Stocking相关论文
The influence of stocking levels,clone,fertilization,and weed control on surface C02 efflux in a mid
Silvicultural practices applied in managed for-est plantations may help counteract the effects of climate change by infl......
Global warming and expansion of landscape occupation are increasing occurrence of diseases in forest plantation....
Growth and form of Quercus robur and Fraxinus excelsior respond distinctly different to initial grow
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......
The objective of the study was to determine the optimal density of fingerlings of the Nile tilapia (<em>Oreochromis nilo......
如何提升养殖肉禽的经济效益,采取果树下苜蓿地放养加适当补饲试验,结果表明：在放养育肥期,白肉杂公鸡与红肉杂公鸡周增重差异显著（0......
2010年3月至2011年12月在高坝洲水库增殖放流滤食性鱼类后,对水域理化因子进行了常规监测,并对监测数据进行了比较分析。结果显示,......
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This paper discusses the early silviculture of silver fir(Abies alba Mill.),a major softwood in Romania covering more th......
Growth and form of Quercus robur and Fraxinus excelsior respond distinctly different to initial grow
起始的成长空格具有到生长和单个树的优秀开发的批评重要性。我们调查了怎么死亡，生长(在胸高度的直径，全部的高度)，修剪的天赋(到第......
Optimization of Stocking Density for the Sea Cucumber, Apostichopusjaponicus Selenka, Under Feed-Sup
Optimal stocking densities were investigated for the sea cucumber Apostichopus japonicus Selenka under feed-supplement a......
Effect of Stocking Density on Water Quality and（Growth, Body Composition and Plasma Cortisol Content
The goal of the study was to examine the effect of stocking density on the water quality of culture area, as well as the......
香鱼自宋至今视为水产中珍品，但至今还没有人工精养和放流增殖的生产单位，香鱼广泛分布于北地鸭绿江南至广西北仑河等山川溪流中，是一......
本文研究放牧草原中地衣和地耳的化学元素组成特点，水溶性元素形态所占的比例以及地衣的元素含量与放牧率的关系。结果表明，地衣和地......
按回捕日期取样测定长江口中华绒螯蟹亲蟹标志放流前后血清与肝胰腺的生理指标,初步研究了放流亲蟹对长江口环境的生理适应过程。......
应用遥感和地理信息系统以及地面调查等多种技术，通过对达日县１９９５－１９９７年地面观测资料和遥感影像的对比分析，确定了该区可利用草地系数，可食牧......
根据紫胶虫的形态特征、生活习性、生物学特性及蛹散规律,阐述了紫胶虫放养中的各个技术环节及放养后的管理和紫胶的采收,为紫胶生......
用显微技术法分别在放牧率为1.33，4.00和6.67只/hm２下对内蒙古细毛羊的食性进行了研究。结果表明，随着放牧率的增大，草场的植物种类组......
从所在高校的实际出发,高校的采购工作只有顺应市场经济的形势,加强设备论证审批,转变传统的采购方式,开展科学的评标工作,才能提......
研究了高淳池塘生态养殖河蟹放养密度对平均育成规格、产量和成活率的影响。结果表明,河蟹平均育成规格(Y)与放养密度(x)的关系为:......
采用微卫星标记研究天然封闭型水体肖四海内鳜放流群体与野生群体的遗传差异,试图从分子水平探讨人工增殖放流群体与野生群体遗传......
职务犯罪是国家工作人员利用职权进行的犯罪，它的本质特征是权力商品化，犯罪人利用社会公共权力进行“权钱交易”，以满足个人、家庭或......
在具有阶段结构和时滞的捕食系统基础上,建立一类收获幼年食饵和放养幼年捕食者的开发模型,利用比较原理及特征根理论,得到了系统......
农牧民饲养畜禽的方法无外乎两种：“圈养”和“放养”。“圈养”就是将动物关在圈里饲养，主要优点是动物活动环境稳定，便于管理；比较安......
阐述了网箱养殖黄鳝的优势，并从养殖前准备、鳝种放养和日常饲养管理3个方面对网箱养缮的关键技术进行了总结。......
研究认为：对杉木施肥以中龄林为佳，Ｉ、Ⅱ类地林分施肥效果比Ⅲ类地好；对幼林施肥以Ⅱ、Ⅲ类地施肥效果比Ｉ类地好；深翻抚育时间选择幼龄时......
Effects of stocking density on the growth and immunity of Atlantic salmon salmo salar reared in reci
Atlantic salmon reared in recirculating aquaculture system(RAS)may lead to inappropriately high stocking density,because......
基于单一制造商与单一零售商所组成的渠道结构，放宽了市场需求为确定性的假设，引入了存货因子这一决策变量，先后考察了Stackelberg主......
Stocking of Lake Kinneret by exotic fish species (Mugilids: Mugil cephalus and Liza ramada) started in 1958. The rationa......
A series of self-designed and woven compression stockings were used in this pressure comparison experiment. In order to ......
焦赛湖面积有200公顷,1990年4月26日投放人工半咸水繁殖的河蟹4公斤,翌年捕获成蟹872.42公斤,产值43867元,纯收入33859.24元,平均......
Effect of Stocking Density on Growth Performance, Production Trait, Food Utilization and Body Compos
A 10-week rearing trial was conducted in cages with average initial weight of 9.15 ± 0.2 g/fish and average initial......
本文以杉木人工林和落叶松天然林标准地数据为材料,应用D=aN~bP~cS~dH~e数学模型进行计算分析,并从理论上证明,当同一树种的树高一......
Availability and Timing of Fathead Minnow Supplementation Influence Largemouth Bass Survival and Pro
Adjustments to rearing practices should be justified with increases in production, stocking success, or angler satisfact......
Stocking density is an important factor for animal production performance.It appears particularly urgent and important t......
