计算机工资管理系统软件设计     

李永屏  彭丽贞 《湖南农业大学学报(自然科学版)》1989,(3)

本文简述了用C-dBASE Ⅲ设计的工资管理系统软件及该软件的设计思想、系统结构和部分程序。同时介绍了各级菜单的功能、使用方法和该软件的应用情况。  相似文献   

Windows 98应用技巧三则     

费玉杰 《计算机与农业》2003,(5):42

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单色监视器（HGC卡）环境下运行印刷电路CAD软件SMARTWORK     

石峰  孟昭泉 《吉林农业大学学报》1994,16(A12):233-235

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Effect of Biochar on Relieving Cadmium Stress and Reducing Accumulation in Super japonica Rice   总被引：2，自引：0，他引：2  

ZHANG Zhen-yu  MENG Jun  DANG Shu  CHEN Wen-fu 《中国农业科学(英文版)》2014,(3):547-553

It is of great importance to solve the threats induced by cadmium pollution on crops. This paper examined the effect of biochar on cadmium accumulation in japonica rice and revealed the mechanism underlying the response of protective enzyme system to cadmium stress. Biochar derived from rice straw was applied at two application rates under three cadmium concentrations. Shennong 265, super japonica rice variety, was selected as the test crop. The results indicated that cadmium content in above-ground biomass of rice increased with increasing soil cadmium concentrations, but the biochar application could suppress the accumulation of cadmium to some extent. Under high concentrations of cadmium, content of free proline and MDA （malondialdehyde） were high, so did the SOD （superoxide dismutase）, POD （peroxidase） and CAT （catalase） activity in the flag leaf of rice. However, the protective enzyme activities remained at low level when biochar was added.  相似文献   

计算机在玉米资源管理上的应用     

庄铁成; 王佐会  于连军; 杨阳 《玉米科学》2005,13(3):122-125

玉米资源主要包括早代材料、群体、自交系和杂交种,群体是选育自交系的重要资源,早代材料是选育优良玉米自交系的原料,优良的自交系是选育优良杂交种的重要物质基础。显然,玉米资源的收集、观察、分析、整理和研究对玉米育种工作是极为重要的。在对众多纷纭的玉米资料进行整理、分析和研究时,不借助计算机的帮助是无法想象的。我们采用MicrosoftAccess2000创建各种数据库和基本表格,应用程序是采用Delphi7.0编写完成的。  相似文献   

施用生物肥料，镁石灰石，玄武岩可改善马来西亚酸性硫酸盐土壤化学性质与水稻生长状况   总被引：1，自引：1，他引：0  

Q. A. PANHWAR  U. A. NAHER  O. RADZIAH  J. SHAMSHUDDIN  I. MOHD RAZI 《土壤圈》2014,24(6):827-835

Acid sulfate soils are normally not suitable for crop production unless they are appropriately ameliorated. An experiment was conducted in a glasshouse to enhance the growth of rice, variety MR219, planted on an acid sulfate soil using various soil amendments.The soil was collected from Semerak, Kelantan, Malaysia. Ground magnesium limestone（GML）, bio-fertilizer, and basalt（each 4t ha^-1） were added either alone or in combinations into the soil in pots 15 d before transplanting. Nitrogen, P and potash were applied at 150, 30, and 60 kg ha^-1, respectively. Three seven-day-old rice seedlings were transplanted into each pot. The soil had a p H of 3.8 and contained organic C of 21 g kg^-1, N of 1.2 g kg^-1, available P of 192 mg kg^-1, exchangeable K of 0.05 cmolc kg^-1,and exchangeable Al of 4.30 cmol c kg^-1, with low amounts of exchangeable Ca and Mg（0.60 and 0.70 cmol c kg^-1）. Bio-fertilizer treatment in combination with GML resulted in the highest p H of 5.4. The presence of high Al or Fe concentrations in the control soil without amendment severely affected the growth of rice. At 60 d of growth, higher plant heights, tiller numbers and leaf chlorophyll contents were obtained when the bio-fertilizer was applied individually or in combination with GML compared to the control. The presence of beneficial bacteria in bio-fertilizer might produce phytohormones and organic acids that could enhance plant growth and subsequently increase nutrient uptake by rice. Hence, it can be concluded that addition of bio-fertilizer and GML improved rice growth by increasing soil pH which consequently eliminated Al and/or Fe toxicity prevalent in the acid sulfate soil.  相似文献   

畜禽废弃物、施用畜禽废弃物牧场以及草芽中氨基化合物的研究     

Z. Q. HE  Z. N. SENWO  H. X. ZOU  I. A. TAZISONG  D. A. MARTENS 《土壤圈》2014,24(2):178-185

Amino compounds(ACs),i.e.,amino acids and amino sugars,are the major forms of organic nitrogen(N)in animal manure and soil.To increase our understanding on the effect of long-term poultry litter(PL)application on soil AC pools and turnover,in this study,we determined the contents of 21 ACs in 23 PL samples,15 soil samples collected from 0–20,20–40,and 40–60 cm layers of five pasture plots with 0,5,10,15 and 20 years of PL applications,and 5 grass shoot samples grown on these pasture fields.The contents of 21 ACs were simultaneously determined by methanesulfonic acid hydrolysis/extraction and anion chromatography-pulsed amperometry.PL application increased soil total and individual AC contents with a distribution pattern similar to that of AC in PL.The highest AC-N concentrations were observed in the soils with 10-or 15-year PL applications,inconsistent with the order of annual application rates or cumulative applied PL amounts.Application of PL increased the AC contents in grass shoots whereby the highest increase of most ACs was with the shoots from the fields that received PL for 5 years.These observations suggested that both freshly applied and residual PL had contributions to the soil AC-N,and that PL application also accelerated AC-N transformation in soil.  相似文献   

计算机在玉米资源管理上的应用     

于连军  庄铁成  杨阳  王佐会 《农业图书情报学刊》2005,17(2):189-193

玉米资源主要包括早代材料、群体、自交系和杂交种 ,群体是选育自交系的重要资源 ,早代材料是选育优良玉米自交系的原料 ,优良的自交系是选育优良杂交种的重要物质基础。显然 ,玉米资源的收集、观察、分析、整理和研究对玉米育种工作是极为重要的。在对众多纷纭的玉米资料进行整理、分析和研究时 ,不借助计算机的帮助已是无法想象的了。我们采用MicrosoftAccess 2 0 0 0创建各种数据库和基本表格 ,应用程序是采用Delphi 7.0编写完成的  相似文献   

生物多样性调查智能终端应用程序的发展     

张超  于立繁  马菲  张艳丽  王聪  潘绪斌 《植物检疫》2023,(6):1-6

信息技术已成为生物多样性保护和管理的重要工具。通过电子设备及内置软件（特别是智能终端应用程序APP）记录、传输生物多样性信息已经是生物多样性调查实践的主要方式。本文通过对比生物记、花伴侣、形色、北极花生物调查、绿途、生命观察（Biotracks）、iNaturalist、Leafsnap、Flora Incognita共9种生物多样性调查软件在开发者、软件费用、安装环境、运行内存、图像拍照和识别、显示经纬度和地图定位等方面的差异，分析了各应用程序的功能特点。生物记、生命观察和北极花生物调查应用程序可详细记录生物数据，形色、花伴侣缺乏详细的生物记录功能，绿途则更加注重植被分布数据的采集，Leafsnap、Flora Incognita具有识别功能，但其他的衍生功能较少。iNaturalist除具有识别能力外，还具有强大的社区交流功能。这些应用程序通过数据采集、记录和共享，让公众更好地了解生物多样性，同时为生物多样性保护和管理提供了数据支持。本文为用户选择适合其需求的生物多样性调查软件提供了依据，对软件的深入分析为未来软件的优化与完善提供了启示和建议。  相似文献