多年生的

Assure your success by growing spectacular plants, from designer petunias to long blooming perennials, from traditional marigolds to the newest Datura and Cerinthe, enabling your customers to create their garden paradise.

保证你们的成功，越来越壮观的植物，从设计师petunias长期盛开的多年生植物，从传统的marigolds到最新的曼陀罗和cerinthe ，使您的顾客创造他们的花园天堂。

Although the quantity of seedlings in fenced plot of site A was bigger than that in unfenced plot, the life form of seedling cohort became simplified and the diversity was reduced.

羊草样地围栏外实生苗的数量高于围栏内，但更多的是增加了糙隐子草和牲畜不喜食的短命一年生植物的数量，减少的却是多年生植物的种类和数量。

The analysis results for community species component and plant diversity showed that exclusion did change the species component and increase plant diversity remarkably, while the indicateor life-form structure, palatability analysis indicated that community for old exclusion is becoming perennity and unpalatability, whereas community for comparative exclusion is under stable non-equilibrium condition, in the view of vegetation coverage, mean height, biomass, palatability of plant composition, community for old exclusion has lower than new, comparative exclusion which proves partly that long-term exclusion can not increase grazing values for semi-arid rangeland.

对3种封育措施群落组成和生物多样性的分析结果表明，封育改变了群落的组成成分并增加了生物多样性，同时对群落植物的生活型、饲用价值分析计算结果则显示，老封育的群落植物逐渐向多年生发展，放牧价值开始降低，而对照区则明显处于一种非平衡的稳定状态。从3种措施植被的盖度、高度、生物量和饲用价值来看，老封育区均低于新封育区和对照区，表明长期封育不利于促进并提高草场的放牧利用价值。

Wood Vinegar is a natural material that is distilled from wood. It is compose of organic acid and hydroxybenzene , Various dosage of wood vinegars, pyrolignerous acid and guaiacol were mixed into organic manure firstly in this experiment, and then, the above said organic manure are separately added into soil. Under the analysis of the amount of the edaphon, adding 10g wood vinegar to 1kg organic manure and 30kg soil can much active the edaphon effectively in a short term and make a maximum rising extent of edaphon numbers.

木醋液是从多年生柞木中经过高温蒸馏出来的纯天然物质，其主要成分是有机酸和酚类物质，为了明确木醋液和主要成分对土壤微生物的作用，将加入不同剂量的木醋液、愈创木酚、醋酸的有机肥施入土壤，观察土壤中微生物数量的变化，结果表明：在1kg有机肥中加入10g木醋液，施入30kg土壤中，土壤微生物数量增加幅度最大，土壤微生物10天内被有效地激活；同时，当在1kg有机肥中木醋液的添加量高达50g时，对土壤微生物有一定的抑制作用。

Any of various tall perennial grasses, especially of the genera Phragmitesor Arundo,having hollow stems, broad leaves, and large plumelike terminal panicles.

芦苇：不同种高大的有中空的茎、宽大的叶、大型羽毛状顶部圆锥花序的多年生植物中的任一种，特别是芦苇属禾本科和芦苇属的植物

Uses method which the field investigation sample and the indoor analysis unify, 2007-2008 years live the unicast awnless brome lawn and the awnless brome and the alfalfa interlacing in the Inner Mongolian nationality university agriculture school test farm take 2 years mix broadcast the lawn and the colleague mix broadcast the lawn as the objects of study, have studied under the different sowing seeds way the forage grass to the soil physics and chemistry nature influence, finally indicated:the change tendency which under the different sowing seeds way increases the soil bulk specific gravity overall along with the soil layer depth to present after reduces first increases, is the 10-20cm soil layer is lowest; Looking from the 0-40cm soil layer's mean value, the unicast awnless brome lawn soil bulk specific gravity is smallest, the colleague mixes broadcasts the lawn soil bulk specific gravity to be biggest.

科尔沁草原是典型的农牧交错地区，长期以来，由于不合理利用草地资源造成该区生态环境严重恶化，农牧业生产受到严重影响[1]。建立高产优质的人工草地是解决我国高寒地区草畜供求季节不平衡的矛盾，促进草地畜牧业持续发展的关键措施之一[ 2]。无芒雀麦和紫花苜蓿都是营养价值高、适口性好、抗寒抗旱能力强的多年生牧草。将这两种牧草混播不仅能提高牧草产量和品质，延长草地使用年限，还能改善牧草的营养，提高牧草的适口性，有利于调制和青贮[3]。

Wood Vinegar is a natural material that is distilled from wood. It is compose of organic acid and hydroxybenzene , Various dosage of wood vinegars, pyrolignerous acid and guaiacol were mixed into organic manure firstly in this experiment, and then, the above said organic manure are separately added into soil. Under the analysis of the amount of the edaphon, adding 10g wood vinegar to 1kg organic manure and 30kg soil can much active the edaphon effectively in a short term and make a maximum rising extent of edaphon numbers.

木醋液是从多年生柞木中经过高温蒸馏出来的纯天然物质，其主要成分是有机酸和酚类物质，为了明确木醋液和主要成分对土壤微生物的作用，将加入不同剂量的木醋液、愈创木酚、醋酸的有机肥施入土壤，观察土壤中微生物数量的变化，结果表明：在1kg有机肥中加入10g木醋液，施入30kg土壤中，土壤微生物数量增加幅度最大，土壤微生物10d内被有效地激活；同时，当在1kg有机肥中木醋液的添加量高达50g时，对土壤微生物有一定的抑制作用。

The relationship between weed invasion and intensity was analysed on sown pasture mixed by whiteclover and perennial ryegrass,and the preliminary results were that 1the number of invasive weeds ismainly dependent on grazing intensity;2the trend of species diversity was successively increase-decrease-increase when the grazing intensity is increase;3 principal invasion weed species are Lysimachiahemsleyana, Eragrostis nigra, etc,8 species;4the sown pasture in question is pioneer stage of the recoverysucce...

本文分析了白三叶草十多年生黑麦草混播人工草地上杂草入侵与放牧强度之间的关系，得出如下初步结论：1）杂草入侵的种数主要决定于放牧强度；2）α物种多样性随放牧加重而有增－减－增的趋势；3）入侵的主要杂草种为点腺过路黄等8个种；4）所论人工草地都处在恢复演替的先锋阶段，因而草地退化的进程还是能予以遏制的。

The total biomass of ephemeral macroalgae differed considerably among different types of substrata.

试验结果表明不同类型底质上的一年藻类的总生物量变化显著；在固定底质上生长的一年生藻类的生物量显著的高于附着于大型多年生藻类上的。

The first year's weeds on the Michigan plot are annual flowering plants , followed by tougher perennials like crabgrass and ragweed . Woodier shrubs will shade and suppress the flowers , followed by pines , which suppress the shrubs .

第一年到访的杂草是每年开花的草本植物，接着被更坚韧的多年生植物如沙果草和豚草取代，木本的灌木丛会荫蔽并抑制开花植物的生长，随后松树又抑制了灌木的生长。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。