重增长高峰期在苗龄４６～６０ｄ（其中肉质根在４６～１０５ｄ，叶在３１～６０ｄ）；每生产１０００ｋｇ肉质根植株需吸收Ｎ１．３８ｋｇ，Ｐ２Ｏ５１．３７ｋｇ，Ｋ２Ｏ２．２３ｋｇ，Ｓ０．１７ｋｇ，其比例为１．００∶０．９９∶１．６２∶０．１２；植株吸收的Ｎ，Ｐ２Ｏ５，Ｋ２Ｏ主要贮存在肉质根内，Ｓ主要贮存在叶内；植株对４种养分吸收强度最大的时期均在苗龄４６～６０ｄ。     

钌（Ⅲ）—KIO4（或KBrO3）—3,5—Br2—PADAP体系催化光度法测…

首次报道了硫酸介质中微量钌（Ⅲ）对ＫＩＯ４（或ＫＢｒＯ３）氧化２－（３，５－二溴－２－吡啶）－偶氮－５－二乙氨基苯酚（３，５－Ｂｒ２－ＰＡＤＡＰ）褪色具有显著的催化使用，并以此反应为指示反应建立了测定微量钌的催化光度法，在Ｒｕ（Ⅲ）－ＫＩＯ４－３，５－Ｂｒ２－ＰＡＤＡＰ体系中，钌（Ⅲ）含量在０．０８０～０．３００μｇ／１０．０ｍｌ范围内符合比耳定律，在Ｒｕ（Ⅲ）－ＫＢｒＯ３－３，５－Ｂｒ２－ＰＡＤ     

球茎甘蓝鲜、干重变化及需肥规律的研究

研究了球茎产量在６０５８８．２ｋｇ／ｈｍ２条件下,球茎甘蓝植株鲜重、干重的增长动态及Ｎ,Ｐ,Ｋ,Ｓ的吸收规律。结果表明：植株鲜重、干重在出苗后７６～９０ｄ生长最快;平均每生产１０００ｋｇ球茎植株需吸收Ｎ３．２８ｋｇ,Ｐ２Ｏ５１．９４ｋｇ,Ｋ２Ｏ３．１７ｋｇ,Ｓ１．０６ｋｇ（比例为１．００∶０．５９∶０．９７∶０．３２）;植株吸收的Ｎ,Ｐ２Ｏ５,Ｋ２Ｏ主要贮存在球茎内,Ｓ则主要贮存在叶内;植株对Ｎ的吸收高峰在出苗后６１～７５ｄ,对Ｐ２Ｏ５,Ｋ２Ｏ和Ｓ的吸收高峰均在出苗后７６～９０ｄ。     

钌(Ⅲ)-KIO_4(或KBrO_3)-3,5-Br_2-PADAP体系催化光度法测定微量钌

首次报道了硫酸介质中微量钌（Ⅲ）对ＫＩＯ４（或ＫＢｒＯ３）氧化２－［（３，５－二溴－２－吡啶）－偶氮－５－二乙氨基苯酚（３，５－Ｂｒ２－ＰＡＤＡＰ）褪色具有显著的催化作用，并以此反应为指示反应建立了测定微量钌的催化光度法．在Ｒｕ（Ⅲ）－ＫＩＯ４－３，５－Ｂｒ２－ＰＡＤＡＰ体系中，钌（Ⅲ）含量在０．０８０～０．３００μｇ／１０．０ｍｌ范围内符合比耳定律；在Ｒｕ（Ⅲ）－ＫＢｒＯ３－３，５－Ｂｒ２－ＰＡＤＡＰ体系中，钌（Ⅲ）含量在０．０５０～０．３０μｇ／１０．０ｍｌ范围内符合比耳定律．这两种方法具有灵敏度高、选择性好、操作简单等特点并已用于实际样品中微量钌的测定，结果令人满意．     

可供转让的科技成果

一、有机无机复合肥和生物有机复合肥（一）技术关键１有机废弃物无害化处理技术。２高效有机无机复合肥配方造粒加工技术。３生物有机复合肥配方加工技术。（二）技术指标有机无机复合肥总养份含量（Ｎ、Ｐ２Ｏ５、Ｋ２Ｏ）２５％。生物有机复合肥总养份（Ｎ、Ｐ２...     

盐生杜氏藻Dunaliella salina的生物学特性与培养研究

盐生杜兵藻富含β－胡萝卜素和蛋白质，适宜在高纬度、光照强的各种咸水环境中生长，对它的生物学特性和培养条件进行了研究，发现适宜于盐生杜氏藻生长的培养基主要成分为：２ｍｏｌ／ＬＮａＣｌ，５ｍｍｏｌ／ＬＫＮＯ３，６．５ｍｍｏｌ／ＬＮａＨＣＯ３，５ｍｍｏｌ／ＬＭｇＳｏｒ，０．３ｍｍｏｌ／ＬＫＨ２ＰＯ４。     

棉花施用锌肥效果研究

对锌肥在棉田施用效果进行了试验。试验结果表明：施锌肥处理小区比不施锌处理的对照区单株铃数增加１．２－２．２个，平均增产１１．０％；单铃重增加７．７％；衣分增加２．６％，绒长增加２．０％；干物质增加５．５％；棉析体内、Ｎ、Ｐ、Ｋ含量增加０．８％－８．９％。可为合理施用锌肥提供依据。     

1—苯基—3—甲基—4—（α—呋喃甲酰基）—5—吡唑酮与中性萃取剂协同萃取钇（Ⅲ）的研究

本文研究了１－苯基－３－甲基－４－（α－呋喃甲酰基）－５－吡唑酮（ＨＡ）单独萃取Ｙ（Ⅲ）及其与二苯亚砜（ＤＰＳＯ），磷酸三丁酯（ＴＢＰ）或三辛基氧膦（ＴＯＰＯ）协同萃取Ｙ（Ⅲ）的行为。确定了萃合物的组成分别为ＹＡ＿３，ＹＡ＿３·ＤＰＳＯ，ＹＡ＿３·ＴＢＰ和ＹＡ＿２（ＮＯ＿３）·２ＴＯＰＯ．算得萃取平衡常数分别为：ｌｏｇＫ＿（Ａ（ＨＡ））＝－６．８６，１ｏｇＫ＿（ＡＢ（ＨＡ＋ＤＰＳＯ））＝－３．８９，ｌｏｇＫ＿（ＡＢ（ＨＡ＋ＴＢＰ））＝－２．５３和ｌｏｇＫ＿（ＡＢ（ＨＡ＋ＴＯＰＯ））＝５．１３．     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that     

On the Thermodynamic Limit for Responses to Static Electromagnetic Fields

For molecular systems,the quantum-mechanical treatment of their responses to static electromagnetic fields usually employs a scalar-potential treatment of the electric field and a vector-potential treatment of the magnetic field.Although the potential for each field separately is associated with the choice of an(unphysical)origin,the precise choice of the origin for the electrostatic field has little consequences for the results.This is different for the     

An affordable accurate evaluation of the binding conformations predicted by molecular docking studies in bio-system

Franck-Condon factors bridge the gap between theoretical modeling and experimental observations for molecular electronic spectroscopy and electron transfer.Under the displaced harmonic oscillator approximation,multidimensional Franck-Condon factors are decomposed into a product of many one-dimensional(1D)Franck-Condon(FC)factors,and each 1D-FC factor is associated with one Huang-Rhys factor that determines the leading contribution of     

Call for Papers

<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with     

Journal of Donghua University ( English Edition) Contents of Volume 31

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